wee: Report 1359

HYDROMECHANICS

AERODYNAMICS

STRUCTURAL
MECHANICS

APPLIED
“CMATICS

A RADIO CONTROL AND POWERING SYSTEM FOR
FREE-RUNNING MODELS OF SURFACE SHIPS

by

C.W. Hoffman

INDUSTRIAL DEPARTMENT

RESEARCH AND DEVELOPMENT REPORT

ebroary 1960

Report 1359

A RADIO CONTROL AND POWERING SYSTEM FOR
FREE-RUNNING MODELS OF SURFACE SHIPS

by

C.W. Hoffman

February 1960 Report 1359

TABLE OF CONTENTS

Bled Ws DD cad (40) 6) BO) Rea ata et sac eee NEE Een eee ore sree ae RIA ec rr etrcodnceoron Scopecon

OC REE “A PPR OA CHIR s serene tm en Met Clea Ser foal ie (Ua eke ea le ue ae
ele ControlyandsReadoutsE.quipmentme see ee ee

2.2 Power and Power Control Equipment ................cccccccecceccescecececesscereesteesenseenceseease

3. SPECIFICAT

TON eee es, se ais esti aea tea bscure rsa Ve So eaueu gh oats See lia scuse gl dae

301) /Control/and Powering) Circuits ae arse ae ce ane Cee

3.2 Readout
3.3 Radio Li

GARG UTES ee ae doh 2 A unacen a raeeb be ton ean RROEN? coc 10 Penn Beams saan
bY EIGER saetes Oe aS LAT Fe Selec Se AR 2S INU) et Aiea A RE

3.4 Sizes and Weights of Model Equipment ....................ccccccceccceceecceesceececeeececaeeceees

PART Il — SYST

1. DISCUSSION

EM DESIGN ieee eee NN Bee lle i aeapeucil as nae uous eae

2. RADIO-CONTROL AND TELEMETERING LINKS ...........0..00 ccs et cteeeeteeneees

35) (CON TROT) FQ UEP MENG ee eae ae RM eta res Sete eae eae ea
Se Rudder: Channel. 2. css o6.2 scars saeco eee eee Seer oe Oe rE em at oN Le eee
3.2 Propulsion-Control Channels ....0............:ceccescesseceseescesececeseseeeeeessessesecessessessensesees
3330 Fatl-Safes Circuit is. eecs eee se isco se ene ata eee eae ee aa RSH

3.4 Spare To

4. POWER AND
4.1 General

ne! Channel) es ese is OE TEL ee ASE IANS 1) ed

POWER-CONTROL EQUIPMENT. .........0.....ececccecececsceteeeeceseceeeeseeeeeerees

AO B a tteniesy ose i eR A UU aU IN MCh Nts Aa Blind mca is sens eee ee

4.3 Motor-Ge

NOEEAtOT: SES ee TN Ma LG ag eeeclee dune ad, a

4.4 Brror Regulator 22<s.cc). 0s 0sect ses ca a ceesuokcbbens te ue cwacee transis teestdseeiialess tos: Ae eee
4:55, Motor Alternator .2ss):ceccctele eee aad a Ue tc eee cohe aac. ocean
4.6) Battery (Charger 25.2). 2.50. 8 cscs cee ed tot A ea
AT) Starting Equipment | i.c.5.sseeet eco pes et ceeens sersnse sacs vena cnssescessessssisuct sa seeemeneomenceseens

be CREADOUT EQUIPMENT: i650 ee es or elise ee ee
Bedi Rudder\Chammel io). ecco once occ endear e Laa eo oe ee ER ce
£5 $0 Mes) £9) ©). G31 of 0 = ne eR Ree crtcc cauooddosboudsoceod

il

Page

8.

9.

5.3 Spare Analog Circuit ................ccceeee
5.4 Spare Tone Circuit ...........0 cece

ROWER SUPRIPIGIES pee eee ete eee
6.1 Console Equipment ...............:ccceeeeeee:
6.2 Model Equipment ................c:eeeeeeeereees

CWONCIUWSIONS Hee ieee atecsessssnseetenten eee
RECOMMENDATIONS .............00 cess

ACKNOWLEDGMENTS ..............0.00e eee

PART III — INSTALLATION AND OPERATION

ike

PART IV — MAINTENANCE
1.

2.

INS RATGICA TION ee ee ee Basha easton eavenese
1.1 Shore Equipment .................:eccesceeereeereeeees
1.2 Model Equipment ...................0:ceeeeeees
1.3 Auxiliary Equipment ..........00..0. ee

ORE TVACRION 6 eee te LE Bence
2.1 Starting Procedure ..............0...cccccsccceeeees
9.2 Calibrating Procedure ................::::c0
QEse Modell Testing: <0...) ne. ed eee

2.4 Emergency Stops and Model Shut-Down

LDU ES OLUISIS) (ON Saaicancsoscadtecce tance succes nace aeaase Roasts

TELEMETERING EQUIPMENT .....................-.
2.1 Subcarrier Oscillators ....................0000
OO Tone Circuitrys ce ee ree
2.38 Mixing Networks ...............0:::c:ccecssecesseeeee
ORAS SEPANSMICCOLs jc soes sees eee oe ssa hee sone oeeoeees
9.5 Receivers ............0:ccccee SEEN ee.

2.6 Discrimimators .................0cccccececceececeeeeeeeee

CONTROL EQUIPMENT. ..............00.....cceee eee
Se Rudder Channel) oo. esc eect ee

POWERING EQUIPMENT ........0..... eee
4.1 Rotating Equipment .........0....0..0... ee

ill

Page

II-11
II-11

II-11
I-11
II-12

I-12
II-13
Il-14
III-1

IlI-1
Ill-1
Ill-2
Ill-3

III-5
III-5
Ill-7
III-8
IlI-8

IV-1
IV-1

IV-1
IV-2
IV-2
IV-3
IV-3
IV-3
IV-4

IV-4
IV-4
IV-5

IV-7
IV-7

4.9/3) Starting Equipments coc deco shcte oss Ree, oS egA Rh NH AMO eR en
4.3) Battery Chargers. ia. ce bee cule satis seca nee pasate eeviec Series de ane Te ge Oe A ee ee
AAs Batteries eit cer te eee have medal Wectan cal duu dd: eget ween MABE OMe Uc ce ea

55 ORE AID OWrE SE OUTER MIBSN GI iesar eee cet el PRN ers Decree Hear RR ee gee
Heissiud dern@ hanes esses tae 2 01 Ohh hae eteads haat oceania ere I
522) Propulsion) Channels) ir: caters cee ater serene oe epee dee esata aes sa ee [a Oe OR em
5.5, Spare: Channels eect. 2s ven is WOR AMC SSE Liao) A er

6S CP OWE Re SUBIR ICI E Sie ter cee Rarer tee ame cr et) aN ae Oh cad OR ar ee ne eee
6:1. Console tEaquipmenty is coer Ue Soe Wes aitias ce tucertl eal sania et Ra tegen ee
6-2"\Modell Wa wipe mtyy eect we ie dene sts eg eee i aa Re alee U) nee ee

Mis BLO WER costed ead tess seanene i labaey Sacre au tide sat aaah ee uate Gree ule eet ea a ae a

PART V — BLOCK AND SCHEMATIC DIAGRAMS, GRAPHS,
AND PHOT OGRABRHS) cess stil Mecsssweaueeteneas bets oannsoecais stu cae aa ere

Figure 1 — Control Equipment, Console, Block Diagram ...............:::ccccecceseerceeeeseeeeees
Figure 2 — Control Equipment, Model, Block Diagram ..................::ccccecceereeceeeeeeereeneees
Figure 3 — Readout Equipment, Model, Block Diagram ................::cceccsecceecseereeeeteeeeeee
Figure 4 — Readout Equipment, Console, Block Diagram ..............0...::cesceseceeeeereeees
Figure 5 =‘Control Panel! of ‘Consol ey cece 2 os cares coos ees a a ea sae ena bec
Figure 6 — Rudder Servo System, Block Diagram .................:::cccccccsceeeeeeeeneeeteeceeseenseeenes
Figure 7 — Rudder Servo System, Speed-Load Curves ..................:cccecceeseseeeeeeteeeeeeees

Figure 8 — Rudder Servo System, Dial Setting versus Servo Speed for
Velocity Stabilized Operation ................cccecccecececeeeeeeeeeeeceeeneeeeneeceneceseseneeeeens

Figure 9 — Error Regulator, Block Diagram ..........0...0..:ccecceececeescesececeeseeeeesemeceeetnseeaeee
Figure 10 — Console, Rear View, Showing Power Input Connectors, Connectors

for External Circuitry, and Foot Switch for Intercommunications

SYStOM .2 2: 0c. che cess setae kee yee ee ca neacan a oe Gt sate ara la bist a canal aaa
Figure 11 — Interunit Cabling, Schematic Diagram .................c:::ceccceesseceeceeeeceeeeeceeeeeeeeees

Figure 12 — Console Front View with Control Panels and Control and
Readout Unit Drawer Opend ..2.c-2:.-2..scssl ooo deka cones ar ee eo seco aaa

Figure 13 — Propulsion and Rudder Control Panels, Schematic Diagram......................

lv

Figure 14 — Power Control Panel, Schematic Diagram ...............0.cccccccccccsseesecseeteenees
Figure 15 — Interunit Cabling of Console, Schematic Diagram ................0....0cccccececeee
Figure 16 — Console Test Panel, Schematic Diagram ..0...........0..:cccccccecccecsceteceeesetseeeseens
Figure 17 — Control and Readout Unit Type 304-1A, Front Oblique View .................
Figure 18 — Control and Readout Unit Type 304-1A, Rear View ................00ccccceceeeeees
Figure 19 — Control and Readout Unit Type 304-1A, Top View ............0..cceeeeeeeeeeeeees

Figure 20 — Control and Readout Unit Type 304-1A, Control Section,
Schematics ia ora jeg vse cro e eee tate esas acess es aaa arate wipes Ae tact creme sacesuseeesteds

Figure 21 — Control and Readout Unit Type 304-1A, Readout Section,
SchematicyD taoramy eee yee wares eee a eae, oi beter one ren ede enee TUS ter Lantos

Figure 22 — Control Circuit Power Unit Type 304-2A, Front Oblique View ..................
Figure 23 — Control Circuit Power Unit Type 304-2A, Rear Oblique View ..........00........
Figure 24 — Control Circuit Power Unit Type 304-2A, Schematic Diagram ....................
Figure 25 — Readout Circuit Power Unit Type 304-3A, Front Oblique View ................
Figure 26 — Readout Circuit Power Unit Type 304-3A, Top View ................::ceeee
Figure 27 — Readout Circuit Power Unit Type 304-3A, Schematic Diagram ..................
Figure 28 — Receiver, Tele-Dynamics Type 2001B, Front Oblique View ......................
Figure 29 — Demodulator Rack Type 304-4A, Front Oblique View ...............0.cc ee
Figure 30 — Demodulator Rack Type 304-4A, Rear Oblique View ..................:e: eee
Figure 31 — Demodulator Rack Type 304-4A, Schematic Diagram..............00.00.0. eee
Figure 32 — Tone Detector Type 304-5A, Front Oblique View ..............0..:ccccceeeeeeeeeeeeee
Figure 33 — Tone Detector Type 304-5A, Side View .............:cccccecccescceseceeceeeceeeceeeeeeseeees
Figure 34 — Tone Detector Type 304-5A, Schematic Diagram ................0..00.eceee ee
Figure 35 — Tone Detector Test Unit, Schematic Diagram ..................0..:::cceeecttseeeeeees

Figure 36 — Receiver and Demodulator Power Unit Type 304-6A,
Biront@ Dlitce Vite wes eee eee eat NLL Sa eee ae ae nN ee

Figure 37 — Receiver and Demodulator Power Unit, Type 304-6A,
Rear @bliquer Vile wr ssssici ites mene occ ke eases vacenianssaccatende eRe as Betetih

Figure 38 — Receiver and Demodulator Power Unit Type 304-6A, Bottom View .......... V-32

Figure 39 — Receiver and Demodulator Power Unit Type 304-6A,

Schematic Dia er army secs we sss eee eee ee ee ee ee ee V-33
Figure 40 — Servo Amplifier Type 304-7A, Rear Oblique View ................:::ececeereeeee V-34
Figure 41 — Servo Amplifier Type 304-7A, Bottom View .............::ccccccscecsseeeeeeseeseeeeeees V-34
Figure 42 — Servo Amplifier Type 304-7A, Schematic Diagram ................0.0.0:ceeeee V-35
Figure 48 — Servo Amplifier Type 304-7A, Details of Special Transformers ....... ocise V-36
Figure 44 — Servo Unit Type 304-8A, Side View with Attachments ........0........:cceee V-37
Figure 45 — Servo Unit Type 304-8A, Top Oblique View ................::ccccceeceeeteeeeteeteettees V-37
Figure 46 — Servo Unit Type 304-8A, Schematic Diagram ................ccccccccccsseceseceteeetseesees V-38
Figure 47 — 10- and 40-Ampere-Hour Batteries, Side View ...............::::ccecceseeeeceteereeeteeees V-39
Figure 48 — Motor-Alternator and Control Unit Type 304-9A,

Side Oblique’ Vile wearer 2.0e ck cccrus shar. eee es cea rar ere ena eel leer oe atin apne ee ee ee V-39
Figure 49 — Motor-Generator and Control Unit Type 304-10A,

Side Obliguey: View fe se26 28 ies oe er RO ee at Melee V-40
Figure 50 — Propulsion System, Schematic Diagram ..............:::cccceccceeseeeeceesseeeceeeeeseensees V-41
Figure 51 — Readout Unit Type 304-11A, Rear Oblique View ..................::cccceeseeseeeteees V-492
Figure 52 — Readout Unit Type 304-11A, Top View .0..........ccccceccceecceeceeseeeseeenceenseeeeenes V-42
Figure 53 — Readout Unit Type 304-11A, Bottom View ........... Bh ical AO le V-43
Figure 54 — Readout Unit Type 304-11A, Schematic Diagram .................ee:cccceceereeeereees V-44
Figure 55 — RPM Pickup Type 304-12A 00.00... .ecceccceccceceesnecereencecenecerecseeeaseceaeenseesneenseenseeees V-45
Figure 56 — Error Regulator Type 304-13A, Top View ...................:ceecesceeeceeseeeceeseeeeeeenee V-45
Figure 57 — Error Regulator Type 304-13A, Bottom View ................:::c:eccesceseesceseseeeeeees V-46
Figure 58 — Error Regulator Type 304-13A, Bottom View without Card ..................... V-46
Figure 59 — Error Regulator Type 304-13A, Schematic Diagram.................::cccccereseeeerees V-47
Figure 60 — Error Regulator Type 304-13A, Details of Special Transformer ................. V-48
Figure 61 — Cable Details, Schematic Diagram .....................:cesceceessecescceeeeseeneeceseeeceseeens V-49
PAD Vij RE MERE NCE Sipe cn eee een eens BE at Race Eee toate Gear poocacaochacoasnced VI-1

vi

wan isoe

v0

g edxy,

e[OSuoD [OUD OIpey

} Ope
II2H SS¥[Q-JeulIVp JO JepowW e[%9S-FG/T UL peT[e}suy weyshg JoNUOD oOIpeYy

ABSTRACT

This report describes a radio-control system for free-running models of
surface ships. The system is designed for use in models ranging from approxi-
mately 15 to 30 feet in length and is arranged so that it may be used with single
or multiscrew propulsion systems. A proportional rudder-control channel and
two proportional propulsion-control channels are provided. Rudder position,
rudder running time, and propulsion shaft rpm are indicated on the console to
guide the operator in controlling the model. The system is powered by long-life
rechargeable nickel-cadmium batteries.

This report includes a brief review of the engineering study, and
describes the complete system. Installation, operation and maintenance

instructions, with photographs and schematic diagrams, are included.

INTRODUCTION

Free-running self-powered models of surface ships are used by the TMB Hydromechanics
Laboratory for tests to determine and predict maneuverability characteristics of the ship. In
the past these tests have been conducted in the J-shaped end of the main TMB towing tank.
Power and control circuits to the model have been carried through a multiconductor cable or
‘‘drop-cord,’’ supported by a movable boom which is manually operated to suspend the ‘‘drop-
cord’’ more or less directly over the model during the test maneuver.

During the course of design of the new TMB Maneuvering and Seakeeping Facility now
nearing completion, work was initiated to develop requirements and specifications for a
completely free-running self-powered radio-controlled model system. Since the maneuvering
basin in this facility is about 240 by 360 feet, it was felt that a moving boom and drop-cord
would be impractical over an area of this size. The functional requirements! for the radio-
control system were developed by the Stability and Control Division of the Nydromechanics
Laboratory. The Instrumentation Division and the Facilities Division of the Industrial
Department jointly conducted a feasibility and preliminary design study? of a system to meet
these requirements and subsequently designed and constructed the complete control and

powering system.

References are listed on page VI-1.

1x

PART | — ENGINEERING STUDY

1. THE PROBLEM

The functional requirements for a radio-control system! called for a system for use in
10- to 30-foot models of surface ships. The total displacement for these models ranged from
130 pounds for 10-foot models to approximately 2 tons for some of the large models. The
control system was to provide two channels of step- or full-proportional control for propulsion
motor drive, with capabilities of reversing either or both motors, and a third channel for step
or proportional control of one or tworudders. The original propulsion requirement of 2 hp per
channel was later revised to 3 hp per channel. Rudder torque requirements ranged from zero
to 100 inch-pounds per rudder at velocities of from 4 to 40 degrees per second. It was desired
that the overall accuracy and stability of the system be better then + 1 percent for each control
function. The design of the system was to be flexible enough to permit the equipment to be
used in as wide a range of hull types as possible and for a wide variety of model tests.

The primary problems in the design of the system were: (1) the requirements for very
high accuracy and stability in both steering and speed control, (2) the need for large amounts
of propulsion power during 2- to 4-minute test runs, and (3) the limitations on weight of the
equipment, to permit it to be used in small models.

There were several minor requirements, such as having an indication of model-control
behavior at the console, and providing a readout system which could be expanded to handle

additional data channels. These did not constitute any serious problem, however.
2. THE APPROACH

2.1 CONTROL AND READOUT EQUIPMENT

The first problem to be solved was the selection of suitable radio-control and data-
handling equipment, and many types of radio-control and telemetering equipment were considered.
It appeared at first that one of the military types of drone-control equipment would be suitable.
Several types of these systems were investigated, ranging from the simple ‘‘beep’’ type to
systems containing several proportional and on-off channels. A digital data-transmission
system was also considered. This had been designed for the control of large drone boats and
was of relatively high accuracy and stability. There were specially designed actuators for use
with some of these systems; however, they were not available with suitable run-in rates and
torque capabilities. None of these systems were considered to come near enough to the re-
quirements of the TMB radio-control system.

Attention was next focused on the use of standard telemetering equipment for both the

control and readout equipment. There are a wide variety of telemetering methods such as

I-1

FM (frequency modulation), PAM (pulse amplitude modulation), PWM or PDM (pulse width or
duration modulation), and PCM (pulse code modulation). The PCM systems were considered
highly desirable for this application because of their high accuracy, but the equipment was
rather large and complex for use as control equipment. The other types of pulse systems had
little to offer in accuracy over the FM systems, and had the disadvantage that such systems
are somewhat subject to loss of synchronization if the radio signal is momentarily lost.

Investigation of the FM systems disclosed that system accuracies of better than
1 percent should be possible if components were carefully selected and used under limited
environmental conditions. This type of system could also be expanded very easily if addi-
tional data channels were required at a later date.

Subcarrier oscillators and discriminators were commercially available with stability
and accuracy within + 1/4 percent or better. Subcarrier oscillators and phase-modulated
transmitters were generally available in subminiature form; however, at the time there had
not been a large demand for subminiaturized discriminators and receivers since this is normal-
ly ground-based equipment, and for this reason, only a few types were available. Transistor-
ized subcarrier equipment was becoming available, but the stability and accuracy were not
comparable to the best subminiature vacuum tube gear.

The final decision was to use vacuum tube FM-PM telemetering gear for both the
control and readout portions of the system. It was realized that this equipment would be too
large for use in 10- to 15-foot models. However, since a single system could not possibly
meet the conflicting weight requirements for small models and the servo and propulsion power
requirements for large models, it was considered desirable to have a system suitable for use
in the models of the sizes most frequently used. Although commercial subcarrier circuitry
could also have been used for control of on-off functions, such as fail-safe and propulsion
motor reversing, it was felt that low-frequency tone circuitry would be more suitable for these
purposes. This would permit a great saving of weight. By using high-Q circuits it would be
possible to handle several on-off channels in the frequency band occupied by one standard
FM subcarrier channel. Further reductions in the weight of this equipment could be gained
by the use of electromechanical oscillator controls and frequency detectors which eliminated
the need for large high-Q inductors in the frequency-determining circuitry.

In order to maintain as high a degree of stability and accuracy as possible, the use of
regulated power supplies was considered mandatory. Vacuum tube regulators could be used
for the console circuitry, but to keep the power drain in the model equipment low, transistor-
ized regulators were required. These regulators have an efficiency of about 80 percent as
compared to the 25-percent efficiency, and greater size and weight of vacuum tube
supplies.

There were no servo actuators commercially available meeting the variable-speed and
torque requirements for the rudder servo. A unit of special design was required to meet all

of the system requirements including compatibility with existing dynamometers. To meet the

I-2

variable-speed requirement with standard types of servo equipment would have required the
use of a relatively large motor having good speed regulation and a variable-ratio gear box for
changing speed. To eliminate the need for a large motor and variable-ratio gear box, a special

servo was devised which accomplished these functions by means of electrical feedback.

2.2 POWER AND POWER CONTROL EQUIPMENT

A great deal of study went into the selection of a drive system and its components.
Choice of a prime mover was quickly limited to a storage battery because its energy per pound
compares favorably to compressed gasses, wound springs, etc.; because batteries have little
effect on the model and its contents; and because electricity is easy to control.

Four commercially available types of batteries were considered: the lead-acid,
silver-zinc, nickel-cadmium, and nickel-iron. Weight, terminal voltage stability, and battery
cost per test run eliminated all but the nickel-cadmium battery. The nickel-cadmium battery
weighs less than one-third the weight of an equivalent lead-acid type, it can be charged or
discharged at very high current rates, and it has an extremely long life of 10 to 15 years. Its
terminal voltage curve was not flat like that of the silver-zinc battery, but was much better
than that of the lead-acid battery.

When the prime mover had been selected, consideration was given to propulsion motor
requirements. Use of a 100-cell battery, with cell switching and voltage interpolating, was
eliminated because of certain disadvantages, which included the inability of the system to
restrict the voltage change to 1 percent during a test run. The only way in which the speed
accuracy requirement could be met was to use a feedback-regulated variable-voltage motor-
generator set. Since specifications called for two independently controlled sources, two
motor-generator sets are provided. A source of 400-cycle power for instrumentation was also
specified, hence an alternator set is provided.

To keep the weight of the rotating equipment to a minimum, fairly high rotational speeds
were dictated. However, this introduced the possibility of objectionable precessional forces
acting while the model was maneuvering or being tested in waves. The rotation of the pair of
motor-generator sets, or of one motor-generator set and the alternator set, are opposite one
another so that gyroscopic effects are partially canceled.

A further advantage of motor-generator sets is that their drive motors will remain
running once started. The propulsion motors are easily started and stopped by controlling
the generator voltage. Hence, no starting equipment is needed for-the propulsion motors, and
the starting equipment for the motor-generator and alternator sets is not located in the model.

To meet the speed accuracy requirement, feedback regulation is required. Normally,
the speed of a motor is controlled by the use of a tachometer generator and a speed reference
voltage. In this application it is desired that the speed of the motors be constant within
1 percent during the approach part of the run, but be permitted to change when the load on the

propellers varies, as in turns. Furthermore, series propulsion motors were specified, which

I-3

is contrary to the usual speed regulation practice. Therefore, the best answer to these con-
flicting requirements of constant speed under one set of conditions and changing speed under
another set of conditions is regulation of the voltage supplied to the motor terminals. This
type of regulation is analogous to a relatively unlimited supply of steam, maintained at a
constant pressure, being delivered to a ship’s turbine during maneuvers. Stepless control of
the generator voltage throughout its entire range is permitted rather simply by voltage feedback
regulation. Thus, an operator can match the carriage speed quite easily by means of the pro-
portional radio-control circuitry.

It is phsically impossible, within the weight limitations, to have sufficient battery
capacity for several hours operation between charges. A choice had to be made between
changing batteries frequently or charging the battery between test runs without removing it
from the model. The latter choice permits testing indefinitely with no more lost time between
runs than that normally taken to prepare for the next run. Since motor-generator sets were
selected, a lower voltage battery was permissible. Using the nickel-cadmium battery and
charging it after each run permits the use of a lower capacity and, therefore, lighter battery.
The charger selected is so designed that it can practically recharge the battery in about
8 minutes and simultaneously supply the power required to keep the generator sets turning
over and to keep all electronic equipment warmed up, thus minimizing drift yet imposing no
drain on the battery.

Reduced voltage starting of motor-generator and alternator-set drive motors is mandatory.
In order to keep the amount of equipment in the model to a minimum, the bulk of the starting
equipment is mounted on the charger. Plug-in connections to the model are made and once
the generators are started, running contactors located in the model ‘‘seal in’’ and keep the
sets running whether the power is being supplied from the battery or from the battery charger.
However, if the source of power is interrupted or if the voltage falls 20 percent below normal,
the contactors will open and it is necessary to go through the normal starting sequence to
resume operation.

Because there is a possibility of losing control of the generated voltage through
malfunctioning of one of the several links in the control system, a fail-safe provision is pro-
vided through a tone-controlled contact in the running-contactor coil-control circuit. This
tone-controlled contact will open if there is any failure or intentional interruption in the

radio linkage.

3. SPECIFICATIONS

The original specifications were set up as a result of the engineering study.” Sub-
sequent conferences disclosed the desirability for making several modifications to the speci-
fications. The only major modification was an increase in the power output of the propulsion
system from 2 hp to 3 hp per channel. This was done to provide greater system flexibility

and in anticipation of greater power requirements for future models.

I-4

The following specifications have been condensed from the original and include all
pertinent subsequent changes. The weight of the total model-borne portion of the system
compares favorably with the requirements of the original specification. Some of the chassis
dimensions were increased but it was felt that this could be tolerated in the interest of

reduced manufacturing costs and increased accessibility for maintenance.

3.1 CONTROL AND POWERING CIRCUITS
3.1.1 Rudder Channel

Steering Controls
Preset — Port and starboard rudder angles of zero to 45 degrees preset on
multiturn dials plus a selector switch to be used by the operator to select either of these

preset angles or zero degrees.
Wheel — Continuous control 45—0—45 degrees.
Step — 5-degree steps, 45—0—45 degrees.

External Programming — An oscillator or function generator to be used to program

the motion of the rudder.

Rudder Servo

Input signal —
Radio control — 8—0—8 volts

Wire control* — 5000-ohm potentiometer, excitation voltage supplied
by the servo system.

Range — 50—0—50 degrees

Run-in Rate

Standard circuit — Approximately 56 degrees per second for step changes in

command signal, no-load.
Velocity stabilized circuit — 0—40 degrees per second, no-load.

Maximum running torque —
Standard circuit — 200 inch-pounds
Velocity stabilized circuit — 0—100 inch-pounds at 8—40 degrees per
second, 0—200 inch-pounds at 4—20 degrees per second.
Positioning accuracy —
Radio control — + 0.4 degree or better
Wire control — + 0.2 degree or better

Position error due to loading — less than 0.15 degree for 200 inch-pound
load change.

*The servo amplifier has been designed for use in either wire or radio-controlled systems.

1-5

3.1.2 Propulsion Channels (2 identical channels)
Type — Proportional control of voltage to series-wound propulsion motors.
Controls — Lever type, zero to full power, forward or reverse.

Output voltage — 0—150 or 0—300 volts for full range of control lever. (Range

switch in model equipment.)
Output current — 10 amperes maximum (rated).
Output power — 3000 watts maximum at low-duty cycle.

Stability — Hold selected output voltage to better than + 1 percent for (1) Battery
voltages between 1.3 volts per cell (full charge) and 0.8 volts per cell at end of run, (2)
Changes in load from half load to full load.

Propulsion motor reversing — Automatic with operation of control lever by

reversing armature connections.

Propulsion motors — Not supplied, 0—3 hp, 0—300 volts, series wound.

3.1.3 Model Powering Equipment

Motor-alternator — 115-volt 3-phase 750-volt-ampere output, 2-percent frequency

regulation, continuous duty.

Batteries — 10-ampere-hour and 40-ampere-hour nickel-cadmium batteries,

34 cells per unit.

Battery charger — Charging rate adjustable up to 300 amperes at 49 volts d. c.
Input — 3-phase 600 volts at 60 cycles or 3-phase 480 volts when used with auxiliary

autotransformer.

3.1.4 Spare Control Channel
Type — ON-OFF control through radio link.
Control — Toggle switch on power control panel.

Contacts — Single pole — double throw rated at 1 ampere at 24 volts d. c. or
115 volts a. c.

Operate time — 0.1 second maximum.

3.2 READOUT CIRCUITS
3.2.1 Rudder Channel

Rudder position (analog)
Range — 45—0-—45 degrees

1-6

Accuracy

Console indicator — + 1.5 percent of full scale

Current output — + 0.75 percent of full scale
Stability — Less than 0.25-degree drift per hour after warmup.

Output current — +1 milliampere into a 3000-ohm load.

Rudder position (digital)
Full equipment not furnished.
Range — 45—0—45 degrees

Accuracy
Console indicator — + 1.5 percent of full scale.

Pulse output — + 0.1 percent of full scale.
Output — Rectangular wave, 10 cycles per second per degree of rudder offset;
relay contact closure for indication of direction.
Rudder running time
Indicator — Resettable electric clock on console.

Accuracy — + 0.1 second.

3.2.2 Propulsion Channels (2 identical channels)

Console indicator

Range — 0—1500 or 0—3000 rpm

Accuracy — + 1.5 percent of full scale

Calibration — Internal with 60-cycle power line reference.

Output —
Type of circuit — Rectangular wave to drive digital counter.
Amplitude — 25 volts into 600-ohm load.
Frequency — 10 cycles per revolution of propulsion shaft.

Accuracy — May be measured to the nearest tenth of a revolution with
readings taken over any desired period of time.

3.2.3 Spare Data Channel

Frequency response — Depends on subcarrier channel used.

Accuracy —
Console indicator — + 1.5 percent of full scale
Output current — + 0.75 percent of full scale plus transducer errors.

I-7

Output current — +1 milliampere into a 3000-ohm load.

Stability — Less than 0.25 percent of full-scale drift per hour after warmup.

3.2.4 Spare ON-OFF Channel
Control — Contact closure in model.
Output — Relay contacts in console.

Contacts — Single pole — double throw rated at 1 ampere at 24 volts d.c. or

115 volts a.c.

Operate time — 0.1 second maximum.

3.3 RADIO LINKS

3.3.1 Transmitters
Type — Crystal-controlled, phase-modulated
Frequency range — 215-235 mc

Power output — 4.5 watts maximum.

3.3.2 Receivers
Type — Crystal-controlled, double-conversion superheterodyne
Frequency range — 215—235 mc
Sensitivity — 8 microvolts signal produces 20 db quieting.

Antennas — Omnidirectional, ground plane.

3.4 SIZES AND WEIGHTS OF MODEL EQUIPMENT

The following tables show the actual weight of complete typical systems and the

sizes and weights of individual components and cables.

1-8

TABLE 1

Total Weight of Model Equipment under Typical Operating Conditions*

Weight
Item Equipment s
No. ene | Ib
Leis 1 or 2 screws, small battery, with readout 292
2 1 or 2 screws, small battery, with readout, protective
covers removed 283
3 1 or 2 screws, small battery, without readout, protective
covers removed 261
— +
2 or 4 screws, large battery, with readout 477
2 or 4 screws, large battery, with readout, protective
covers removed 469
2 or 4 screws, large battery, without readout, protective
covers removed 443

*Weight of propulsion motors is not included.

TABLE 2

Power Input, Chassis Dimensions, and Weight of Model Components

Dimensions
Model Components inches

iL W H Ib 0z
Fir 0 CE Fe Eee te |r ee
Receiver uaz | 53/4 | ay/2 | 7
Receiver and Demodulator Power Unit
with cover
without cover
Demodulator Unit

1 propulsion channel
2° propulsion channels

Servo Amplifier
with cover
without cover

Servo Unit
with dynamometer adapter
without dynamometer adapter

Dynamometer Adapter for 2nd Rudder
Rudder Shaft Coupler
Error Regulator

Motor-Generator and Control Unit

Motor-Alternator and Control Unit

10-Ampere-Hour Battery

40-Ampere-Hour Battery
RPM Pickup (including cable)

Readout Unit
with cover
without cover

*Plus shaft and dynamometer.

1-9

TABLE 3

Weight and Length of Model Cables

Model Cables ace melsit
t [ep |

Antenna to Receiver or Transmitter
Receiver to Demodulator Rack
Power Unit to Receiver
Power Unit to Demodulator Rack
Demodulator Rack to Servo Amplifier
Servo Amplifier to Servo Unit

Demodulator Rack to Motor-Generator

Motor-Generator to Error Regulator

Motor-Generator to Propulsion Motor

Battery to Motor-Generator

Battery to Motor-Alternator
Demodulator Rack to Motor-Alternator
Servo Unit to Readout Unit (short)
Servo Unit to Readout Unit (long)
RPM Pickup to Readout Unit
115-Volt Line (3-phase)

115-Volt Line (1-phase)

Note 1 — Length and weight depend on model powering equipment.
Note 2 — Included in weight of motor-generator.

Note 3 — Included in weight of motor-alternator.

I-10

PART I! — SYSTEM DESIGN

1. DISCUSSION

This portion of the report describes the complete system in a functional breakdown.
The radio frequency and subcarrier portions of the system use standard telemetering com-
ponents for the proportional control and readout functions. Potentiometer-controlled subcarrier
oscillators are used for all proportional channels except the rpm readout channels which use
reactance-controlled oscillators. Miniature subcarrier discriminators* are used in the receiving
circuitry for separation of proportional signals. Low-frequency tone generators and detectors
of the electromechanical type are used for the remote control of all on-off functions such as
power control and propulsion motor reversing.

Power for all model equipment is furnished by nickel-cadmium batteries which may be
rapidly recharged between trial runs. The widely varying battery voltage is applied to a
governor-controlled motor-alternator which supplies 400-cycle instrumentation power and to
one or two motor-generators for control of propulsion power. The motor-alternator has reserve
capacity for powering gyros and other special model circuitry requiring 400-cycle power. The
battery-charging and power-control circuitry is arranged for simplified operation and the use
of a minimum amount of equipment in the model.

The basic readout circuitry included with the system is only enough to guide the operator
in controlling the model. Connections are provided for recording these data on external equip-
ment. One spare proportional data channel has been included for use in certain tests in which
it is desirable to initiate a new command when the model attains a specific rate of turn or
heading angle. Connections have been included for adding up to twelve additional subcarrier
data channels to the readout circuitry.

The 400-cycle power for the instrumentation in the model is rectified and regulated by
semiconductor circuitry. Power supplies for all console equipment operate on the 60-cycle

power lines and use vacuum tube regulators

2. RADIO-CONTROL AND TELEMETERING LINKS

Standard FM-PM telemetering equipment is used in the radio frequency and subcarrier
portions of the radio-control and data-readout system. The block diagrams of the control
equipment are shown in Figures 1 and 2. Figures 3 and 4 show the block diagrams of the

readout circuitry.

*The discriminators are called Demultiplexers by the manufactuer.

II-1

Proportional control or readout data are applied to potentiometer-controlled subcarrier
oscillators. Variation of the potentiometer slider causes frequency modulation of the sub-
carrier oscillator. For model equipment simplicity and increased readout accuracy, reactance-
controlled subcarrier oscillators are used in the rpm readout circuits (Figure 3). In this
application, soft iron slugs are used to vary the inductance of a tank circuit which in turn
controls the frequency of the subcarrier oscillator. Separate subcarrier oscillators and controls
are used for each channel of information. Standard IRIG* subcarrier frequencies are used with
band selection based on use of preferred bands and type of data to be transmitted. The fre-
quency range of 200 to 500 cycles per second is used for the on-off control tones. This re-
quires the elimination of IRIG subcarrier band No. 1 which has a center frequency of 400
cycles per second.

The control tones are generated by a group of resonant-reed oscillator-control units.
The resonant reed has a very high Q and good frequency stability which permits the use of
many channels within a small range of frequencies. Feedback power for driving the reed is
provided by a single-stage vacuum-tube amplifier. Because of their high-Q and long buildup
time, the oscillators are allowed to run continuously and their output is switched on or off
as required.

The outputs of the resonant-reed circuits are mixed in a resistance network and then
passed through a low-pass filter to remove harmonics. The filtered tones are then mixed
with the outputs of the subcarrier oscillators. In the control link (Figure 1), the mixing is
performed in an operational amplifier circuit which is capable of driving the transmitter
circuitry via the interconnecting cable in the console. In the model readout link (Figure 3),
the operational amplifier is replaced by a simple resistive mixing network which drives the
transmitter through a very short cable.

The transmitters are crystal-controlled, phase-modulated units and have a maximum
power output of 3.5 to 4.5 watts. Since full power is not required for this application, the
transmitters are operated at reduced plate voltage to extend tube life. Power output under
these conditions is about 2 watts.

Ground plane antennas are used for all transmitting and receiving circuits. These
antennas are small, lightweight, and omnidirectional, and provide proper impedance match
for the transmitters and receivers.

Miniature crystal-controlled FM receivers are used in both the control and readout
circuits. The receivers contain a plug-in RF section for channel selection, but have no
controls to be adjusted during operation. The output of the receivers is sufficient to drive
all subcarrier and tone-channel circuitry. The receivers have an automatic gain-control
circuit for operation over a wide range of signal levels. The AGC circuit output is also

used for control of external circuitry.

*Inter-Range Instrumentation Group.

II-2

The subcarrier channel signals are separated from the composite receiver output by
the frequency-selective input circuitry of the discriminators. Following stages of the discrim-
inators clip and demodulate the subcarrier signal and produce an output current or voltage pro-
portional to the signal applied to the subcarrier oscillator in the transmitting end of the radio
link. The discriminator is insensitive to variations in amplitude of the input signal, above
threshold, and responds only to frequency variations. Two controls, for balance and output
level, are provided in each discriminator in addition to a meter which indicates relative
amplitude of the output signal.

The low-frequency tone signals are separated from the composite receiver output signal
by a low-pass filter. The tone signals are then amplified and applied to a group of resonant-
reed relays. These relays are highly frequency-selective and are tuned to frequencies matching
the resonant-reed oscillator-control units in the transmitting end of the radio link. The con-
tacts on the resonant-reed relays close for only 5 percent of each cycle of their resonant fre-
quency and have limited current-carrying capabilities. These short contact closures are used
to charge a capacitor in the grid circuit of a vacuum tube amplifier. The plate circuit of the
amplifier contains a multi-contact relay which is capable of handling the currents required

by other sections of the control or readout instrumentation.
3. CONTROL EQUIPMENT

3.1 RUDDER CHANNEL

The rudder control system is designed to operate one or two rudders from a common
servo system. Three groups of rudder controls are included to handle various types of
maneuvering tests. The PRESET or STEP methods of control should be used when it is
desired that the rudder run into a new position at a constant velocity. The WHEEL control
will be most useful for random maneuvers and for adjustment of average course when an ex-
ternal programming signal is used. The servo system is designed to be used with the radio-
control link or in a cable-controlled system. It may be used as a simple proportional servo,
with a no-load run-in rate of about 56 degrees per second which is desirable for external pro-
gramming, or as a velocity-stabilized system with adjustable run-in rate. The servo unit
contains adjustable limit cams which reduce servo torque at any desired shaft positions.
Mechanical linkage is provided for coupling a second rudder shaft to the servo unit. An adapter
plate and two bearing assemblies are included for using existing rudder-force dynamometers
on one or two shafts.

All console rudder controls are mounted on the left panel of the console, Figure 5.
Type of control is selected by the switch on the left side of the panel. The first type of con-
trol is PRESET. In this mode of operation the three controls at the top of the panel are used.
The multiturn potentiometers are calibrated directly in degrees and may be set for any desired

Port and Starboard rudder angles. The selector switch at the top center of the panel may

II-3

then be used to switch to either PRESET position or to a position of zero rudder angle, The
second type of control is WHEEL which allows the operator to select any desired rudder posi-
tion by means of a single knob at the lower, center portion of the control panel. The third
type of operation is STEP control. When this control is used, the operator may position the
rudder servo in 5-degree steps covering a total range of 90 degrees. Further versatility may
be had by presetting groups of controls and then using the SELECTOR switch to change from
one group of controls to another.

The control circuitry is arranged for programming the rudder from an external signal
source, such as a Hewlett-Packard Low Frequency Generator Model 202A or equivalent. The
only restrictions are that this input be isolated from ground, have a low impedance, and not
have a large d-c component. Square, triangular, or sinusoidal rudder motions may be simply
generated in this fashion. Servo followage will be limited by the frequency and amplitude of
the applied signal and servo loading.

The output of these control circuits is used to drive the subcarrier and RF circuitry of
the rudder control portions of the radio-control link. In the model, the output of the rudder-
channel discriminator is applied to the servo amplifier input.

The rudder servo system is of special design to meet the requirements of model testing.
It may be controlled by the radio link or cable control. When radio control is used, the external
control voltage is compared to the output of the feed-back potentiometer k,, Figure 6. When
the cable-control circuit is used, the d-c reference within the servo system is applied to both
the feedback and the external control potentiometers. For either method of control, the control
and feedback signals are mixed in the first summing network A,.

Switch S, changes the system from standard proportional control to velocity-stabilized
proportional control. The switch is shown in the position for standard control. Any difference
signal produced by the summing network is converted to an a-c signal at line frequency by the
modulator stage before amplification. Several stages of vacuum tube amplification are used
ahead of a commercial transistor preamplifier and magnetic output stage which drives the
servo motor. The tachometer generator is direct-coupled to the motor and a portion of its
output is applied to the second summing network A, and used for damping. The gearbox has
a reduction of about 1000 to 1 which provides a no-load output speed of about 56 degrees per
second as shown in Figure 7.

Velocity-stabilized operation requires the additional circuitry shown within the dashed
line of Figure 6. Circuit changeover is performed by switch S,. Part of the output of the first
stage of amplification is applied to a phase-sensitive detector and polarized relay. Detector
sensitivity is adjusted so that the relay contacts close as soon as there is a difference of
1 degree between the actual servo position and the commanded position. Transformer 7, and
Potentiometer F, furnish an adjustable 400-cycle reference voltage for the velocity-
stabilizing circuit which is compared to the tachometer output when the relay contacts are

closed. The proportional control signal applied to the summing network A, is reduced by the

Il-4

ratio of Resistor F, to the output impedance of the 7,—F, reference circuit. In this condition
the tachometer output is compared to the preset reference voltage, and the motor drive is auto-
matically adjusted to maintain the preselected velocity. Changes in servo loading affect the
tachometer output, and appropriate compensation is performed by the feedback loop. When the
servo is within 1 degree of the command position, the polarized relay returns to its central
position. The velocity-reference signal is removed and the proportional control signal restored.
A damping signal of appropriate amplitude is applied through &,. With proper adjustment of the
damping signal, the servo will run-in to a preselected position with negligible undershoot or
overshoot. The speed-load curve for several velocity settings is shown in Figure 7. Velocity

control setting versus speed is shown in Figure 8.

3.2 PROPULSION-CONTROL CHANNELS

The radio-control system contains two separate propulsion-control channels. Either
channel may be used separately, or both may be used simultaneously. Propulsion power and
direction of motor rotation are remotely controlled by levers on the console. Propulsion-motor
voltage is approximately linearly proportional to lever position. Power for the propulsion
motors is obtained from motor generators driven by a storage battery as described in the follow-
ing section on Power and Power-Control Equipment. Motor-generator output voltage is con-
trolled and regulated by an error regulator which amplifies a low-level error signal to a level
capable of driving the field of the generator. The propulsion system is designed for use with
series-wound d-c motors requiring 3 kilowatts or less. Propulsion motors are reversed by
reversing connections to the motor armature. One or more propulsion motors may be used on
each motor-generator as long as the maximum current output of 10 amperes is not exceeded.

Propulsion-motor speed and direction are remotely controlled by subcarrier and tone
channels. The propulsion levers control tapped potentiometers and microswitches. The
potentiometers control the frequency of subcarrier oscillators and are arranged so that the
full dynamic range of the subcarrier circuit is used for either the forward or reverse condition.
The microswitches control relays which turn tones on or off depending upon the direction of
motor rotation desired. Four tone frequencies handle all possible conditions of propulsion-
motor control in addition to the fail-safe circuitry described in the following section. When
tone ‘‘A’’ is on, both propulsion motors are connected for forward operation. If tone ‘‘B’’ is
on, only the port motor is reversed, or if tone ‘‘C’’ is on, only the starboard motor is reversed.
Tone ‘‘D’’ reverses both motors. These propulsion-control signals are combined with the other
control signals and transmitted over thé common radio-control link. The propulsion discrim-
inator (s) and tone detectors in the model separate the propulsion-channel data from the
composite-control signal. The output of each discriminator is applied to an error regulator .

which controls and regulates motor-generator output voltage.

3.3 FAIL-SAFE CIRCUIT

The fail-safe circuit is included to insure against loss of control of the model power
due to failure of control circuit equipment or signal dropout due to multipath reflections.

A switch on the propulsion-control panel marked POWER AND FAIL-SAFE may be used
at any time to cut off all model power. This switch controls the power to relays which control
the outputs of the tone oscillators used for controlling the direction of rotation of the propulsion
motors. The tones are transmitted to the model via the common radio link.

Two sections of the model equipment contribute to the fail-safe circuitry. The automatic
gain-control voltage of the receiver is used to hold a relay latch. Loss of RF signal due to
either transmitter or receiver failure, or signal loss due to signal cancellation by multipath
reflections causes a relay contact to short out the input to the tone detector circuitry. The
tone detector circuitry is arranged so that any one of the four tones must be on to hold the
fail-safe relay closed. This relay is then used in latching circuits for the motor-alternator
and motor-generator units which are described in the following section of this report. All
latching circuits are arranged so that once the command signal has been removed or lost, it is

impossible to restart the equipment without the use of the alternator and generator starting unit.

3.4 SPARE TONE CHANNEL

A spare tone channel has been included in the control circuitry to provide remote
operation of relay-controlled circuits. This can be used for operation of calibration circuitry
or other special equipment. The capabilities of this channel can be easily expanded by in-
corporating a stepping type of switch in the model.

A switch and pilot light are mounted on the power control panel of the console. When
the switch is turned on, a tone is transmitted over the radio link which operates a relay in the
model equipment. The opening or closure of these relay contacts may be used to control any

desired function.
4. POWER AND POWER-CONTROL EQUIPMENT

4.1 GENERAL

The selection of the equipment was made after considerable searching, comparing, and
conferring. Some components are production items, others are modified stock items, and a few
are special designs. The primary consideration in the acquisition of the model-borne equip-
ment was minimum weight. The motor-generator sets, the alternator sets, and the 10-ampere-

hour batteries were specially designed for the minimum-weight application.

4.2 BATTERIES

Three nickel-cadmium batteries are provided: two 10-ampere-hour batteries (one spare)
for minimum-weight tests and one 40-ampere-hour battery for use when two motor-generator sets
are required in the model. The batteries are of sintered-plate construction which permits the
high-current rates required. Each battery has 34 cells and an open-circuit terminal voltage
of 44.2 volts when fully charged. The internal voltage drop reduces the terminal voltage to
36 to 38 volts under load. Each battery is large enough so that no more than 50 percent of its
capacity is consumed during a test run. However, as the batteries age, their capacity dimin-

ishes and replacement is necessary when one-half capacity is reached.

4.3 MOTOR-GENERATOR SETS

The motor-generator sets were specially designed to incorporate 3 kilowatts into as
compact and as light a piece of equipment as possible within the limits of good design stand-
ards. The set is composed of a 36-volt, 150-ampere, 7600-rpm, d-c shunt motor driving an
intermittently rated 3-kilowatt, 0-300-volt, separately excited d-c generator. The motor is
capable of withstanding the 49 volts which is applied by the battery charger during charging
operations. The generator output is continuously variable from zero to 300 volts and is con-
trolled by the error regulator which supplies the generator field. The generator, which can
deliver a current of 10 amperes, feeds through a reversing relay to a series motor for propulsion.

The 3-kilowatt rating is based on the following duty cycle:

kw for 2 minutes; noload, 10 minutes
kw for 2 minutes; noload, 10 minutes
kw for 2 minutes; noload, 10 minutes
kw for 2 minutes; noload, 10 minutes
kw for 2 minutes; noload, 10 minutes

co ae ee
& 0 Com

Other duty cycles may be used provided the motor-generators are not allowed to overheat.

A resistance temperature detector (RTD) unit is imbedded in the motor field and con-
nected to a bridge circuit. A small meter shows the field temperature in degrees Centigrade
divided by 100.

If the meter approaches full scale, the motor-generator set should be allowed to cool
off before proceeding with model tests. The maximum cooling rate will be obtained by. allow-

ing the motor-generator to run without load.

4.4 ERROR REGULATOR

The error regulator is a feedback device which regulates motor-generator output by
control of field current. As shown in the block diagram (Figure 9), the control signal and a
portion of the generator output are compared in the magnetic modulator which has two isolated
inputs. A regulated d-c internal reference is resistively mixed with the generator output. The

signals applied to the modulator are mixed in the magnetic circuit and produce an output at

II-7

powerline frequency which is proportional to the difference between the command signal and
the generator output. The resulting error signal is rectified in a phase-sensitive demodulator
and then passed through a d-c amplifier. Power level is increased to a maximum of 30 watts
which is sufficient to drive the generator to full output. Transient response of the regulator

is improved by the lead network in the feedback loop which provides a damping factor of

about 0.6. Full-scale output voltage may be set for either 150 or 300 volts by the range switch
which controls feedback signal and amplifier gain. Amplifier gain is sufficient to hold the
generator output to within + 1 percent of the command setting for changes in load or battery

voltage.

4.5 MOTOR ALTERNATOR

Power for the error regulator and all electronic instruments is supplied by the motor-
alternator set. This specially-designed set consists of a 36 volt, 12,000-rpm, d-c shunt motor
driving a 115-volt, 400-cps, 3-phase, 750-watt alternator. A governor on the motor maintains
the speed constant within 2 percent. The duty cycle of the alternator set is continuous. The
motor can withstand the 49 volts which is applied by the battery charger during charging

operations between runs.

4.6 BATTERY CHARGER

The battery charger requires a 3-phase, 600-volt source capable of delivering 20 amperes
of current and it can deliver up to 300 amperes at 49 volts d. c. The charger is capable of
quick-charging the 40-ampere-hour battery at a 200-ampere rate while simultaneously supplying
power to a motor-alternator set and two motor-generator sets. The charger is fan-cooled and
consists of three single-phase, tapped-primary transformers feeding a 3-phase bridge selenium
rectifier. The charger features a timing relay adjustable from zero to 8 hours which automati-
cally turns the charger off at the end of a preset charging period. The timing cycle starts when
the charging rate switches from the high rate to the low rate. A 10-kva, 3-phase, 480/600-volt
autotransformer is provided to enable operation of the 600-volt charger from a 480-volt supply.

4.7 STARTING EQUIPMENT

Reduced-voltage starting of the motor-alternator and motor-generator sets is accom-
plished by inserting additional resistance in the armature circuit of the motors. These re-
sistors are automatically cut out of the circuit by time-delay relays which short them out at
preset time intervals. The running contactor in the model is the final shorting step and when
it pulls in and seals, the starting cable may be disconnected from the model after the STOP
button is pushed. The START-STOP pushbutton station, the resistors, and the time-delay

relays are mounted on the battery charger.

II-8

5. READOUT EQUIPMENT

A limited amount of data readout equipment has been included in the radio-control
system. This is to guide the console operator in maneuvering the model and to supply a
continuous check on proper behavior of the control circuitry. The system is designed so that
the telemetering link may be expanded in the event that additional analog data channels are
required.

The system includes circuitry for console indication and external recording of rudder
position, two channels of propulsion shaft rpm, and one spare data channel. The running
time of the rudder servo is indicated on a clock on the console. One spare ON-OFF tone
channel is also included for operation of auxiliary equipment. All readout circuitry is arranged

so that the data may be recorded on equipment currently in use at the Model Basin.

5.1 RUDDER CHANNEL
5.1.1 Rudder Position

The rudder servo unit contains a 5000-ohm center-tapped potentiometer which is
coupled directly to the output shaft of the servo. The readout circuitry is arranged so that

either analog or digital data transmission may be used.

5.1.1.1 Analog Readout. The analog method, for which all equipment is furnished,
is a simple subcarrier circuit. The potentiometer is used to control the frequency of a sub-
carrier oscillator. This signal is mixed with other subcarrier signals and is transmitted over
a common radio-frequency link. The signal is received at the console and separated from the
other subcarrier signals by the rudder channel discriminator. The output of the discriminator is
connected to the RUDDER ANGLE meter on the console panel and to a connector for operation

of an external recorder requiring + 1.0 milliampere or less.

5.1.1.2 Digital Readout. The second method of rudder position readout is for use
when greater accuracy and elimination of telemetering system drift is mandatory. In this
system, rudder position data is converted to digital form in the model, thereby eliminating the
effects of drift and nonlinearity in the telemetering link. All equipment is furnished for this
system except the analog-to-digital converter. In the system recommended in the original
specification,? a velocity-controlled servo would generate a train of rectangular waves with
the rate proportional to the displacement of the rudder shaft potentiometer from the 0-degree
position. The output frequency would be 5 cycles per second per degree of rudder offset. An
alternate system would be to use a very accurate voltage-to-frequency converter similar to the
Dymec Inc. Model DY-2210 with the output rate reduced to the aforementioned value. The
output of either of these systems would be used to modulate a voltage-controlled subcarrier

oscillator. A microswitch mounted on the rudder servo unit turns a tone channel ON or OFF

II-9

depending upon the direction of rudder shaft displacement from zero. Both signals would be
mixed with other readout data and transmitted over the common radio link.

The console contains all circuitry for using this type of rudder position readout. The
output of the rudder channel discriminator is used to drive a squaring and frequency-doubling
circuit. The output of this circuit may be used to drive an external digital indicator and re-
cording system with rudder position displayed to the nearest tenth of a degree. The tone
circuitry would be used to operate a port-starboard indicator or marker. Standard digital
events-per-unit-time meters and recorders may be operated from this circuitry.

For console indication the output of the squaring and frequency-doubler circuit is used
to drive a pulse-rate-to-current converter. The output of the converter is applied to the
RUDDER ANGLE indicator. Meter polarity is automatically reversed by the tone circuitry as

the rudder is moved from port to starboard positions.

5.1.2 Rudder Running Time

The rudder running-time circuit control signal is obtained from the output of the
tachometer generator in the servo system. The output of the tachometer is applied to. an
amplifier which drives a sensitive relay. A gain control in the amplifier is used to select the
velocity at which relay operation takes place. One set of relay contacts is brought out to a
connector on the model-borne readout unit for control of lamps used when the model ships are
tracked photographically. Another set of contacts is used to turn a tone ON which is trans-
mitted to shore over the common radio link.

In the console, a tone detector circuit separates the running-time signal from the
other tones and operates a relay which controls current to the clutch of an electric clock
mounted on the rudder control panel.

The overall accuracy of this system is somewhat limited because of the number of
electromechanical delays. Accuracy is also affected by the run-in rate of the servo and the
setting of the amplifier gain control. However, under most conditions, rudder running time

will be indicated to within 0.1 second or better.

5.2 RPM CIRCUITS

The two channels of propulsion shaft rpm circuitry are of nonstandard design in
order to achieve a higher degree of accuracy and stability than is possible by the standard
FM-PM telemetering technique. Both channels are identical except for choice of subcarrier
frequency.

The rpm pickup consists of a small aluminum wheel with five soft iron inserts and an
E-core pickup mounted in a yoke attached to the shaft of the wheel by ball bearings. The
shaft is hollow and designed to clamp onto an intermediate 5/16-inch-diameter propulsion shaft.
The yoke is fastened to the model hull by a thin strap and holds the E-core coil at a fixed

distance from the surface of the wheel.

I-10

The coil of the E-core assembly is connected to a reactance-controlled subcarrier
oscillator. The coil and capacitors within the oscillator unit form the tank circuit of an
oscillator. As the wheel is rotated, the inductance is varied, causing a change in subcarrier
frequency. The subcarrier output is then mixed with the other subcarrier signals and trans-
mitted to the console where it is separated from other readout data by the discriminator.

The discriminator output is a variable low-frequency voltage whose frequency is pro-
portional to shaft rpm. The signal frequency is doubled and then shaped into a rectangular
wave. The output of the shaping circuit may then be used to drive an external indicating-
recording system such as the TMB Revolutions-Speed-Time Recorder Type 223 or a standard
events-per-unit-time indicator and recorder.

The output of the pulse shaper is also used to drive a pulse-rate-to-current converter
stage where current output is proportional to pulse-input rate to an accuracy of better than
1 percent. This current is used to drive the rpm meter on the console. Full-scale ranges
0—1500 or 0—3000 rpm for both channels may be selected by a switch on the propulsion

control panel.

5.3 SPARE ANALOG CIRCUIT

A spare analog circuit is included in the telemetering link. The spare receptacle in
the readout unit is wired for an Electro-Mechanical Research Model 94 potentiometer-controlled
subcarrier oscillator. The console end of the link is wired for a spare Tele-Dynamics, Inc.
Type 2201C Demultiplexer.* The output is connected to the 1-0-1 milliampere meter on the
console marked SPARE, and also to an output connector which can supply + 1.0 milliampere

to an external load.

5.4 SPARE TONE CIRCUIT

Connections are included in the readout unit for a spare tone channel. The circuit is
operated in the model by the closing of external contacts which turn on the tone. It is relayed
to shore via the telemetering link and is there used to operate a set of single-pole double-
throw relay contacts which are available at a connector on the console. System response time

is limited to about 0.1 second by the operating time of the relays and tone detector circuitry.
6. POWER SUPPLIES

6.1 CONSOLE EQUIPMENT

The power supplies for all console equipment are mounted in two chassis at the rear

of the console. Power supplies for all control circuitry are constructed in the smaller chassis

*Trade name for discriminator.

Il-11

and for all readout circuitry in the larger chassis. All power switches and line fuses are
mounted on the power control panel. Plate power for all equipment is regulated by vacuum
tube circuitry. Regulators are of standard TMB design with regulation for changes in line
voltage or load. A switch panel and test set, located under the power control panel, provide

a quick check on all console power supplies.

6.2 MODEL EQUIPMENT

All primary instrumentation power is supplied by the 400-cycle motor-alternator. The
a-c power is applied to the individual units of the model equipment which have self-contained
or separate power supplies. All major power supplies are commercial transistor-regulated
units. The transistor-regulated supplies contain quick-blow internal-circuit fuses in addition
to the panel fuses which are in the main line. Panel test points are provided for all regulated
supplies to facilitate rapid location of defective units. The servo amplifier and error regulators

have self-contained power supplies with silicon rectifiers and zener diode regulation.

7. CONCLUSIONS

The complete system has been tested in the laboratory and in several model ships.
Individual sections of the system have undergone extensive laboratory tests and calibrations.
The telemetering equipment has performed according to the manufacturer’s specifications as
to linearity and stability. The special equipment such as the rudder servo, the powering
equipment, and the special readout circuitry have performed as originally specified. The
speed-load curves for the rudder servo in both modes of operation are shown in Figure 7. The
servo was also checked with a programmed input, and servo followage was good up to the
load-velocity limitations of the system.

The propulsion powering system was checked with resistive loads and with motor loads
in free-running and moored models. The motors used were 220-volt, 1/2-hp units, and were
operated in normal and overload conditions. Complete tests with motors at full power were
impossible since 3-hp motors and suitable dynamometers were not available. Motor drive
voltage and model speed were checked during several straight runs at moderate speed on a
single charge of the battery. Motor voltage held to better than 1 percent of the command value
until the test was terminated when the battery charge was down to 0.8 volts per cell. Change
in model speed was negligible and could probably be attributed to the effects of motor heating
which are not compensated for in the feedback loop of the powering system.

The performance of the radio frequency equipment at an RF output of about 2 watts was
satisfactory for all model tests. The model was operated in the J-shaped turning basin with
the control console located either on the towing carriage or at various points around the basin.
The antennas were strapped to the carriage members or fastened to wooden pedestals when

used on shore; they were placed at least 10 feet apart but no other precautions as to location

I-12

were taken. The model was operated at distances of from 10 feet to over 650 feet away from
the console equipment. Control and readout communications were maintained throughout the
range except in several instances when several observers intercepted the line-of-sight RF
path. In these instances, the power to all model equipment was turned off by the fail-safe

circuitry. There was no noticeable loss of signal due to multipath reflections.

8. RECOMMENDATIONS

The design of the system is based on the use of modular components for both the
console and the model equipment. Many portions of the system use vacuum-tube circuitry
because transistorized equipment of equivalent electrical characteristics was not available
when the design was in progress and material was being ordered. It will be possible to replace
these components with similar transistorized items of superior characteristics as new equip-
ment becomes available.

Transistorized subcarrier oscillators with better linearity than those used in the
system are just becoming available. Transistorized subcarrier discriminators with specifica-
tions similar to those used in the present system are also available. Substitution of these
components in the model equipment would result in a small reduction of weight and power
consumption. It is possible that in a few years even greater improvements will be made in
this type of equipment.

If smaller receivers and subcarrier discriminators become available it should be
possible to use the present console equipment to operate a completely new set of model
equipment which would be suitable for use in 10- to 15-foot models. Since the propulsion
requirements would be considerably less for this application, a much lighter battery and
simpler propulsion motor and rudder control circuitry could be used.

Solid state inverters are now available which meet or exceed the electrical specifica-
tions of the motor-alternator used in the system with the exception of range of input voltage.
It is believed that this could be taken care of with slight modification.

Solid state power converters are presently being manufactured at ratings up to
5 kilowatts and it may be possible in the near future to replace the motor-generators and
error regulators of the present system with units of greater efficiency and lower weight.
Other advantages gained by the replacement of the rotary equipment would be the elimination
of gyroscopic effects and noise. Some reduction in maintenance might be achieved.

Some modifications and additions which could be made to the existing equipment would
result in improved performance. It now seems highly desirable to add an adjustable current-
limiting circuit to the error regulators for the motor-generators. This would eliminate the
need for fuses in the output of the motor-generator and also prevent the application of large
momentary overloads to the propulsion motors.

It may also be highly desirable to provide some method for obtaining a good impedance

match between the motor-generators and the model propellers. This could be accomplished

II-13

by using a greater assortment of motors and propellers or by the use of an intermediate speed
changer. Final determination should be based on both a hydrodynamic and an electrical

evaluation of requirements.

9. ACKNOWLEDGMENTS

The radio-control system was designed by members of the engineering divisions of the
Industrial Department. The final system requirements were the result of conferences between
Mr. W.F. Brownell, Mr. S.C. Gover, and Mr. F.D. Bradley of the Hydromechanics Laboratory;
Mr. H.E. Prucha and Mr. P.M. Douglass, Jr. of the Facilities Division; and Mr. W.S. Campbell
and the author of the Instrumentation Division.

The control-system design was done by the author with many valuable suggestions con-
tributed by Mr. Campbell, both of the Instrumentation Division. Design of the powering and
propulsion equipment was handled by Mr. Douglass and Mr. R.C. Goodson of the Facilities
Division. Mr. Stern of the Instrumentation Division designed the mechanical portions of the
rudder servo system.

Mr. Goodson also participated in the final system checkout and prepared the sections

of this report which concern the powering and propulsion equipment.

PART Ill — INSTALLATION AND OPERATION

1. INSTALLATION

1.1 SHORE EQUIPMENT >

The ‘‘Shore Equipment’’ has been designed for use either on the towing carriage or for a
fixed installation in one of the testing areas of the Model Basin. All shore equipment may be
located in a group or, if desired, the battery charger may be located at a convenient point near
the water, and all other equipment at a position allowing an unobstructed view of the maneuver-

ing area.

1.1.1 Console and Antennas

The console should be positioned so that the operator will be able to view the model
maneuvers over the top of the console. This will permit the operator to watch the model and
the console indicators much as the dash panel instruments of an automobile are observed
while driving.

The transmitting and receiving antennas should be vertically mounted with a spacing of
10 feet or more between antennas and positioned so that metal objects or personnel will not
intercept the path between the shore-based antennas and those on the model. The cables
between the console and the antennas should be of Type RG-58/U in order to maintain proper
impedance matching. The length of these cables is not critical; however, it is desirable that
their length not exceed 25 feet because of the high cable losses at the operating frequency.
NOTE: Transmitter power should never be turned on unless the transmitting antenna is
connected.

Two power input connectors are mounted in the base of the main pedestal of the console.
The 60-cycle power for all electronic circuitry should be regulated to 145 volts + 5 volts and
connected to the left input connector; see Figure 10. Maximum regulated power required is
600 watts. The other power input connector should be connected to an unregulated 115-volt
60-cycle power line that is always turned ON. This supplies power to the console cooling,
heating, and illumination circuitry. The heaters are turned ON whenever the OPERATE
STANDBY switch is in the standby position. This is to prevent the accumulation of moisture
within the console when used in areas of high relative humidity.” Unregulated power is
available at the fused outlet on the front of the console and may be used for the operation of
test equipment or a soldering iron. The maximum unregulated power requirement for the

console equipment is 100 watts.

III-1

1.1.2 Battery Charger

The battery charger should be located at a position allowing convenient access to
the battery and the motor-generator and motor-alternator connectors of the model equipment.
The charging and starting cables are approximately 20 feet long. The charger is designed for
use on a 3-phase 600-volt power line. The maximum power requirement is approximately
20 kilowatts. An auxiliary transformer is provided for operating the charger from 480 volt lines.
The starting circuitry for the motor-alternator and motor-generator requires 115 volts at

approximately 100 watts.

1.2 MODEL EQUIPMENT

The model equipment is composed of a group of small units which may be distributed
about the model to obtain approximate model trim. Cable lengths have been arranged to permit
considerable shifting of units when arranged in the following manner: The receiving antenna
and receiver should be placed near the bow. These should be followed by the receiver and
demodulator power unit and then the demodulator rack. The battery, the motor-alternator, and
one or two motor-generators should be centrally located to permit the use of short leads in the
high-current circuitry. The error regulator (s) may be mounted anywhere within cable range of
the motor-generator(s). Location of the propulsion motor (s) will normally be determined by the
position of the propulsion shaft(s). The RPM pickup(s) should be mounted on the intermediate
propulsion shaft near the readout unit. The readout unit should normally be near the rear center
of the model and may be placed above or between the propulsion shafts. The servo amplifier
should be placed near the rear of the model and the servo unit placed directly over the rudder
shaft. The transmitting antenna should be located as close to the stern of the model as
possible and slightly higher than the rudder servo.

All chassis should be securely fastened to the model and placed at least 1 inch above
the bottom to prevent water damage. If the model is to be used in rough water tests, splash
protection is required.

Shock mounts are Provided for the motor-alternator and motor-generator units and should
always be used to prevent transmission of vibration to the model and the electronic circuitry.

The rudder servo may be used with or without the dynamometer attachments and may be
used to control one or two rudders. When two rudders are used, the servo unit should be con-
nected to the port rudder with the starboard rudder connected to the servo by the parallelogram-
type linkage. NOTE: The zero rudder position should be set by shifting rudder shaft position
or servo unit mounting position, but not by adjustment of shafts or gears within the servo unit.

The weights of the model equipment units are shown in Table 2. The demodulator rack
has spaces for two propulsion channel discriminators. When only one motor-generator is used,
the discriminator for the unused channel may be removed and a blank panel substituted. The
protective covers for several of the chassis may be removed where weight limits are extremely

critical. The weights of typical systems, including cables, are listed in Table 1.

Ill-2

The model equipment should be connected as shown in Figure 11. The numbers shown
in circles represent cable numbers. The length and weight of the cables are shown in Table 3.
All multiconductor cable connectors are polarized to prevent improper interunit connections.

The motor-generator (s) should be fused according to the ratings of the propulsion motors
to be used. Fuses should be of the slow blow type with the rating not exceeding 10 amperes.
See Figure 49 for location.

Connections to the output of the motor-alternator are not shown in Figure 11 because the
alternator has a 3-phase output and the load must be equally distributed between phases. The
output connectors are arranged in three longitudinal rows of three connectors each, with one
row per phase. The three end connectors are for 3-phase loads or special single-phase loads,
such as the rudder servo, where it is desired that the load operate on a phase having a partic-
ular lead at ground potential. Power input requirements for the model equipment are listed in
Table 2. Additional equipment, such as gyros or tracking lights, should be considered when

distributing the load. A reference chart for typical installation is posted in the console.

1.3 AUXILIARY EQUIPMENT

The radio control and readout system contains circuitry which may be used in conjunction
with other instrumentation now in use at the Model Basin. This section of the report is in-

tended to serve as a guide to the proper installation and use of such equipment.

1.3.1 Control Equipment

1.3.1.1 Rudder Programming. The connector on the console marked program input
permits a low-frequency function generator, such as the Hewlett-Packard Model 202A, to be
used to apply repetitive signals to the rudder servo. This input may be of any wave shape;
however, servo followage will depend on the frequency, wave shape, and amplitude of the
applied signal.

The signal should be applied to the AN-3102-14S-7S connector. Pin A is the chassis
ground connection, and pins B and C are for the signal input circuit which is about 150 volts
above ground.

Any of the rudder-control methods may be used for setting initial rudder position after
the function generator has been adjusted for zero direct-current output. Frequency, amplitude,

and type of rudder motion may be adjusted by the controls on the function generator.

1.3.1.2 Spare Tone Circuit. This tone circuit is controlled by the SPARE TONE
switch on the power control panel of the console. This actuates a relay in the tone detector
unit. Single-pole double-throw contact terminals are available at the SPARE TONE connector
Type AN 3102-10S-3P on the demodulator rack. Pin B is connected to the arm of the relay and

pins A and C are connected to the normally open and closed contacts.

III-3

1.3.1.3 Modulation Output. The modulating signal, applied to the control circuit
transmitter, is available at a UG-291B/U connector in the console. This may be used for re-

cording the modulation signal applied to the transmitter.

1.3.2 Readout Equipment

1.3.2.1 Rudder Channel. An analog current or voltage, proportional to rudder

position, is available for external recording at the console connector marked Analog Rudder.
Terminal A of the AN 3102-14S-1S connector is chassis ground, and terminals B and C are the
differential signal output which is about 45 volts positive with respect to ground. This output
is in parallel with the meter on the console so any external load should be of constant imped-
ance and draw 1 milliampere or less. Maximum output voltage is about +3 volts. The console
meter may be recalibrated by use of the centering and sensitivity controls on the discriminator,
but separate calibration circuitry must be used for the external equipment.

If an analog-to-digital converter is used in the model as described in Section II, 5.1.1.2,
a digital output may be obtained from the Cannon Type XL-3-14 connector marked Rudder Angle.
Pin 1 is ground, pin 2 is the pulse output, and pins 1 and 8 are connected to a relay which may
be used to control a port-starboard marker. The pulse output may be connected to any standard
events-per-unit-time meter. Peak pulse amplitude is approximately 25 volts into a 600-ohm load.

Pulse output rate is 10 pulses-per-second-per-degree of rudder offset.

1.3.2.2 Propulsion Shaft Rpm. A pair of Cannon XL-3-14 connectors are provided
for accurately indicating or recording propulsion shaft rpm on digital equipment. Pin 1 is
ground, and pin 2 is the pulse output. Pulse amplitude is about 25 volts peak into a 600-ohm
load, and repetition frequency is 10 pulses per revolution. The output of these circuits may be
used to drive the TMB Revolution-Speed-Time Recorder Type 223, which automatically prints
out rpm on a Clary Printer. Standard commercial events-per-unit-time meters and printers may

also be used.

1.3.2.3 Spare Analog Channel. The connections to and use of the spare analog
channel are the same as for the analog rudder circuit. Output is obtained from the connector

marked Spare Channel.

1.3.2.4 Receiver Output. The receiver output, of the model-to-console data link,
is available at a UG-291B/U connector on the console. This may be used for recording the
composite readout data on tape. It may also be used for driving additional discriminators if

more readout channels are added to the readout system.

1.3.2.5 Spare Tone Circuit. A spare tone circuit is included in the model-to-shore

data link. The tone circuit may be energized by connecting switch contacts to terminals A

Ill-4

and B of the AN 3102-12S-3S connector on the readout unit marked Spare Tone. The output of
the circuit is available at terminals of the AN 3102-14S-5P connector marked Spare Tone Con-
tacts on the console. Pin A is connected to the arm of the single-pole double-throw relay and
pins B and C to the other contacts. The contact rating is 1 ampere at 24 volts d. c. or 115

volts a. c.

1.3.2.6 Modulation Input. The readout unit of the model equipment has a modula-
tion input connector which may be used for mixing the outputs of additional subcarrier channels
with those in the existing readout system. A readjustment of the modulation schedule will be

required to prevent overmodulation of the transmitter.

1.3.2.7 Tracking Lamp Control. The rudder running-time circuitry of the readout
unit contains a relay which is energized only when the rudder servo is running. A spare set
of single-pole double-throw contacts is connected to the tracking lamp connector on the unit.
Pin B is connected to the arm of the relay and pins A and C to the other contacts. The

contact rating is 1 ampere at 24 volts d. c. or 115 volts a. c.

1.3.3 Intercommunications System

The meter panel of the console contains a permanent magnet speaker which may be
used as a speaker or microphone in a conventional push-to-talk multistation system. Change-
over from listen to talk is controlled by a treadle-type switch on the console footrest. Con-
nections are made via an AN 3102-14S-6P connector on the treadle switch. Pins A and B

connect to the ‘‘talk’’ circuit and pins C and D to the ‘“‘listen”’ circuit.

2. OPERATION
2.1 STARTING PROCEDURE

Shore — 1. Check all power, antenna, and readout cable connections.
2. Place all POWER switches on the console in the OFF position.

3. Switches for the panel meters are located on the rear of the control and
readout unit. Place switches for unused channels in the OFF position.
See Figure 18. An ON-OFF switch for the rudder running time indicator
is located on the deck of the control and readout unit. See Figure 19.
Place in the OFF position if running time circuit is not to be used.

4. Place OPERATE-STANDBY switch in the OPERATE position.

5. Check voltage of regulated line on panel voltmeter. Voltage should
not exceed 120 volts.

6. Turn READOUT and OSC POWER switches ON.

Model — 1. Place switch on the alternator in the OFF position.

2. Place all other power switches on model equipment in the ON position.

III-5

3. Check all cable connections and connect alternator and
motor-generator set(s) to battery. Observe polarity.

4. Set switch on error regulator (s) to desired output voltage range.

5. Set the CIRCUIT SELECTOR switch on servo amplifier to
desired mode of operation. If automatic velocity control is
used, set VELOCITY CONTROL for desired rudder rate
according to graph, Figure 8.

6. Connect battery charger cable to battery. DO NOT turn —
charger ON. CAUTION: Do not operate charger with lower
front panel removed.

7. Connect starting cable to alternator.

Shore — 1. Turn TRANSMITTER and POWER and FAIL-SAFE switches ON.
2. Press START button on top of battery charger.

Model — 1. Wait five seconds for alternator speed to stabilize. Turn
ALTERNATOR POWER switch ON.

2. Wait 30 seconds for warmup of control equipment. At the end
of this warmup, the meters on the discriminators in the demodulator
rack should be stabilized. Depress the FAIL-SAFE HOLD switch
on the top of the demodulator rack.

Shore — 1. Press the STOP button on top of the battery charger and then
and disconnect the starting cable.

. Check operation of the rudder control circuit by operating console
controls. Meter deflection on rudder discriminator should be
proportional to setting of rudder control. Rudder servo should
follow setting of console control within + 2 degrees.

3. Check operation of propulsion control circuit(s) by operating
lever(s) on console and observing meter deflection on appropriate
discriminator unit. When the control lever is at the OFF position,
the meter pointer should be deflected to the right end of the scale.
Moving the lever to either the forward or reverse position should
cause the meter pointer to move toward the left end of the scale.

4. Place the propulsion levers at the OFF position.

5. Connect the starting cable to one of the MG sets. Press the
START button on top of the battery charger and wait 5 seconds
for the MG set to reach operating speed. Press the STOP button
and then remove the starting cable.

6. When two MG sets are used, repeat the preceding step for
starting the second unit.

Shore — 1. Set control knobs on battery charger to positions indicated on
charging chart mounted on battery charger according to size
of battery in use and number of MG sets in use.

2. Turn timer knob to 1-hour position. Cell voltage will normally
be between 0.8 volts and 1.3 volts, depending upon state of
charge of battery and will level off at about 1.3 volts as the
battery approaches full charge. If charger will not come on,

III-6

because of low battery voltage, momentarily depress switch under
ledge and just above the control panel.

3. Wait 15 to 30 minutes for stabilization of the electronic equipment.

4. Check calibration of system.

2.2 CALIBRATING PROCEDURE

This calibration check should be made after the equipment has been turned on for at least

15 minutes and about every 2 to 4 hours during the test.

2.2.1 Rudder Control Channel

a. Set RUDDER CONTROL SELECTOR switch to mode of operation to be used
for majority of tests.

b. Place the rudder control knob at the ZERO rudder angle position. Check rudder
shaft position by viewing the digital indicator on the servo unit. If rudder is not at zero,

adjust CF BAL control of rudder discriminator in model.

c. Set control knob to 45-degree PORT and STBD positions. Check servo tracking
at these points. If these points are off more than 0.5 degree, adjust the SENS control on the
rudder discriminator. There is some interaction between the SENS and CF BAL controls, so
a readjustment of both may be required. NOTE: Due to slight nonlinearities in various control
circuit elements, it is almost impossible to obtain exact tracking over the whole range of

rudder positions.

2.2.2 Rudder Readout Channel

a. Set rudder servo to zero on the digital position indicator. The rudder position
indicator on the console should be at 0-degree. If not, adjust CF BAL control on the rudder
discriminator in the console.

b. Set rudder servo unit to 45-degree PORT and STBD positions and check meter

indication. If scale spread is not correct, adjust SENS control on the discriminator.

c. Repeat preceding steps if necessary.

2.2.3 Propulsion Control Channels

The propulsion channel circuitry normally will not require adjustment. The direction
of motor rotation should be checked and if desired, motor speed may be checked against con-
trol lever position. When two separate propulsion channels are used, it may be desirable to
adjust the discriminator SENS and CF BAL controls so that control lever settings are similar

in the desired operating range.

Ill-7

2.2.4 RPM Readout Channels

a. Open control and readout unit drawer of the console.
b. Set rpm meter ON-OFF switches on rear of chassis according to channel(s) to
be used, if not previously set.

c. Put the RPM TEST-OPERATE switch, located near the rear center of the
chassis, in the TEST position. The panel meter(s) should indicate 720 rpm for either the
1500- or 83000-rpm scales. NOTE: The readout circuit telemetering link must be in operation
for this check.

d. If meter calibration is incorrect, adjust appropriate trimmer capacitor on right

side of control and readout unit chassis.
e. Place switch in OPERATE position and close drawer.

f. Slowly apply propulsion power and check rpm readout meter (s).

2.2.5 Spare Data Channel

When the spare Channel discriminator is used, the controls on the front of the

discriminator should be adjusted as required for zero and full scale.

2.3 MODEL TESTING

Operating procedure during the model tests will depend upon the type of tests to be con-
ducted so no specific procedure will be outlined. The rudder controls may be changed from one
mode of operation to another at any time. The propulsion levers. should not be moved rapidly
except in an emergency. The field temperature of the motor-generators should be checked

frequently when using high propulsion power.

2.4 EMERGENCY STOPS AND MODEL SHUT-DOWN

All model equipment may be turned off at any time by operation of the POWER AND FAIL-
SAFE switch. If there is a loss of communication to the model, all power will be shut off
automatically. The positive lead of the motor-generators and motor-alternators should be

disconnected when the equipment is not being used.

III-8

PART IV — MAINTENANCE

1. DISCUSSION

The Type 304 Radio-Control System is composed of a group of commercially and
specially designed units. The standard commercial items used in the system are (1)
subcarrier oscillators, (2) telemetering transmitters, (3) telemetering receivers, (4) subcarrier
discriminators (demultiplexers), and (5) transistor regulated power supplies. The motor-
alternator, motor-generators, nickel-cadmium batteries and the battery charger are commercial
units manufactured or packaged according to Model Basin specifications. All other units are
of special design to meet system requirements. The maintenance of the transmitter, receiver,
and subcarrier discriminators is fully described in manuals supplied by the manufacturers. 4 5»©

All circuitry used in special units of the system is of straightforward design but many
of the adjustments in these circuits are critical if optimum system performance is to be
maintained. The control and readout sections of the system may be treated as separate
systems except for common chassis ground and power input connections. In most cases it
will be possible to isolate trouble to a specific channel or unit by means of the blown fuse
indicators, the power supply test meter in the console, the power supply test points in the
model equipment, or the meters on the discriminators in the model or shore equipment. Adjust-
ments should not be made to the internal controls unless proper test equipment is available
for checking the effect on the system. It should be noted that it will be necessary to com-
pletely check the calibration of units such as the subcarrier oscillators and discriminators
if tubes are changed. It is suggested that personnel performing maintenance on the

telemetering circuitry use ‘‘The Theory and Application of FM-FM Telemetry’’?

as a guide
to circuit setup and testing.
The following sections of this part of the report describe precautions to be taken when

replacing components and the procedures to be followed in making adjustments.

2. TELEMETERING EQUIPMENT

The general alignment and maintenance procedures for the transmitters, receivers, and
discriminators are described in instruction manuals supplied by the manufacturer.4°5°© The
adjustments described in the following paragraphs are those which are not described in the

manufacturers’ literature, or are unique to this system.

2.1 SUBCARRIER OSCILLATORS
2.1.1 Potentiometer Controlled

Each potentiometer controlled subcarrier oscillator has individual adjustments for
setting the high and low band limits and the output level. A test point is provided for check-
ing oscillator frequency. The control circuit subcarrier oscillators are shown in Figure 19 and
the readout circuit oscillators in Figure 52. A list of subcarrier frequencies versus control or
readout potentiometer settings is mounted in the console. When setting the subcarrier
oscillators a digital frequency meter should be used for checking frequency; this frequency
meter may be connected directly to the test point of the oscillator. After allowing at least
30 minutes for warmup, adjust the HIGH and LOW controls to obtain the frequencies listed on
the chart. Repeat the adjustments if necessary as there is some interaction between controls.

The procedure for setting the output controls is described in Section IV, 2.3.

2.1.2 Reactance Controlled

Reactance controlled subcarrier oscillators are used only in the rpm pickup circuitry.
The frequency of the oscillators is adjusted by positioning the E-core pickup coil relative to
the segmented wheel and by soldering silvered mica capacitors across the tank circuit within
the oscillator. The poles of the E-core should always be parallel to the axis of the propeller
shaft, and the distance between the core and the wheel varied by adjustment of the two
lock-nuts. A preliminary check on the frequency deviation of the oscillators may be made by
slowly rotating the pickup wheel and observing the deflection of the indicator on the discrim-
inator. For a complete check, the output of an accurately calibrated discriminator should be
connected to an oscilloscope. The pickup wheel should be rotated at speeds of from zero to
3000 rpm and the pickup and tank circuit capacity adjusted so that maximum frequency de-
viation is obtained without exceeding the band limits. It should be noted that the capacity of
the cable from the pickup to the oscillator forms part of the tank circuit and any changes in
cable length must be compensated by retuning the circuit. The output control on the

oscillator should be adjusted as described in Section IV, 2.3.

2.2 TONE CIRCUITRY
2.2.1 Tone Oscillators
There are no adjustments to the tone oscillators except the output amplitude
controls. The adjustment of these controls is described in Section IV, 2.3.
2.2.2 Tone Detectors

The tone detector circuitry consists of a common audio amplifier which drives a

group of resonant reed relays. A gain control in the amplifier (R1 in the tone detector unit,

IV-2

or R7 in the readout unit, Figure 19) is adjusted to provide a suitable level of driving current
for the tone detectors. This current may be measured by reading the voltage drop at the test
points which are across a 1-ohm resistor in series with the tone relays. Since the value of

the driving current is subject to change if the system is expanded, the correct levels will be

posted in the console.

2.2.3 Test Unit

A small tone detector test unit (Figure 35) has been constructed for testing the
control circuits tone equipment. The unit is designed to plug into the motor-generator, motor-
alternator, and spare tone outlets on the demodulator unit. The indicating lamps are arranged
to show when the relays are closed.

In case of trouble with the tone circuitry, the tone relays should be checked first
since they contain a vibrating contact which is subject to wear. In most cases it will be

desirable to replace defective relays instead of attempting repair.

2.3 MIXING NETWORKS

The tone and subcarrier oscillator mixing networks in the control section of the console
equipment and in the readout section of the model equipment are arranged so that each of the
oscillators may be adjusted to supply the proper amount of signal to the PM transmitters. In
addition to these, master amplitude controls for the transmitters are included. The levels for
the individual signals are determined by setting up a modulation schedule based on the
modulation sensitivity and the maximum allowable frequency deviation of the transmitter.
Since the procedure for setting up this schedule is described in Reference 8, no attempt will
be made to cover the subject in this report. It should be noted however, that only one of four
tones in the propulsion-control system is on at a time. Each tone oscillator is set for the
same amplitude and the modulation schedule is set up as though only one tone is being used.
Since additional channels may be added to the system, a current modulation schedule for the

control and readout links will be posted in the console.

2.4 TRANSMITTERS

The alignment and maintenance of the transmitters is fully described in the manufacturer’s
literature.4 It should be noted that the transmitters are operated on a 200-volt supply instead

of the 250-volt maximum. This reduces power output to about 2 watts.

2.5 RECEIVERS

The alignment and maintenance of the receivers is fully described in the manufacturer’s

literature. °

IV-3

2.6 DISCRIMINATORS

The alignment and maintenance of the discriminators is fully described in the manufac-
turer’s literature.© It should be noted that if tubes in the frequency selective circuitry are

changed, the linearity will probably be affected.

3. CONTROL EQUIPMENT
3.1 RUDDER CHANNEL
3.1.1 Rudder Control Panel

The three types of rudder controls are used in a voltage divider network of the
rudder channel subcarrier oscillator. To switch from one type of control to another without
recalibration, the controls must be matched to about + 0.1 percent for equal end resistance
and for total resistance. If any component has to be replaced, the entire circuit should be

checked and retrimmed, if necessary.

3.1.2 Subcarrier Circuits

Adjust the subcarrier oscillators as described in Section IV, 2.1.1. Adjust the front
panel controls of the discriminator as described in the calibrating procedure, Section III, 2.2.1.
If internal discriminator adjustments are required, they should be made in accordance with

procedures described in Reference 6.

3.1.3 Rudder Servo

The adjustments to the rudder servo should be made in the following order; however,

steps may be omitted if it is felt that only certain controls require adjustment:

a. With the power turned OFF, mechanically position the rudder servo control
potentiometer so that the slider is at the center of its range when the digital indicator on the

servo ig at zero.

b. Adjust the cams for the limit switch (Figure 44) so that the switch opens at
+ 47 degrees or at smaller angles if rudder throw is limited.

ce. Connect the servo unit to the amplifier and set the circuit selector to the
WIRE CONTROL, VELOCITY position. Connect a 5000-ohm multiturn potentiometer to the

input circuit for position control. See Figure 42 for connections.
d. Disconnect the jumper shown in Figure 41 to remove servo motor power.

e. Connect an oscilloscope to one of the terminals marked G on the A-19

transformer.

IV-4

f. Turn the power ON and manually rotate the servo shaft to the 0-degree position
as indicated on the digital indicator.

g. Adjust the multiturn control potentiometer for minimum signal on the oscilloscope.

h. Adjust C-1 (Figure 41) for minimum quadrature signal. Readjust the control

potentiometer slightly if necessary.

i. Move the oscilloscope input cable to the 0.47 uf condenser connected to the
cathode of V3.

j. Adjust C2 (Figure 41) for minimum quadrature signal.

k. Connect an a-c voltmeter to junction Y, shown in Figure 42, which is between
sections of R5. Set the VELOCITY dial to 50.

1. Observing the null indication on the oscilloscope and the digital position indi-
cator on the servo unit, adjust R-1 (GAIN) and R-2 (CENTERING) so that the polarized relay
contacts close (indicated by voltmeter reading) when the shaft is rotated 1 degree either side

of the center (null) position.
m. Turn the power OFF, install the jumper, and then turn the power ON again.

n. Momentarily ground terminal 3 of TA-40001. If the servo motor tends to run in
either direction, adjust resistor R7 (Figure 41) so that the motor does not run while terminal 3

is grounded.

o. Turn the CONTROL SELECTOR switch to the STD position and place a 100
pound-inch dead-weight torque load on the servo. Check the run-in rate for raising a load in
clockwise and counter-clockwise directions. If the run-in rates are different, adjust R-4

(Figure 41) for fastest and approximately equal run-in rates.

p. Remove load and check damping for STD and VEL positions of SELECTOR
switch. If necessary adjust R-3 or R-6 for desired degree of damping.

q. The gear train in the servo unit should be periodically lubricated with a small
amount of Lubriplate.

3.2 PROPULSION CHANNELS
3.2.1 Propulsion Control Panel

There are no electrical adjustments on the propulsion control panel. Forward and
reverse sections of the potentiometers are padded for equal total resistance when installed.
Mechanical adjustments are provided for alignment of the potentiometers to the control levers.
Adjustments are also provided for the microswitches which control the propulsion reversing
circuits. A small amount of powdered Molly-Coat should be applied to the control shafts for
smooth operation. The + 150 volt leads to the potentiometers are fused to protect the
resistance elements of the potentiometers.

3.2.2 Subcarrier Circuits

Adjust the subcarrier oscillators as described in Section IV, 2.1.1. With the
motor-generator turned OFF, place the control lever at the ‘450 FORWARD”’ position and
adjust the CF BAL control on the discriminator in the model for zero current as indicated by

the meter.

3.2.3 Error Regulator

There are three adjustable resistors in the error regulator circuitry. diusoment
will probably be required only if components are changed. When making these adjustments,
a 30- to 50-ohm resistive load with a power rating of 3 kilowatts should be connected to the
output of the motor-generator in place of the propulsion motor. NOTE: The motor-generator

output should be kept low or at zero except for short periods while making these adjustments.
1. Set the range switch on the error regulator to the 300-volt position.

2. Adjust the propulsion control lever for zero output current on the meter of the

discriminator.

3. Adjust the ZERO control (R-1, Figure 58) for a motor-generator output of
150 volts.

4. Check the output voltage versus control lever position. Zero on the control
lever should produce zero output and 100 on the lever should produce an output of 300 volts.

If the range is not correct, adjust the SENS control on the discriminator.

5. Connect a test set such as a Simpson Model 260 to the BAL TEST terminals on
the printed circuit board, Figure 57. Set the meter on the 2.5-volt d-c scale and set the pro-
pulsion control lever for a 150-volt output. Adjust R-3 (on the printed circuit board, Figure 57)

for zero voltage on the test set.

6. Connect an oscilloscope across the resistive load. Set the RANGE switch on
the error regulator for 150-volt output. Introduce a transient into the system by rapidly moving
the control lever within the central portion of its range. Observe the transient response on
the oscilloscope. If necessary, adjust R-2 (GAIN) for a damping factor of about 0.4 to 0.6,

i.e., 10 to 20 percent overshoot.

7. The emitter current of the output stage may be monitored at the test points on
the panel. A 5-volt drop across these points represents 1 ampere emitter current, which is

approximately full drive to the motor-generator.

3.2.4 Spare ON-OFF Channel

No adjustments are required except the amplitude of the tone oscillator signal into

the mixing network. See Section IV, 2.3, for details.

IV-6

4. POWERING EQUIPMENT
4.1 ROTATING EQUIPMENT

a. Inspect commutators and collector rings on all machines to see that the surface is

smooth and polished.

b. Check brushes on machines to see that they move freely and make firm and even
contact with the commutator or collector rings. Keep a spare set of brushes on hand for each

machine.

4.2 STARTING EQUIPMENT

Check time-delay relays to see that they operate at the proper time intervals indicated

in Figure 50.

4.3 BATTERY CHARGER

Lubricate fan motor once a year and if charger is operated in dusty location, blow out

dust and dirt as often as required.

4.4 BATTERIES
4.4.1 Charging

To protect rotating equipment which is subject to the full charging voltage, this
voltage should be limited to 50 volts. The charging rates to be used when operating the
models is posted on the battery charger.

If individual cells are removed from the tray, it is essential that the cells be
supported before charging. This may be done by placing stiff fiberboard or plywood on the end
faces of the cell or group of cells, parallel to the plates within the cell and clamping firmly,
as with a C-clamp. Never charge an unsupported cell or cell group without lateral support.

If the battery is on constant float or trickle charge, the charger should be
adjusted, with the battery in a full charged condition, so that the battery voltage will be
Maintained between a minimum of 1.37 and a maximum of 1.39 times the number of cells in the
battery (49.3 to 50.1 volts for a 36-cell, 48-volt battery, etc.). This will keep the battery in

a charged condition and minimize the frequency of water additions.

4.4.2 Electrolyte

The electrolyte in this battery is a solution of potassium hydroxide (KOH) having
a normal specific gravity of 1.300 at 72°F. It has a freezing point of —-80°F. The specific

gravity of the electrolyte does not change appreciably between charge and discharge.

IV-7

The cells of the battery contain only a small amount of electrolyte. The electrolyte
level should be checked only after the battery has been charged and water added as required,
taking care not to overfill. Even in the fully charged condition, the level should be no higher
than the red line which, in some types of cell, is only slightly above the plate tops. The
reserve electrolyte type of cell construction has two red lines marked on the cell jar. The
electrolyte level should be maintained between these red lines when the battery is in the
charged condition. Whenever water is added, thoroughly soak and rinse the removed vent
plugs with water before replacing. Very little water will be consumed if the battery is on
constant trickle or float charge at the proper voltage.

In very small cells there is not sufficient electrolyte to take hydrometer readings.
After some time in severe cycle service where electrolyte specific gravity is in doubt, invert
the battery, draining all free electrolyte. Replace with new electrolyte of 1.300 specific
gravity, which should be obtained only from the manufacturer.

When charging at high rates, the cells will gas rather vigorously when approaching
full charge. This gassing will cause the electrolyte level to rise above the red line. This
apparent excess electrolyte should not be removed as the level will drop back after the cells
stand on open circuit following the charge.

A white crystalline deposit may appear on the cell tops. This is potassium car-
bonate which is noncorrosive and harmless. This should merely be brushed or washed off
periodically.

Maintain the battery in a clean and dry condition externally. Carefully wipe off
any spilled liquid.

WARNING: Sulfuric acid, as used in lead-acid batteries, will cause permanent damage to
NICAD batteries. Therefore, do not add sulfuric acid to NICAD cells and do not use any tools,
such as hydrometers or funnels, which have previously been used with lead-acid batteries.

Care should be taken to keep open flames or sparks from the battery particularly
when it is on charge, as there is the possibility of hydrogen gas being generated in the elec-
trolysis of water and the resulting danger of an explosion.

Do not spill electrolyte on clothes or the skin. In case of accident, wash with

vinegar or saturated boric acid solution and rinse freely with water.

5. READOUT EQUIPMENT
5.1 RUDDER CHANNEL
5.1.1 Position

The alignment of the control and readout potentiometers on the servo unit is
described in Section IV, 3.1.3. Information as to the adjustment of the telemetering equipment
is described in the calibrating procedure, Section III, 2.2.2, and in Section IV, 2, which covers

maintenance of telemetering equipment.

IV-8

5.1.2 Running Time

There are no adjustments to this circuit except the amplitude control of the tone

oscillator. Details on this adjustment are covered in Section IV, 2.3.

5.1.3 Port—Starboard Indicator

A microswitch on the servo unit is cam-actuated when the rudder passes the
0-degree position. The cam may be adjusted by loosening the set screw in the edge of the
cam. The only other adjustment to this circuit is the amplitude control on the tone oscillator.
See Section IV, 2.3, for details of this adjustment.

5.2 PROPULSION CHANNELS

The adjustment of the telemetering portions of these channels is described in
Section IV, 2. The SENS controls on the readout circuit discriminators in the console should
be turned fully clockwise. The system may be most easily checked by driving the pickup with

a variable speed 0- to 3000-rpm motor and following the procedure outlined below.

a. Connect an oscilloscope to the digital output connector on the console and adjust R-1
(PORT) or R-2 (STBD) for stable operation of the Schmitt trigger over the entire speed range.

b. Connect a digital events-per-unit-time meter to the digital output connector on the
console.

c. Set the meter range selector on the console to the 1500-rpm position. Using the
digital indicator, adjust the motor speed to 1000 rpm. If the console meter indication is not
correct, adjust the appropriate calibrating capacitor (Figure 19) for proper indication. Repeat
the procedure for the 3000-rpm range using a motor speed of 2000 rpm. NOTE: If the capacitors
will not cover the range or if both ranges are off in the same direction, R-4 or R-5 may be
adjusted.

d. Check the accuracy of the console indicators at several points for each range.

Accuracy should be better than + 1.5 percent of full scale.

5.3 SPARE CHANNELS

The spare channels are simple analog and ON-OFF channels. The adjustment procedures
are outlined in Section IV, 2.
6. POWER SUPPLIES
6.1 CONSOLE EQUIPMENT

The vacuum-tube power supplies for the console equipment have potentionmeters for

adjustment of output voltage and balance controls for ripple reduction. Control numbers and

IV-9

functions are indicated on the schematic drawings, Figures 24 and 27, and in the photographs,
Figures 23 and 26. A test cable is provided for connecting the supplies to the console equip-
ment while making these adjustments. The voltage controls should be adjusted first for
proper output (+ 5-percent tolerance). Then a high gain oscilloscope should be connected to
the output of the supply and the BALANCE control adjusted for minimum 120-cycle ripple.

6.2 MODEL EQUIPMENT

The transistor-regulated power supplies for the model equipment use one or two fuses for
regulator protection. These fuses must be of the quick blow type and oversize fuses must not
be used. The components in the regulator circuits may be checked or replaced by removing

the base section of these units. The voltage tolerance of these units is + 5 percent.

7. BLOWER

The blower at the rear of the console uses a replaceable filter element. The element
should be replaced when the indicator on the blower panel reaches the red line. The blower
motor has two oil fittings which should be lubricated with SAE 20 oil every 6 months.

IV-10

PART V

BLOCK AND SCHEMATIC DIAGRAMS, GRAPHS, AND PHOTOGRAPHS

Jayjiwsuel |

/\

Jaijijdwy
19XI

WBISBIG YOOTY ‘e[osuoD ‘jyuewdInby Joyu0D — T einsiy

10}e||!9S0
Jaleoqns

J9y|4
SSE q-M07]

JOXIW pue
xtsyeyw Aejay

$10}e||!9S0

Quo]

10}2||!9S0
Jaedqns

1o}e||!9S0

1aueoqns

}01jU09
uols|ndolg

Y9}IM§
auo| aleds

YIPMS Bes
-|!e4 pue Jamo

}01}U09
uois|ndold

}01U09
lappy

V-2

WeISBIC| YOOTE ‘Jopow ‘yuewdinbyY Joajuog — g oinsiy

10}0\\ Aejay

J0}e/9uUa5 oyejndey
-10}0W 1049

a|]ad0ld Jaxajdiyjnweg

uolsjndold u01}9811G

Weq$

01]u09
€=- == joje1auay 10,0

10}e19Ua5 10,0}

Jaijijdwy

pue
Jayfts d-

jo1}u09
10}2UJ9}] Y-10}0 |

$10}9a}aQ
auol

Alayyeg 10jeWa}| y-10}014 | yojanbs

$}9e}U09
auol
aleds

WES _ 4s

10}€U9}|y 10}0W

A

es adseyd

Jo1}u09
10}e1aUa5 10}0W

Ye}S
<== J0}e19Ua5 J0JOW

Aejay
uol}IaNQ

JO,OW

Jo}e1aua5)
=10} 0

10ye|nday
10119

Jajjadold laxaldiyjnwag

uolsjndolg

yun rayuidwy

yappny - ovlas Onlas Jaxaldi}jnwag

}

anlaoey

[\

V-3

JayyiwsuelL

[\

weldelqg YoOTg ‘[epoy ‘jueudinby ynopvey — ¢g oinsIy

Jayi4
SS q-M07]

yndu}
“pow jeusa}x3

10}e||19SQ

Jaiueogns

$1y3!7
Bulyoest OL

10}e||19SQ

yaieoqns

10}e||19S0
Jaiujeogns

10}e|}!9S0
Jaiueogns

Kejay

Aeyay

Aejay

18}J9AU09
Aduanbal 4 0}

adeyoA uolsigaig | ‘ev!8!0

(aseds)
Jaonpsuel |

“pais dnd! Wd

WOd ANY9Id HdY

ynduj auol
aleds

1032} |19S0
auol

|O1}U09 Aejay
Toyejnpowaq
Jaijidwy

10}e]|19SQ

auol

eee es eee |

| wed Pais Hod

yoel

UN OAlas
Jappny

uad

V-4

weIsVIG YOOT ‘ejosuoD “yuewdinby qnopeey — F einsiy

yndjng 1aAlavay

Japiooay sojeuy OL

(aleds) (aseds)
10}89!puj ajosuog laxa}dijjnwag

ayeiqijed |ey810 = 7S
Jappny |e}181G-Bojeuy = TS
(Wd¥ pays) Ja}iaauog quaung adeueesiia 92 (Wd pqis)
40}@91pu} ajosuog 0} a}ey asing Jaxajdiyjnwaq
4apioday |eV31G OL alji|dwy
(Wd¥ W0d) J9}0AU0D Juang 4 (WdY WOd)
10}e9!puj ajosuog 0} ajey asing Jaceys esind Jexajdiyjnwag
~09
Japiooay [eys!g OL Jaiji|dwy
yndjng auo| aleds
490(Q awl)
; :
muuny J8ppny $10}29}3aq Jaljijdwy pue
uo] 18}|14 SS@q-M07
OoV

Japiovay Sas|nd Jaljidwy

1e}1810 OL) Ayelog

J9A19994

(Jappny)
10}e9!puj ajosuod

Aejay suisianay
1ayaW

JaaAuoy yuaung
0} ajey asing

(1appny)

as|nd jaxajdi}jnwag

[\

~09
19plooay Bsojeuy oL =

V-5

a[Osuoy jo jeueg [OIJUOD — g oinsIy

BOLO OBLS HOLOW 180d:

re Ned
BSusA3y

eee Chr

SNL ONINNNS BI00N8
TWGERINOD 39S

eat

sag
ons 80 ij

9-0:9-9 ; ie Br a : $10uiN09 Noisindous ———

Fe wieentve
Nisa F700n wou B ciAvO

yas OR 3; s
WI1LSAS TOYLNOD Olova SauadAviTiN i 3 SARS

V-6

weISeIg YooTg ‘weyskg OAIOS Joppny — 9 oundIy

I
|
|
|
|
!
|
|
| adualajay ~ 00b
!
|
|
l
1

Buldweg

1
(18A)

(aLs)

Buldweg

u

128A
aus
eee eee p-——-----}
O te
VY
a2uaiajay ~ 00b Salie X
J ; %y
v
1:01
x0g Jea

I
sappny 0] <— -4

aouaajay 0-0

10}99}3Q

AAl}ISUas aSe4d

IV
<= [mm Je

olpey

SS 9 —— ain

V-7

uoT}BledQ peZI{Iqeyg AJID0[eA 10} peedg OAIeg

SNSIOA dUI}}ES [VIG ‘weysAG OAJOS Joppny — g ounsIy SCAND pso]-peedg ‘we,Skg OAIOS Joppny — J eins
Bulyjas [DIG Aso0jen i spunod-you! u! poo j
00! 08 09 Op 02 f°) 002 091 001 08 Ov fo)
6 = IDG Ay!9018A
8 8
2
9.9) + + - ——_ 9}
° °
8 G2 = 1010 Ay19018A
a
wn
®
© a
cic Ob-02 #WIT vee
5 a °
a \ x
iJ \N 2)
(re) S 3
oO XN
zee x aa a zea
\ cS =
vU NS Tw a
\ SS | a
uo \ Se Ae
65 \ OS=IDIG Aj!90/8A 3
ov ~ sf = ors
a “
Q U
S Sealer oO
IN mI
eee = 2
ip
= 3
| 8b 80a
28 if U0!}D48dQ |DUO!}AOdOdg 9¢
+ >9

od

V-8

peo?

Jali |dwiy
2-0

WeIsvI( YOOTE ‘10}e[ndeij Joy — E ounsiy

a0ualajay~ OF

Jalji|dwy
o-d

Joye|npowag
BAI}ISUAS aSeud

10}e|NpoW
21} 0ud eW

goualajay 9-0

YIOMION
peaq

eugis
}o1}u09)

V-9

To External:
“ ¢« Recording

e Equipment °

Regulated >» Intercom Switch
: Unregutated

Power Input

Figure 10 — Console, Rear View, Showing Power Input Connectors, Connectors for
External Circuitry, and Foot Switch for Intercommunications System

V-10

(s) sajjadolg

yy817 Buiyoes

auol aieds

AGIT

W2I-p0e adAy
dny31d Wd¥

indu} “pow

VIT-POE adAL
iu jnopeay

Jauueyd aieds

(S) Jajjadorg

(s) sappny

VZI-p0E adAL

dnyaid Wd

WBISVIC OIJWWSYOS ‘SuITqeG yuNnsJeqU] — TT ens1yy

ajged Bulyeys

VOI-bOE AdAL JUN jo1yU0D
pue
V-80EE-DW adA | puej uj
10}218Ua5-J0}0W AYE

(S) 10j0W UoIsjndolg (a6)

VET-pOE ada
1oyejnay 10413

(syalano 6)
aseld T ASTI

(s}a|300 €)
aseyd £ ASTI

V6-POE AdAL JUN }ouju0D
pue
¥-10G2-| adh puejul
JO}J9AU] MOSL

38S 9-W 110} H-V OF 10 OT
S}@S S-W 2 10) HV OF
Aiayyeg

ajged Buluers
A SIT

Ja8sey9

VOT-POE adAL jiu josjuog
pue
V-B0EE-OW adA | puejul
JO}E1BUaH=J0} 0H MHE

(S) 10}0W woIs|ndolg (v5)

aged suiyeys
ASII

va-b0e adAL Wl-bOE adh 1

Jaijijdwy OAlas

yun oAlas

01022 edAL Jaxajdiyjnwad 101

Wb-bOe adAL y9eY JoVeInpowaG

“1g eundi4 ul

paj!eyap sajqed 0} Jajad Sajoui9 UIYyyIM SiaqUNN

“palisap ale sjauueyo uolsjndoid yuapuadepus

OM) Way 10 AYE SPaadxa jndu! Jo}OW Uo!sjndoid
uaym Ajuo payinbad aul] paysep ulyyim Juawdinb3 :ajON

auol aleds

ASTI

€ 10-7 pue
veT-poe adAL . V9-pOE AdAL yun semod
Jojejnday 1013 vS-HOe Eee auol Joye|NpowWag pue JaAiadey

1002 adAL
Jaalavey (OL

VI

V-11

Figure 12 — Console Front View with Control Panels and Control and
Readout Unit Drawer Open

V-12

WeIsBIq OIyeWeYog ‘sjeueg [OUD Jeppny pus uoIs{ndoig — eT oinsty

|@UDd |04j;U0D sappny

'SZE-10Sb-92 edAy ‘sojaUU0D @)——
UOGdIY eN|G UO SUd!}OBUUOD UId aJOUaP Salou Ul SUBqUINNY ‘p @)
"@DUDJSIS@4 ||D49AO jONba
Pud doj 1a,Ua9 ay04n99D UlDjGo 04 Padinba’ sO payuNYs sjo4juOH ‘“¢

NSuV adh] yodieaH ,

‘48J9WOIJUBJOd |BBYM JO BoUD\SISeL
PUS ajDjNWIs 0} Spua 4D PappoOd sjosjuOd yasaud puDd days “| ‘ajo dais
1854UM
4asaid sS5Sq
SUO\SISAY ;
UoIsI9alg M g
® ¢ ee
PIa!yus aiqoD
|
|
|
|
189)
|
Yoynid |
1S 19POW JWI) 91449813 puopud\sS }
AQGI+ 4aSa1d days 1984M =
S2¢-lOGb-92 edh| | 5 a [@UDg |04;U0D uoIsindoig
"SZE-1OSb-9zg adh, ‘40;DeuU0D UOG!Y an)
UO SUOIJD9ULOD UId BJOUaP SajouID Ul SYaqUINN ‘¢ @—— pias 3|qod
“aUD\SISa1 jONba 404 syod @©—— d a
uo|sindoud yo uoly9as asianad 40 PIDMJOJ JUNYS ‘Z Jo4jU0D Ws ps00q404S J04jU0D Wd 4404
“‘UolyDSUadWOD AjluDaUl| () AOSGI+ zi
JOJO||INSO 4a14IDDGNS JO} 84D Su0jSISa1 ¥QO ‘| :ajON ea (2) is aex
| t | 4
‘NOY “ay
©) @!) €2) |
2 3jON 2% 8j0N 4
4aAa7 43007
|04ju05 Aq pajo |04ju09 Aq pajo
dwo7 |489 -NjoW YO{IMSO49! IWB9S Snow Yosimsouo}
000f6 $00S! u0$o440 € HOlid Res LOU HAS OAH
O Ag Ny YY Wee zy
wdu ajD9S-|in4 3}0S-|I04 puD saM0d dwo =e joajuo9 dwo Tee 5 joayuog
wd wd
Hee) 489
puomso4 | 810N puomso4
vS2S-1LAU adAl OIL t vGZS-LAY 2edht O11 |
BOUDSISAY |OJOL OI BIUDISISAY |0j01 ¥OI

© @ ©

QQ)

V-13

WeIseVIC] OIyeWeYoS ‘jouvg [OUOD JaMOog — FI ons y

“payeaipul se jdaoxa adAy uoau ACT] Sjyel| JOjId |] “2
SZE-10Eb-92 |Ouayduy “slapjoyasny adA} duljedipul ul payunow sasnj |jy “[ sa}oy

Qing Lp “ON

ud
eM Jayeap

VI
19}e8H

ud

GLX ajeladQ

ynopeay Aqpueys

joujuog auiy

uO “9S0
"Bay

V-14

Amphenol 26°4401-32P

Amphenol 26-4401-32P

To Propulsion Control Panel

To Rudder Control Ponel

Amphenol 26°4401-32P to Control Section of Control and Readout Unit Type 304-1A

Connections to TD! Transmitter
Type (0018
Gilets d)
&3 g :
38

Amphenol 26-4301-32
To Control Circuit Power Unit
Type 304-28

Tronsmitter Antenna
'UG291B/U
@ A

Connections to Meter Panel

AN 3102-14S-6P
Intercom Switch and Connector
(Mounted on Foot Rest)

Analog Rudder
AN 310214515,

Spore Channel
AN 30214515

KTO!

% No connection to shields on this end of KMTOI, KNO! and KPOL
@ @@@
allele
addd

=KTO3 connected to Pin 17.

Type 304-1

ri
=

Terminal Strips AX
fo Chassis
Heaters

Amphenol 26°4401-32P
To Power Control Panel

Model RF

Flourescent
Lomp ond AX

| Simpson Meter
Model 260.

Stbd cpm.
(Digitol)
Gonnon XL-3-14

(Digitol).
Connon XL-3714

(Digital)
Connon XL-3-19

Notes: | Shorting plug, pins B and C shorted must be used when program signal is not being used
2. All blocks morked Avon this drawing represent connectors or connections mounted on the moin console.

3, Key to cabling diagram: Enoch letter represents o specific connector or group of connectors. Letter groups ona
leod show which connectors have common connections. Los! two numbers designate specific conductor.

a Amphenol 26-4301-325,
Regugted To Reodou! Circuit Power Unit Type 304-38

AGG(L+{KROI_}

3 5

3

> g3
Connon KO3-1610S S

Connections to TO| Receiver —|
Type 20018

OHOO ©OLO Caer 50600 66
é 3| |S a fe
Canon DG-375 to o ~ © Connon 06-37 to
TDI Demultiplexer Type 22016 o TDI Demulliplexer Type 22016.
(Port rpm) A {Stbd rpm)

Figure 15 — Interunit Cabling of Console, Schematic Diagram

V-15

(15)Sig. Out /
collen" &
fsa.00tl
i g
2e=
eee
ais
Gnd.
lcorem[ Sore"
{LMS04}-+27)*150v
EES,
{LMSO2}+G)
(8) Gnd

Gonnon 06-375 to
TDI Demultiplexer Type 2201C
(Rudder Angle)

Ja}aq peay

TOMA

wvIsvIg ONBWaYyoS ‘Jeuvg ySeJ, ejosuoD — gy oansiy

on
“ee

6

m=N OO Stim Cr CO

HAIN UOI}ISOg YO}IMS

weiseig duijqed

{unsJa}Ul UO UMOYS SI 9pOd all 5 a
paces tinte yunsayul Ys SI poo allM :2}0N oo >
=o n ee) = sz mu
o = = <= 2 a > SSeS
S55 Ss = 1 n = na = a aS)
s 2 = z 2 SB es Se
S 3 Ss Ss Se

V-16

Or 3

ysa] jeusa}xy

|PSD-95875

Control Section

PPORT REx
OWE,

org ar° RPM

| PSD - 95876 |*

matenoanl <chotetanoniinnnncventanntens aeominest

Disconnect Switches for Panel Meters

Figure 18 — Control and Readout Unit Type 304-1A, Rear View

V-17

MeIA doy, ‘VT-F0E edAZ, I1UQ Jnopvey pue [oIUOD — ET OINSIYy

ap;OIQIjDD wd

ss uol,9aS yNOpDaY UOI}9aS |O4;UOD
|

V-18

5H Toroid SH Toroid

ol a ek 15k!
4

Cannon Type DA-I5S for
EMR Model 94 Osc. 5.4kc

Port
Reverse Tone [5
500Q.2cps

Yl

(00k

Starboard
Reverse Tone

Port & Stbd
Reverse Tone
4426cps [,

N.C.
Shields Port & Stbd

Ve) @)-—_FPM Pots
‘annon Type DAA5S for EMR Model
CHANG Y!-Y5 Frahm Resonant Reed Oscillator
9) (7) Control Units Type ROG-2
+150 vo-+( 3) RYI-RY5 Potter-Brumfield Type KR 14
((0) 6 volts a-c
63vac () All Resistors 1/2 watt
) OOk
()
(i5) | $47k
+150 vo-+(4) e a
63va-c
Fail-Safe Te ( 13-+—>
3685 cps oe
100k
Y4 (2) ¥ @
+150 vO re
63va-c na
ag RYS
10 @ He 100k
| i (4) shel fo
Cannon Type DA-I5S for EMR Model
TP5 2 @) Rudder Pot 18 oe SaOENUTIC
100k <a = @)
Blue Ribbon
26-4 401-32P

Figure 20 — Control and Keadout Unit Type 304-1A, Control Section, Schematic Diagram

V-19

WRISBIG OIJBWeYydg ‘UOT}Deg ynopvey ‘YT-FOg edAT, JIUQ ynopeey pues JoNUOD — TZ einsIg

SAY
4622HNG_,

“POJODIPU| SD 4dedxe ‘jauUDYD jOSJeAeJ Je}eW Jeppns

awit bBuiuuny seppny m|

_ L6zzHW§

«_____ d 2£-l0b b-92
JousydWy jo jing

‘0 Wan
KEIR) 406i] 425
voce

[isfefo)

aclA, — g
vies 4 rr

fAY 4 JOssanay

4aj8W Jappny

0} aD|JwWIs A4jIND4J9 jaUUDYD e4Ods PUD aw} BuluUNs Jappny “CG
‘Buds jo 1aju92 sDeU
25 puo !5 ym uoljoiqij09 Wd4 49@J109 40) pajoajas 85 pup Vp “p
"P8jD9|pu! SD SUd|jQeULOD jdeoxe
Ja@UUDYo Ws 440d Of AD}!WIS Asjind4I9 Jappn4 puD Wd4 psDOqIDIS ‘¢
*P8409|PUl SD {dade 440M Z/| S1OjS/SBJ |iy “SZ
‘1-uy adh, ‘skoje1 pees juDUOSes WYydJ4 ¢ YL -1 YL ‘| ‘8jON
2 dl
mio Ml : AOS. yee | OSL Suey
16e A
aa) Skeet aw ies7Sz|_¢ Bow S9sz ve
& Ne fie
“I Ol = = ZIA ===
uay: VElA (olg 401 2@z00 [Zp00 [e200
vies? Ly tye etn
——— rrr
AH H
220 ike) 10 seen,
mM A mM
uosuopsoy| O9Sb21 4Ol 408! 408!
ANN
MI NGL

dze-lObb-92
jousydwy jo }404 ——»

(€ 8JON) JappnY

® >
py SunaAtO
6) jsaj puo

$18j08H |Iy OL
9-0 ACO

(€ 8}ON) Wds pivoquns

a) =>

a
4021 422 (v)

QADBEOOOO © OOOO

9

Wdu j40d

480) - ajD1edO b S|
|

|
i
|
|

VAEINI

VLEIN| ©

©) ©

V-20

iT
ower UN
is cincul Facil 2

PSD - 95879

PSD - 95880

Figure 23 — Control Circuit Power Unit Type 304-2A, Rear Oblique View

V-21

Thordarson
Thordarson T20C54

T22RO5

5v, 3. amp

50000

a HO0000
a
Sol—[w
S

Vi
4Mf
600v
x
6.3v,5amp
N.C.
x!
V2B
Thordarson Uae Y> 6080
T22RO5 ———} i

50000

| i
[ X 150 v,100 ma
5v, 3amp Ee 3
30k 471.
7p 120k
<4 U- 20Mf
8

Q
fy 450v
24k Y
4OMt 6 47 | Imeg R4 63v
‘A I
51k a\7

OO000

450v 50k

Ss TLE!
:
O) Ip

o

b+:)

$5

56k

1&5 eyo 185 V7=
5651
20Mf
V8 450v
6X5 O ©
8 3 ——— 287 2a7 3
X 71> a 00000 87 vy

2 5 Thordarson 5k
Thordarson T20C52 Sw
T21F IO

Blue Ribbon Type
26-4401- 32P

Figure 24 — Control Circuit Power Unit Type 304-2A, Schematic Diagram

V-22

“PSD - 95881,

Figure 25 — Readout Circuit Power Unit Type 304-3A, Front Oblique View

Figure 26 — Readout Circuit Power Unit Type 304-3A, Top View

V-23

Weisel olyeueyosg ‘yE-FOg edAT, I1UQ JoMOg }INDIID ynopvey — »Z eindIy

@®

d2e-lOvp-92 adfj —uogqiy anig

9 O09 8968

pees

402|

M
dwn 01 @)a¢9
rs

Old! 1 P4044)

bSO O21

00¢ Ad

09 ‘suD4, oBp2I49

h
LLG)
+9
+e
©)

fH 00 i Q

20 poonnad

a
is}
ro,

AGoa

@S9 O21

x (5 fd
AOSb 3702 aye
S160
NOSb BOS,
vy
qe 3 on
4001
428 SSO O21
& ‘p4oy |
2st 31
ow Og! OOO! ! gear BZA

4189

10S
ou

SSO O21

1
ow 002 ® AosI { '
'gecod

Ven

‘pao
[ose dwn ¢
meaner] “eo
z
A
t— dwoc
AOSb 302 neg

oab9-y
pol,

082S-u
‘POL

PSD - 95908

Blank Panel in Place of
Starboard Channel
iscriminator

“Rudder Channel
Discriminator

Tone Detector

Figure 29 — Demodulator Rack Type 304-4A, Front Oblique View

V-25

MELA onbijqg siewoy SyF-FOg CdAT, YORY 1078[Npoweg

yind419 yajanbs

YOHIMS PIOH - 40S -I104

— 0g emnsty

V-26

To Stbd Propulsion Demultiplexer
Cannon DC- 37S

weISVIq o1BUeYoS ‘VF-F0E OdAT Yous JoyE[Npowed — TE einsty

‘A\uo sasodind \saj 404 $1 $10j019Uab
-10JOW PQJS PUD 440d 0} S10JD9ULOD
JO QO] PUD 6 ON $}2DjUOD UO S4JOA 9 :a}0N)

dS-Svl-ZOle Nv
4appny

N/@ 162-9N
jnduj |DuBIS

SLE -9G youd
Jaxajdijjnwag Jappny OL g

A, PIOH

8y0S -|!04

HIND419
yojanbs

d91-20ppy-92 louayduiy
A\ddns samog

BUTLER)

AOGI +

[ews] [eee

6608

d9l-lOby-92 lovayduy d€ -SOI-ZOIENV
40}D18U9D PAIS auo) a0ds

Sb2-O02b -92 loueydwiy

10}98j8Q @UO) Of

©OOMDOWDO OO ©

cel
| 9800000008 |

ae)
== Le
Ol
@|s
© | 8
12 | 3
Ww

® | 3
i)

: @
Gi)

©)

(b)

pl-€-yX uouuDD d9I-l0bb-92 louaydwy

Jopousay|y

4OjDJBUID 4104

4axajdiyjnwag uolsjndoig j40q OL

V-27

Figure 32 — Tone Detector Type 304-54, Front Oblique View

Figure 33 — Tone Detector Type 304-5A, Side View

TRI
Port - Reverse
500.2 ~

6.3 toall
Heaters
a

?

UTC
S0-3 IN63. -47v 32

Part of Amphenol
26 -4100-24P

Note: I. TRI-TR5 Frakm Resonant Reed
Relay Type RR-1
2. All Resistors ¥> watt except as
indicated
3. RYI-RY5 Potter-Brumfield Relays
Type MH2297J

Figure 34 — Tone Detector Type 304-5A, Schematic Diagram

TR2
Stbd - Reverse
470.5

TR3.
Port & Stbd Reverse
442.6 ~

TR4
Fail-Safe and
Both Motors Forward
368.5 ~

V-29

V4aa
Y% 5814

Port Reverse

Port Forward

Stbd Reverse

IStbd Forward

-36v

<Part of Amphenol
26-4100-24P

Alternator
Hold
Port MG Set Hold

IStbd MG Set Hold

Spore

WeIdBIq olJeWeyoS “41U: ySaJ, JOJDeJEq eUO], — Gg ounsIy

Ly ON Ag*g sdwe| JoJeD!pUl || :a10N

ajdejdaday Joyelauay pqys 0} $9T-TOgh-92 |ouaydwy
ajqeycasay
soyewayy OL

IT-€-YX NONNVO

ajoeydaday
auo| aseds OL
PJOH JOJelauad pqis

plemlo4 Pqys : ie
asianay pays SE T1SOT-90TE NV

PJOH JOJEIOUED WOd
pleMmlO4 WOd
asishay WOd

auo] aieds
PJOH J0}eWle8}| y

ajdejdaday soye1auad }Od 0} S9T-T0EP-92 |ousydW y

V-30

SERS
pet ®

0

or Mo

TE W FAYE.

Mo

Figure 36 — Receiver and Demodulator Power Unit Type 304-6A, Front Oblique View

V-31

Power Supply
Test Points

ee oO pm

1/4. Amp Fuses 1/8 Amp Fuse

V-32

S91-20bb-92
uoqqiy anjg ‘iamog
Jaxajdijjnwag pue avo,

NSOT-91-20H
uouueg

amd
J9A1990%

@!)
®)
©)
@)
@)
©
@)
@)

Or©

wevIselg o1yeulayog ‘

V9-F0g edd, 11U Jomod JOje[Npowed puv JoAtooey — Eg ainsi yy

400€-A
dedsuell

€€b-SH adAL pelt

4002/001 |@poW dedsues |

J0ST-UL AOST-UL
oedsues | dedsuell

quiog js) uaa) O AQST+

Wlod ysal anjg O AST+

dl-Spt-0¥z0v0
adA| uouued
00b ASIT
yndu| 1am0d

V-33

Figure 40 — Servo Amplifier Type 304-7A, Rear Oblique View

Figure 41 — Servo Amplifier Type 304-7A, Bottom View

V-34

weiseiqg o1jeueyos ‘y)-70¢ eddy, JotjI]dwy oAiog — Zp onSIy

. 42J9WO1jUBJOg JO WIY-G
al SjueWwo}!4 OL 484 BWO!JUaOg HS 40 spua{"3
= aeg
punol9 -V v \
J04ju0D QUIN aisO eae 713A
-0- —8)
(S}]0A 8-0-8) yndyno sopouruiiosig {~3 73° a1S
punoi9 -y |04ju05, 104ju05
dz-Svl-020v9 104jU05, O1pDy 841M o1poy
adAj uouun9 SU01}9aUUOD ynduj; SUO!}ISOg YOJIMS -|S
~ O0b AG *PayD9Ipu! SD ydadxa jy0M% Su04}SISAd |]
ida emey “|OJUBWOPUNY |ONPISas yO UO!) D};adUDD
Id 40) Buipuim juaud}!j 40 apis AYO O4 pa;daUUOD SaaWUUIY) “¢

“y| Ud) Ss2aj aq
JOU ISNW |OOOPVL 40 ZI 'B Il SJOUlWIa; Uaamyag aoUD;sisay ‘Zz
"yndul o1az yyim jndyno o4az 40) pda} aUO UI Y.OOZ 0} 0187

"$404SIS@y BuloUD10g gWY-OVW ‘| :S2;0N

QZ)
6 SS-SbI-Z0lE NV
@ yndu;
6)
© @
@ ‘ON'ON ©
: dels ® eee -
édaa ™@ ©oo! ©
9-1S ws
@)
XL >
(ey
Se edkj ou;

Bseljduy
oyeuboW

S91-€Obb-92 | Agog
uoagiy enie | *¢
onuas P7S40

HOLS
4OL)S

SI6Sb Z1AV 6I-V Din

JBUOIJISOg O1DIYy +0 MHI

V-35

SJowlojsuvil, [eloeds jo sfivjed ‘v)-F0g edAL sotjt]dwy oasoeg — gf ound1y

Ow

"1°D SOA 9 edualajay sajawoysel ET '2T ‘TT
SHOAS9 OT 018
SHOA §°8Z L289

SHA 022 S
S}OA STT 17
uowwog £

00b SHOA STT 781

Xawso4 BZ ‘ON
padde| sayueg ‘sun 076

Xaws04 9z ‘ON
Sun! O21

Xaws04 OZ ‘ON
padde| sajuag ‘sun 92

X9WJO4 8Z “ON
padde| sayuag ‘sunt 47
BUIPUIM apisyng

©

©? oo

(Aiewid uo speay youl: Z])
Guys jeulmay

g
y
$9109 |ISIad!H PT-H
asnoysuljsam JO Wed | UO punoK s|!og
; z
9
X9u04 9Z ‘ON

i suIn 09b
8
6
Ol I
Il y

! AluO Sulpuim aoualajay
21 UO plays 21924801499) 3
el | mee

Jawsojysuel | JaMOg

Aewiid

Qo © ©

Aiepuodas

@

dijyg jeurwiay

"sa109 |!SIad!H pI-H
BSNOUBUIJSAN JO S11eq-z UO PUNOK s|109

00% “HOA ZS)
JawsOJSued | UOIZE;OS| 10,0)

X9WJ04 QZ ‘ON
SUINL OOE

Xaws04 QZ ‘ON
sun! QOE

Asepuosas Alewtid

V-36

Dynamometer

Dynamometer Adapter Plate

ras : % aa Bearing _ 7

Limit Switch

Figure 44 — Servo Unit Type 304-8A, Side View with Attachments

Digital Shaft Position Indicator.

Control and
Readout
Potentiometers

Servomotor

and

Tachometer.

Figure 45 — Servo Unit Type 304-8A, Top Oblique View

V-37

weiseIqd o1yeWoYoS ‘VR-FOg edAL, IU) OAIES — QF oNdIy =

Jaduine
O-W AGIT

lJ yeys jndjno jo
ES = eee =

uaa pue pay

~ 00 AS°/S

yoe|@ + pay pue oe g

"GZ 6092
YO}IMS PleOqse}S-WOdq a) ~
yoeld
Jaljl[dwy OAlag OL

~ 00F ASTI

/
/
/
/
ooo

up jnopeay oL d9T-E0bb-92
aoreorr9z os MO||9A uogq!y nig
uoggiy ania ==

aduelQ
B2-S29EZp adh] yJoyseay

10}2/2U95)-10}0W :a}0N — 00F ASTI

t---

G) uMolg
Gy) oni Sees ek ed

V-38

Motor-Generator

Red Stripe Indicates and
Motor-Alternator

Connections

Positive Buss Battery Charger
Connector,

Figure 47 — 10- and 40-Ampere-Hour Batteries, Side View

Starting Circuit
Connector
Under Door

Single Phase Outlets

3-Phase Outlets

Indicating
Fuseholders

Figure 48 — Motor-Alternator and Control Unit Type 304-9A, Side Oblique View

V-39

Starting Circuil
Connector

—
2
wo
v
3
em
3
2
mM
3
2

ion Motor

Propuls

to
Motors

nnections

Co

on

Propuls

-10A, Side Oblique View

Figure 49 — Motor-Generator and Control Unit Type 304

V-40

wBIseIg o1BWeYyos ‘weisXg uoIs[ndoig — Q¢ eansIy

a9
mH

punoss | 1-8
OL Uld

29UU09

48S 9-W UO pajunow
$10}9@UUOD Ulg-9] PUD -g 40} SUO1{DBUUOD Uid

yoauuo0d 15

diajs jOUIWJaL

Splai4 s0;0W

(S)40JOW 1294044 0) aSNS

Punodd Oj Suid
‘ON ||D 2QUU0D :3jON

4ojojnbay
40433 OL

48S 10jDJ9Ua5-40j0W

| 8JON 88S

Z ON jluf 405 abpiug

IYBIy 10 Pa}od!pUI SO jiNd419 aBpiig
4d90xX3 WaSKS 440g 0} jOdjUAP)
‘WayshsS uoisindosg punoqinj\s oO,

4 4

vGzi-™SO
ION Jun 405 aBpiig

UNS- MS

vOlb-™SO UAb-M?S

ou

pBOINI

(YOl-2)vOe- MOI

01 "AaY

econ

x'
ney 4

\G, 2190;de004,
tk

Z aj0N 8aS

49S 10jDU1a4|y-20j;0;W

‘Kojas Aojap awl, puovas-2 — OGL
*Aojas Aojap awiy puosas-| - 9SQL
“SJ9S 9-W PUD W-W BuljJ04S 40) g aj20jdada1 0} Yay) PUD Vy 9/9DjdaDa) Oj pajoauUOD Bnd ajqop

*40JD9UUOD UIUJIM Jaquinu uid jONpIAIpUl Sjuasaidas
JaqWNU PUuDdaS 40j9aUUOD Jad Sud JO JaquuNU Sjuasasdas 3/9419 UIYjIM |OJQWNU jS4!4

ie)

:3)0N

Se i100

(paddoy Jojsisay VOGO-1) VSIO

—>>4
| 240N 88S = uoujasn4
ze # |
16) uy
ayos-)jo4—t
pBOINI We
|
Ea 4
WW, 2190;da00y f ai PAN TN aw vos
6nid ay, YSyOl 2h Sy b ae
Z P10N 22S Y o4
y
== 00L
(paddoy 40\s!594 OG'O-1)
vusio Aiddns ~O9
OS ~€ A009

owos t

—

SIOA Bb-bb ABD)j0A INdjnO
4absoyy Aiayjyog

V-41

Power Supply Test Points

Figure 51 — Readout Unit Type 304-11A, Rear Oblique View

S giltput e. OUR ge : our @® Subcarrier

wid
ton : ton
A0.KG.. 6 :

Oscillator
Adjustments

Figure 52 — Readout Unit Type 304-11A, Top View

V-42

Figure 53 — Readout Unit Type 304-11A, Bottom View

V-43

WBIsBlg oIJtWeYyos ‘VT T-FOg edAT uM ynopeey — Fo oinsIy

€-90Y adj ‘syiun jouju09 Ouuajuy Jayjlwsuod] OL
4Oj{O||!ISO paas jUOUOSad WYOJ4 SA-1A “S 162-9N 88-9nN
PajOdipui so jdadxa jjom Z/| SsOjsISad |iy 2

PLEZZHW AdA) plaijwinsg-4a) 40g SAOjaJ |iy | :2/0N Cc = ©)

1001 add soiwoudg-ajay =

sajuiwsubd, Of @DOODIOPO

222-92) jouayduiy
oS I

Ul OjnpoW
340040
sayyiwisuo. b

ey ee ee
Fal al

HS HS

dZ-Sbl-O¥ 209 UouunD
sd200b ASII

458.

S¢-S2l-ZOlENY
uo) ai0ds

sd2GOLb
PQIS- 140g

joubis,

AGOI

ZOOS aw?
Buluuny Jappny

()

@

ASTI ©

AG2l 2

vsOrc9 es

z Oo
l2b -SH

adj poly

:

d9-Sbi-cOle NV

162-90
indu| pow

ssa)
0
002

5002 YL IOdsudsy

g et

AOSI+

GOSIY41 2dsuos

S}1N9419 jYyB!7 Buryoou, OL

OO
OO
i

Ss
fs
s
x=}
2
iO

73109NS YS

S9l-bOvb-92
uoqa!y anig
4appny

(©)

WLz adil 40\0)79S0}
42|44099NS YW3)

ie
Heats

(1)
)
(3)
(©)

(v)

3. ee
udwiy

(Q)| wd pais

(3)

10)

~} 40j9auU09
|. J ul edwin

861-92!
jouaydwy

wds js0g

~ 7 4ojoauu09
j Ul sadwnp

861-92l
jousyduy

jeuuoyo
asods

b= >
40\98uU05

AQSI+0 ( )4--! ul sadwnp

V-44

Figure 56 — Error Regulator Type 304-134, Top View

V-45

Test Points

Ss
ae

Figure 58 — Error Regulator Type 304-13A, Bottom View without Card

V-46

weIsviq oIBUEyoS ‘WET-7OE CAAT, JOpB[NSoy JONG — GG oINsIYy

dZ-Stl-OV Z0V9 uouuDD

PBOIN| SCOOPS

§10j81S81 UNIO payisodap sajouag y
PajOU SO 4dadxKa 440M Z/| S4OjSIS94 IIT
PSOINi

B880INI

‘OSI
SSEINI i OOS

mi woe! §SI-acgz v.00!

9.

DAQZ

40jD4BUSH JOJOW

AOS! 3721

*40j98UU09 10-2 Z0-Eb1
f—— ——————--—-----— i UO sjOUlWwsa} juasesdas aul| Paysop jo
| SPOa| UO $4a)497 ‘p400q jIND419 payuld UO
| 240 aul| paysop ul4yim sjuauodwod Wy, AOI-

5

VEIN

aoupj0g

= d8-lObb-92 vORglY anid

V-47

JeuJojsuvil, [etoedg jo s[rejod ‘VEl-F0¢ edAY, soye[nser Jouy — Og oindiy

dig 19151}98y
pue jeulwsal

Bo

| | esorni] |

xauJo4 OZ Jaquny

X9wsO4 9Z JaquNN

X9WJO4 97 Joquny
] Joquiny Aiepuodas

"$3109
jisiadi pT-H asnoysuljsay
jo sited 2 uo punom sj109

9
SUN]

I
GT
Sun] ge

v1
sun} pe

el
sun]

él
sun g¢

II
SUN f

€ Jaquny Alepuodas Ol

6
sun] ZS
Z Jaquny Alepuoras 8

L
sun} $S
9
sun #S
g

sulin] 012

vA
SuIn| OZ

e
sunt 02
¥

Xow04 97 Jaquinyy
Mewtd

V-48

UG 88C/U UG 88C/U

Amphenol 26-4302-16P Cannon KO3-I6-SN

AN 3106-14S-5S

Tone

Note:

Cable!

53
RG-58/U__(2Req’d) To):
(O}F Re
Length - 6 feet 78
Cable 2 3
Os ©}
J} Length -9 feet BX Ss
al Nooo Cable 3
©) Beldon 8431 ©) é
ol : ic Orr
O; cs +@ {2
© 24 ©) 3
Length -6 feet
SS Nalzo Cable 4 -——
Oommen nO)
Qr—-2 ‘@
© 20 +3)
Os r© |é
4 7
® Beldon 8431 @ 8
@14 © |
2 oe Oo):
O— +® |
&
Oj; +O)
Sen 1 : @
(5) 24 +((5)

Length — 55 feet

Cable 5
Belden 8403

AN 3106-14S-5P

Length - (2 feet

Detector Test Cable
Amphenol 26-4301-24S to 26-4100-24P. All leads wired
straight through. Leads 3,14, and I5 are No. 20 wire, all

others No. 24. No connection to Pin 16. Cable length -
22 inches.

; Cables 3,4, 6,7, 8,13 and the test cable made up of sepa-
rate leads enclosed in vinyl tubing.
Cable lengths shown are suitable for models up to 30 ft
long. Shorter lengths may be used if desired.
Cable numbers refer to those shown on interunit cabling
diagram.

lol No. 20 Cable 6 fo]
@) Beldon 8404 (2)
® @
@ @
©
2 @) ()
Jo] = 16
E 24
ae omen
:
©+ Si 8431 (5)
ito
© Length — 6 feet
lot No, 20 (2 Read) ro)
(2) Beldon 8422 (2)
@ ©)
ote
oO © 24 1-6)
s|O-—# 1@
z 24
2|@ @
> © 24 ©
3 le
24
@—* ®
L_ Length - 6 feet
Cable 8
(2 Reqd)
: Belden 8422
“ 24
Length — 4 feet

Cable 9 (2 Req'd)

Four conductor No. 14 or heavier. Terminal lugs at ends to fit

motor-generator and motor terminals.
Length — 9 feet

Cable 10 (2 Req'd)

Two lengths of heavy duty wire. Fed. stock No. 6145-260-9437.
Terminal lugs at ends to fit battery and motor-generator terminals.

Length - 40 inches

Amphenol 26-4303-16P

Amphenol 26-4301-I6S

Amphenol 26-4301-8S

Cable II

Two lengths of No.6 battery cable. Terminal lugs at ends to

fit

Cannon XK-3-I1

Amphenol 26-4304-32S

Bendix Type TZL-3

Cannon
CA06-BQ-14S-2P

Connon
CA06-BQ-14S-7P

battery and inverter terminals.
Length — 4 feet

Cable 12

Length — 10 feet

Cable !3

Beldon 8431

24

Length — 14 feet

RPM Pickup ond Cable 14
(2 Req'd)
Beldon 8403

60% of Turns

Start of Winding

Length - 42 inches
Note: Type and length of this cable critical

Cable 15
Belden 8454

Length — 10 feet

Cable 16
(4 Req'd)

Belden 8453

©+
+
@H
®
©)

Length - 10 feet

Figure 61 — Cable Details, Schematic Diagram

V-49

Amphenol 26-4304-32P. Cannon XK-3-!1

Amphenol 126-195

Cannon
CA06-BQ-14S-2S

Cannon
CA06-BQ-14S-7P

ea

vir
i ay
Aca

vai
wisi nai
; has

PART VI — REFERENCES

1. Functional Specifications for a Radio-Controlled Model (545:FDB:omc) (Sep 1955).

9. ‘‘An Engineering Study and Design Specification for a Radio-Control System for Model
Boats,’’ Engineering Project No. E-018 (Sep 1956).
3. ‘*The Theory and Application of FM/FM Telemetry,’’ Distributed by Bendix Aviation

Corporation, Pacific Division, North Hollywood, California.

4. Instruction Manual, Crystal Controlled Transmitter Type 1001 A, Tele-Dynamics
Inc., Philadelphia, Pa.

5. Instruction Manual, Radio Receiver, Type 2001 Series, Tele-Dynamics, Inc.,
Philadelphia, Pa.

6. Instruction Manual, Demultiplexer Type 2201C, Tele-Dynamics, Inc., Philadelphia, Pa.

VI-1

ence
i

Sava
cru |

INITIAL DISTRIBUTION

Copies Copies
5 CHBUSHIPS 1 Dr. F.H. Todd, Dir of Ship Div, National
3 Tech Info Sec (Code 335) Physical Lab, Teddington, Middlesex,
1 Prelim Des Sec (Code 421) England

1 Sci and Res (Code 442)
1 Admiralty Res Lab, Teddington,
1 CDR, USNOL Middlesex, England

1 DIR, USNRL 1 Admiralty Experiment Works, Haslar, Gosport,
' DIR, USWaterways Exper Sta England, Attn: Mr. S.G. Lankester

1 Dr. Siegfried Schuster, Head, Berlin Model

Basin (Versuchsanstalt fur Wasserbau und
1 SUPT, USNA Schiffbau, Schleuseninsel im Tiergarten,
Berlin 87, Germany

1 CDR, ASTIA, Attn: TIPDR

2 Tech Dir, Davidson Lab, SIT, Hoboken
1 DIR, Exper Naval Tank, Univ of Mich.

1 DIR, Scripps Inst of Oceanography, Univ
of Calif, LaJolla, Calif.

1 Dr. H.A. Schade, Dir of Eng Res, Univ
of Calif, Berkeley

1 DIR, Woods Hole Oceanographic Inst,
Woods Hole

1 Admin, Webb Inst of Nav Arch, Glen Cove, L.I.

1 DIR, St Anthony Falls Hydrau Lab, Univ of
Minn.

1 Dept of Naval Arch, Univ of Calif, Berkeley
1 CONVAIR, Hydro Res Lab, Attn: Mr. C. Jones

1 DIR, Hydro Lab Nat! Res Council of Canada,
Ottawa, Canada, Attn: Mr. S.T. Mathews

1 Dr. Georg Weinblum, Universitaet Hamburg,
Berliner Tor 21, Hamburg, Germany

1 RADM R. Brard, Directeur, Bassin d’Essais
des Carenes, 6 Boulevard Victor, Paris (15e),
France

1 DIR, Nederlandsch Scheepsbouwkundig
Proefstation Haagsteeg 2 Wageningen,
The Netherlands

1 Prof. J.K. Lunde, Skipsmodelltaken, Tyholt
Trondheim, Norway

VI-3

“M SOTIWYD ‘uBujjoy *]
(orneuojny)
swejsXs [oquog —
Sieppny — sjepow drys “¢
1O3UCS)
— sweyshs uorsjndoig
— sjepow diyg “4
8786} [OPO
— josquog — (outs)
swejshs uorsjndoig *¢
s[enusw
worjonaysuy — (o1y8woyny)
sSue}SAS [OIWUOD °*Z
udiseq — (o178wWo ny)
swajsks [oUOD ‘T

“M SOTIWYO ‘uBWJOY *]
(oryewojny)

sueysXs [o1]U0D —
Sioppny — sjepou dtyg “¢
[o3uog

— suieysXks uorsindoig
— sjepow diys “F

8980} [OPOW

— Joaquog — (eutiey)
sueysks uorsjndoig ‘¢g
s[enusw

uorjonaysuy — (o1yBWOyNny)
sule}SAS [OIUOD °*%
ustseq — (o1;8wWI0yN yy).
sue3sks [oU0D “T

‘popnjour oie ‘suviderp

oreueyos pue sydvidojzoyd YIM ‘SuoryoNaysuT eoUBUEWUIBU

pus uorqviedo ‘uorjz8]]BySu] “weysks eye;duo0o ey} Seqriosep pus
‘Apnjs dulieoutsue ey) JO MerAel jotaq ¥ Sepnpour yJode’ sty],

*Sel1e}}¥q WNIWIpBo-jeyoru

9]qves1BYdeI ojI]-duo] Aq peiomod st weqsks eyy, “[opou

9Y} JUrT[OIUOD UT 10;BI1edo EY} epInd oy efOSUOD EY) UO peyBoIp

-ur ese wii qjeys uors[ndoid pus ‘ewry duruuni seppni ‘uorytsod

Jeppny “pepraoid ei s;euuByo [oIQUOD-uOIS{Ndold [BuUOTyIOdo.d

OM) pus [euUBYS [o1}UOD-Jeppna [wUOTIOdo.d y ‘swesks uorstnd

-O1d MEIOST[NW JO eTFurs yIIM poesn oq Avu It WBY) OS poSuRsIB

ST puw YyJSUE] UT Joo} YE 07 GT ATO}BWIxOIdde wos Zurdues spepow

ul esN JOj pousisep si weqshs eyy, ‘sdtys eowjins jo sjepou
SutuuNd-selj JOJ weySAs JoIQUOD-OIpBi B SeqIIOSep y10deI STYJ,

GuldISSVTONN

“sjoi ‘-saderp ‘‘snqjr “dg ‘xt 0961 qoq

“uBUzJOTT “MO Aq ‘SdIHS AOVAUNS AO STAGOW ONINNAY
-dduad YOd WALSAS ONIUGMOd GNV IOULNOO Oldvu

“ulspg [2pow soy Any plang

“6SEL Hodey

*pepnjour oie ‘sueideip

oIyBWeYyoS pus sydvidoqoyd yIIM ‘suorjonIysuI eouBUEJUIBU

pus uorqeiedo ‘uorje][B{Suy “wezsks eje[dwWoo ey) Seqiiosep pus
‘phys DUlIeeUuIdUS OY} JO MOETAeI JolIq B SepntoUT j10deI STyT,

*Sel10}}¥q WNIWpBo-[eyoruU

e]qvesIByoel ejt]-duo] Aq peiomod st weysks eyy, *[opoul

24} SUI][[OIJUOD UT 10;BIed0 EY} epINd 07 efOSUOD ey UO pezBOIp

-ul e18 widi 4jeys uors{ndoid pus ‘eur duruund Joppni ‘uorztsod

Jeppny “poeptaoid ose syouusyd [oqUOO-uoTSs{Ndod [euorqi0doid

OM} pus [eUUBYS [o1}U00-Jeppna [BUOTI0do4d y ‘swezsds uorstnd

Old MeJOST][NW JO ey durs yIIM pesn oq Avw 41 4By) OS pesuUBIIB

SI puv yysue] ur yee} (g 07 GT Ajoqeutxosdde wow Zursuei spopow

UI ESN JOj peudIsep st wezsds eyy, ‘sdrys eovjins jo sjepou
duluuni-9e1j 10} weySAs [OI}U09-Orpei B SeqtIOSep y4Ode1 STYy,

GHIMISSVIONQ = “Sjoa “-saderp “snqqr “dpe ‘xt “0961 qoy
“uBwjjoyy “M"°O Aq ‘SdIHS AOVANNS AO STAGOW DNINNAU
-ddud YOU WALSAS DNINAMOd GNV TOULNOO OIGVU

“6SEL oday «= ulspg japow 40jADy pang

“M SO[IBYD “weWyJoH “J
(orBwojny)
sweysks [OIUOD —
sieppny — STepow drys “¢
Joajuoy
— sweyss uors;ndoig
— sjepow drys “>
5780] [POW
— josquog — (eure)
sweyshs uors[ndoig “¢
s[snusw
uorjonaysuy — (o178WOyNy)
suiejsAs [OUOD *Z
ustseq — (o1y8wWoyny)
swejSAS [OQUOD “T

“M SOTIBYD “ueuyjoy “]
(oreu0yny)
swezshs [OIyUOD —
Sieppny — sTepou diyg “¢
Jonu0g
— sueysks uors;ndoig
— sjepou drys “4
8380} [9POW
— o1quoD — (eutseypy)
sue}shs uors;ndoig “g
s[enusu
uorjonyysuy — (o1Bwoyny)
sueyshs JOIUOD *%
udiseq — (o1y8wWo ny)
swejshs [OUD ‘T

*popnour oie ‘sureideip

otyeueyos pue sydvadojoyd yyIM ‘SuoTjonSUT sOUvUeUIBU

pus uorqviedo ‘uonjBi{eysuy “woesks eyetduioo ey) Seqiiosep pus
‘Apnjs sutieeurdue ey} JO MerAel Joraq B Sepnyour 4iodoa sty,

*Se1J0}]8q WINIWpBo-[exoru

e[qvesiwyoed ojt]-duo] Aq peiomod st weyshs eyy, ‘{opou

8Y} But][oIyuoo ur 10;81edo ey} epind 07 efosuod ey UO pezBorp

“ul eae wii qjeys uors{ndoid pue ‘owt duruuns seppni ‘uorytsod

Jeppny “peptaoid oie sjouuByo [oIquOd-uots[ndoid [euorqiodoad

OM) pu’ [euUBYD [oI]U00-Jeppna [eUOTI0doId y ‘swezsds uorstnd

-o1d MOJOSI}[NW JO e_Furs YIM pesn eq ABW 4I BY OS peSuLIIB

SI puv yysue] ur 4003 Og 07 GT AToqBuTxoidde wow Zursuei spepow

UI esNn JO] poustsep st weyshs oyy, “Sdtys eovjins jo sjepow
Sutuuni-eedj Jo} we,sXs [O1\UOd-oIpel B SoqtIOSep j10deI STU,

GaIaISSVIONA “sjoi “‘saderp ‘‘snq[t “dp6 ‘xt “O96T qoq
“uBugjorT “M°O Aq ‘SdIHS AOVAUAS AO STHGOW DNINNOAY
-dadud YOA WALSAS DNIMAMOd GNV IOULNOO OldVu

6SEL quoday *ulspg japow 40 Ady plang

*pepnjour ois ‘sueideip

oIyBMeyos pus sydvadoqoyd YIM ‘SuOTyONISUI CoUBUEqUIBU

puv uorqeiedo ‘uonei]eysuy “weysXs eyefduioo ey) Seqiiosep pus
‘Apnjs Suleourdue oy} JO MeTAOI Jotaqg B SepnpourT qiodel sty y,

*Se110}}8q WINTWIpBo-[exorU

e[qvesiwyoe ojt]-duo] Aq posemod st we3zshs oy, *[opoul

8Y} BuIT[OIyUOd UT 10}¥1edo GY} EpInd 04 efosUuOd EY} UO peyBorp

-ul ese wdi 4jeys uors{ndoid pus ‘eut) Suruuns Joppni ‘uorytsod

Jeppny “peptaoid oie syeuusyd [osjuo0d-uors{ndoid [BuotyJodo.d

om} pus [euuBYyd [O1j}U0D-Jeppni [wuoTyJodoid W ‘sueyss uoIs{nd

-O1d MEIOST}[NW JO e[Furs YIM pesn eq Avu 4I 9BY} OS pesuBIIE

SI puv yydUe] UI 300) Og 07 GT AToyBUIIXOIdds Woy Zurduvi sjopow

UI esN JO} peudisep si weyshs ey, “Sdrys eovjins jo sjepow
SuluUNI-eeIj JO} we4Sks [OI}UOD-OI pei B SeqIIOSep y10de1 SIY,

dalaISSVTONN “sjoi ‘“siderp ‘-snqqt “dé ‘xt “096T qo
“wewJJOlY “MO Aq “SdIHS AOVAUNS AO STAGOW ONINNOU

“dada YOU WALSAS ONIYAMOd GNV TOULNOO Olavy
“6SEL sodey “ulsog japow s0jADy plang

renen

i i a1
De et Lah eae ee ayy!" pe

{
i
{
i
ty
f on i
et
i Lt
1 F 13
j ’ A g
; ‘Bi. ‘
| ;
{ ‘ 1 i a
jl } :
| «
< h i :
i ‘
ait i i he ar}
y my : 1 '
. i { he ‘
i i ;
; ‘] { J ‘
ve | :
i " ; i
Ab itd ; Ae) ¥ ligne

wae

“M SOTIBYD ‘uBUZJOH “]
(o1y8wW0jny)
sweysXs [oquoD —
Sieppny — s[epow drys “¢
Joaju0g
— sweyshs uors[ndoig
— sjepow diyg “F
SI SO1TOROIN
— joaquog — (eutieyy)
suiejshs uors[ndoig “¢
s[snuew
uoronaysuy — (o1yBWo ny)
suleyshs [OIUOD *G
udtseq — (o1jBwony)
suie}sAs [OUOD “T

“M SOTWYD ‘uBUyjOH “]
(orswoyny)

sue}sXs [01qU0D —
sieppny — sjepow drys °¢
jonuog

— sweyshs uors[ndoig
— sjepow diyg “4

5750] [OPOW

— Joaquog — (eurtieyy)
swejshs uorsindoig “¢
s[Bnusu

uotjonaysuy — (91) 8wWo ny)
sue}shs [0IJUOD °*G
udtseg — (omBwony),
sueyshs [OMUOD ‘T

*pepnyour oie ‘suieideip

o1yeueyos pus sydvasojoyd yyImM ‘SuorjonIysuT eoOUBUSJUIBU

pus uorjeiedo ‘uorjei[Bysuy ‘“wezSXks eye@[dwod ey} Seqiiosep pus
‘kpnjs SulIeeuIduS OY} JO MOTAOI JolIq B Sepn{our yiodel sty y,

*Se110}{Bq WNTWpBo-[exotu

e[qses1eyool ojt]-duo] Aq peiomod st wezsds oyy, *[epow

84} SUIT[OI4UOD UT 10}¥I1edO0 BY} EpInd 0} e,OSUOD ey} UO pezBoIp

-ul ei8 widi 4jBys uors[ndoid pus ‘eurry duruuni Joppna ‘uoTytsod

Joppny ‘“pepraoid ei syeuuByd [oIyuOd-uoIs{ndosd [BuoTyiodoid

OM] puB [euuBYO [01]U00-Jeppn4 [BUOTzIOdoId y “suieySAs uoTS[Nd

-O1d MeIOSI}[ NU JO E[GUTS YyIIM pesn oq ABU 4 9BYy) OS pesuLIIE

SI pus yysue] ul yoo} (g 07 GT AyTeyBMtxoidde woj Sutduel sTepow

UI ESN JO} peustsep st wezsds ey, “Sdrys edBjins Jo sjepow
sutuund-9eij JO} weySAS [01]U00-OIpB1 B Seqtsosep y1O0de1 SIyy,

*sjoi ‘*saderp “snq[t “dpg@ ‘xt

ddaIdISSVTONN “0961 Geog

“uBuyjory “M4 °O Aq ‘SdIHS AOVAUNS AO STAGOW ONINNAY
-daud YOU WALSAS ONINAMOd GNV TOULNOO OIGVU

“uIsDg Japow 40jADy plang

“6SEL oday

*pepnour oe ‘suvideip

o1yBweyos pus sydvidojoyd yim ‘SuOTyoONyySUl eOUBUEIUIBU

pus uorjviedo ‘uorB]]B}Ssuy ‘weysks eye[dwoo oyy Seqiiosep pus
‘kpnjs dutiooutdue oy} JO MOTAOI Jorig B SOpn{our y10deI STYyy,

*Se1j0q}8q WNTWpBo-[exorU

e[qvesisyoos ojt]-duo] Aq pesomod st weysks eyy, “[epoul

8y} SUI[[OIJUOD UT 10j}¥1edo eYy epInd 0} e[OSUOD ey UO peqBoIp

-ul 018 widi 4jyeys uorts~ndoid pue ‘eur duruuni Jeppna ‘uorytsod

Jeppny ‘pepraoid ee syouuBYyo [OIQUOD-uOTS{Ndoad [BuOIqIOdold

OM} pus [euuByd [OI1jUOD-Jeppni [BUOIyJodoid W “swezsds uors[nd

-O1d MOeIOSIZ[NW JO oy FuTS YIM poesn oq ABw 41 4BYY OS pesuBIIB

SI pus yysue] ul 4e0j (Og 07 GT AToyBuIxXosdde woj dursusi spepow

UI ESN JO} peusisep st weyshs oyy, “sdtys eovjins jo sjepou
dutuuni-eelj 10} weySAs [01}U00-OIpBl B Seqiiosep ylodel SsIyy,

ddaIdISSVTONOA “sjoi ‘*saderp ‘*snq]t “dy6 ‘xt “O96T qeq
“uBujjoy “M°O Aq ‘SdIHS AOVAUNS AO STAGOW DNINNOAY

-AduNd YOA WALSAS DNIUAMOd GNV TOULNOO Oldvu
“6SEl sodey ulsog japow s0;ADy plang

“M SOpPwYD ‘uewjjoy *]
(o1y8woyny)
swe}sks [oUOD —
Sleppny — sjepow drys *g
Jo3Uu0D
— sueyshs uors[ndoig
— sjepow drys *F
5780} [OPOW
— josquog — (eutieyy)
sue}shs uotstndoig “¢
s|BnuBul
uoronayysuy — (o1y8WO Ny)
suie}SAs [OUOD *%
ustseg — (o1Bwo ny)
suejshs [ONUOD “T

“Mm SeTwYD “uBUJJOH *]
(onswojny)
suieyss [OI]U0D —
Sieppny — sjepow dryg °¢
jonuog
— sweyshs uors[ndolg
— sjepow drys *%
5780} [OPOW
— Joyquog — (eure)
suiejshs uors[ndoig “¢g
s[enusu
uononaysuy — (o1j8WoIny)
sueyshs [OUCH °%
udiseg — (o1y8wWo ny)
sueyshs [OUOD ‘T

*pepnjour oie ‘sueideip

oBWeyos pue sydvadojoyd yyIM ‘suorjoNsySuI eoUBUeUIBU

pus uorjsiedo ‘uorzB]][Bysuy “wezsAs eqye;duosd ey} Seqiiosep pus
‘kpnjs SULIOCUIdUe OY} JO MEIAOI JolIq B SepnTouT 41Ode1 sty y,

*Selle}jeq WNTWpBo-[eyoru

e[qvesieyoel ejt]-duo, Aq peiomod st wejsks eyy, “[Opoul

94) Sul[[O13UOd ur 1038I1ed0 oY} epIns 07 e]OSUOD ey UO peqeoIp

-ur 018 widi 4jeys uorts{ndoid pus ‘ew1} Suruuni Jeppni ‘uorztsod

Jeppny ‘*pepraoid ei8 sjeuuByd [oI}U0d-uOTS[Ndoad [BuOoTzi0dojd

OMY pus [euuByd [O1]U00-Jeppni [BUOTzIOdo’d W ‘*sweqysAs uoIS[nd

-O1d MeIOSTy[NW JO e[dUIS YIM pesn oq ABU 4 BYY OS pesuLIIB

SI pus yysuUE] UI eo} Cg 07 GT ATeyBuIxoidde wo duIsuvi spepow

UI ESN JO} peustsep st weyshs oyy, “sdrys eovjins Jo sjepow
duluund-9e1j 10} weySAs [01}U0D-OIpBl B SeqiioSep ylode SIyy,

GaIdISSVIONA “sjol ‘sadeip ‘‘snq[I “dp6 ‘xt “0961 qoy
“uBujjory “MM °O Aq ‘SdIHS AOVAUAS AO STAGOW DNINNOUY
-AdUaA YOA WALSAS DNIVAMOd GNV TOULNOO O1GVU

“6SEL pioday “ulspg |>Pow soy Ady plang

*pepnoul oe ‘suividerp

oIWBUEYyOS pus sydvisojoyd yIIM ‘SuOTJONAWSUI OOUBUEqUT BU

pus uorjsiedo ‘uorBi[BjSsuy ‘weysAs ejo[duIO0o ey} Seqtiosep pus
‘Apnjs SULISOUISUS OY} JO MOTAGI JolIq B Sepnjour yiodel sty,

*S01J0}}8q WINIWpBo-[eyoruU

e]qBves1Byoo ejt]-duo] Aq posomod st we_sks oyy, *[epow

8Y) DUIT[OI{UOD UT 10381Eed0 EY} EpINd 07 ej[OSUOD EY} UO peyBoIp

-ul ei8 widi 4j8ys uorstndoad pus ‘eult} Sutuuni Joppna ‘uorztsod

Joppny ‘“pepraoid 618 sjeuuByd [0I}U00-uOTS{Ndoad [BuoTzI0do1d

OM} pus [OUUBYD [o1WUOD-Joppni [BUOTIJOdo’d W “swieyshs woTS[nd

-Oid MeJOSTY[NW JO eTSUTs YIM pesn eq ABU I BY} OS peduBIIB

SI pus’ yjdUE] UI 4e0) (Og 0} GT AToyBuTXoIdde wos durdusi spepow

UI ESN JO} pousIsep si weyshs oYy, “SdIys eovj’Ns Jo S[epoul
sSutuuni-eejj 10} we4ySAsS [01]U09-OIpBl B SeqtIOSep j1odel Sty,

daldISSVTONN “sjoi ‘-saderp ‘snq[t “dpé ‘xt “096T qe
“weujjory “M"O Aq ‘SdIHS AOVAYNS AO STUGOW ONINNOY

-dddad YOU WALSAS ONIYAMOd ANV TOULNOO O1GVY
“6SEL yoday ‘‘ulspg japow 40]ADy plang

“M SOTIWYD ‘uBUyjoy “|
(orneuojny )
swe}shs [oUu0Dg —
Sieppny — sjepow drys *¢
[oayuog
— sweysks uorsjndoig
— sjepow drys “F
5780} [@POW
— josquog — (eurtieyy)
swejshs uors[ndoig “¢
s]enueu
uorjonaysuy — (o1BwWO ny)
suie3sks [oUu0D °*%
udIseg — (o138Woyny)
suleySAS [OMUOD "T

“M SOTIBYD ‘uBMjjoy "]
(o1Bwoyny)
suie}sAs [oWUuOD —
Sieppny — sjepow diys *¢
Joauog
— sweysks uorstndoig
— sjepow diyg “4
5750} [9POW
— JorjquoD — (eutieyy)
sweishs uors[ndoig “¢
s[Bnusu
uorjonaysuy — (oty8woyny)
sueysAs [OUOD °Z
udiseq — (o1j8wony)
sua4sks JoUOD ‘T

*pepnour oie ‘suvideip

d1yBWeYyoS pue sydvidojoyd YIM ‘SuoTJONASUI eOUBUOWUTBUI

pus uoryeiedo ‘uorje][eySuy ‘we}SXs eje[dwoo eyy seqriosep pus
‘Apnys Sutieoursue oy} JO MerAes Jorsq & Sepntout ysodel sty y,

*Selleqjeq WnIWwpeo-[eyxotu

e]qBesIBydeI ejt]-duo] Aq pesomod st weysks oy], ‘[opow

8Y} SUTT[OIUOD UT 107BI9d0 0Y) EpInd 07 e[oSUOD ey} UO peyworp

-ur eae wii qjeys uors[ndoid pue ‘eur dutuuns soppna ‘uotytsod

Jeppny ‘“pepraoid ei sjouusyo jouOd-uots{ndoad [Buoryiodoad

OM} pu® [oUUBYO [os UOO-Jeppna [BUOTyJOdoad Vy ‘swesXs uors[nd

-0id MOJOST}[NW JO eTSUTS yyIM pesn oq ABW 41 7BY} OS poduBIIB

ST puv ySUE] UI J00j Og 07 CT ATe]BUITXOIdde Woy SuIduei s;opow

ul esn JOJ pousisep st weyshs oy], “Sdtys eowjans Jo sjepoul
sutuund-eedj J0j weySAs [oOIQUOD-OIpBi B SeqIIOSep 410de1 SIYJ,

GuldISSVTONA

“sjol‘*sidvip “‘sni[t “dé ‘xt ‘0961 qoq

“uBUgJOT] “M°O Aq ‘SdIHS AOVAUNS AO STHGOW DNINNAY
-dduad YOH WALSAS ONIUAMOd GNV IOULNOO OIldvy

“uIsDg Japow 40)AD] plang

“6SEL Hodey

*pepnyjour oie ‘swvideip

dIVBWeYyoS pus sydvidoqoyd yyIM ‘suorjonsysul eouBUE UIs

pue uolzwiedo ‘uolzB]][BISU] “wWeSXsS eja[duIOo oY} Seqisosep pus
‘Apnjs SulIeourdue 64} JO MeTA@I Jotaq & SepnzouT yJode sTyy,

*Se1le}}¥8q WNIWpBo-j,eyYoru

9] qvesisyoe ojt]-duo] Aq peiomod st weysks ey, “[epou

84} SUT[[OIQUOD UT 10;¥Ied0 EY] epINd 07 efOSUOD ey) UO pezBoIp

-ul e18 wii 4jBys uors{ndoad pue ‘eur Suruund Joppna ‘uorytsod

Jeppny “peptaoid ese syouusyo [oIqUOd-uoTs{Ndod [BuoTzI0doid

OM} puB [OUUBYD [041]UOD-Jeppn4 [BUOT}IOdoad Vy ‘swezsXs uorstnd

-O1d MOeJOST{[NUW JO eysurs yIIM pesn eq ABW 4I 4BYy OS posuBIIB

SI puB yysUE] UI 400} Og 0} CT ATo}BwIxXo’dde Woy ZuIgues sjopow

UI esN JOJ pousisep st weqshs oyy, ‘Sdrys eovjins jo sjepow
SUIUUNI-901j 10} wWeySAs [01}U0D-OI pw B SeqIIOSep yiOdel SIYT,

duI4ISSVTONA “sjoi ‘“saderp ‘-snq[t -dp6 ‘xt “0961 qoq
“wBUjjory “M°O Aq ‘SdIHS AOVANNS AO STAGOW DNINNOAU

-ddad Od WALSAS DNIUAMOd GNV TOULNOO OIdVu
"6SEL ssoday = ulspg japow 40) Any piang

QO ACeerssaeeTeT en ececara ee ae

“M SOTIBYD ‘ueWJOH “|
(orewoyny)
swe}sks [oquog —
Sieppny — sTepour drys “¢
Joyuog
— sweysds uorsitndoig
— sjepow drys “>
SIS STSPON
— joaquog — (eure)
swejshs uotsjndoig *¢
s[snuswi
uorjyonaysuy — (o1}8WoOyny)
suejsAs [OUOD °Z
udtseq — (o17BwWo ny)
sweysks [OUOD “T

“M SOTWYD ‘weUJJOH “J
(o1y8W04ny)
swejshs [OIyUOD —
Sloppny — sjepow drys “¢
Jonuog
— sweysks uors[ndoig
— sjepou drys “>
8780) [OPOW
— ouquog — (outs)
sweysks uotsjndoig *¢
s[snusw
uorjonaysuy — (o1BWOyny)
suie}sXs JONUOD °Z
udiseg — (o148wWoyny)
sweyshs [OOD ‘fT

TaAdt9«

*popnjour oie ‘suviduip

oVeWeYyoS pus sydvadojoyd yqIM ‘suoTjONYSUI OOUBUOWIBU

pus uorqeiedo ‘uorje[]e}suy “weyshs eyefduwioo oy} Seqtiosep pus
‘Apnjs Sulieeutdue eyy JO MerAel Jotaq B Sepnpour yoda sty y,

*Se110q}8q WNIUIpBo-[eyxoru

a] qvedIByooI ojt]-duo] Aq peiomod st weysks oyy, “[epow

84} GUIT[OIUOD UT 10;¥Ied0 EY} epINd 07 efOSUOD ey} UO peyBoIp

-ul e1B wid qjeys uors{ndoad pus ‘eur Suruuns Joppna ‘uorytsod

Jeppny “peptaoid oie syouusyo [ouod-uotstndoid [euotzs0doid

OM] pus [eUUBYD [oI}U0-Jeppna [eUOTI0doId Vy ‘swezsXs uorsjnd

-O1d MEIOSIy[NW JO e[Furs yyIM pesn oq ABW 4I BY} OS poduUBIIB

SI puB yyUE] UI yoo} Og 07 CT A[oBwTxosdde wos Zurzuei sjepow

UI @SN JO} peudIsep st weiss eYyy, *Sdrys eovjins jo sjepow
Sutuuni-ee1j Jo} weyss [oIWUOd-oIpei B SeqtIOSep j10deI SITY,

dulaISSVTONN “sjoi ‘“saderp ‘-snq[t “de6 ‘xr “0961 qoq
“ueujjory “MO Aq ‘SdIHS AOVAUAS AO STAGOW DNINNOAY

“dada YOA WALSAS ONIMAMOd GNV TOULNOO O1dVu
“6SEL soday ‘ulsog japow 40jADy plang

*pepn{our oie ‘sueideip

oIyBMeYyoSs pus sydvadojoyd yWIM ‘suoTjONSUI oOUBUOQUIBU

pus uorqesedo ‘uorjB]]B}Suy “weyShs eyefduiod ey) Seqiiosep pus
‘Apnjs duleoursue ey} JO MerAeI Jotiq B SEpntouT qi0del sty,

*s01lo}}8q WNIWpBo-[exoru

e[qBes1Byoe1 ejt]-duo] Aq pesomod st wezsks oy, *[opou

84} JUI[[OI}UOD UT 10}¥1edo0 EY} EpINd 07 efOSUOD ey UO peqwoIp

-ul ese widi 4jBys uors{ndoid pus ‘out) Suruuns Joppna ‘uorytsod

Jeppny ‘“peptaoid oie syeuusyd JojU00-uorIs{ndoid [BuoTyIodoad

OM} pus [oUUBYD [o.}UO9-Jeppn4 [8uorjJodoad y *swieysXs uortstnd

-O1d MEJOSI}[NW JO e[FuTs YIM posn eq Avw 4I BY) OS poduUBIIE

SI pus yydUE] UI 4003 Qg 07 GT AToyBuITxOIdds Woy Zurduvl spopou

UI esN JOj peudIsep si weyshs ey, “sdrys eovjins Jo sjepoul
duluuNI-oelj 10} we_SXs [OI]UOD-OIpBi B SeqIIOSep yJodel SIYJ,

ddaI1dISSVTONO “sjou ‘“siderp “snqjt “deg ‘xr “096T qey
“uBuyjory “MO Aq ‘SdIHS AOVANNS AO STAGOW ONINNAY

-ddud YOU WALSAS ODNIUAMOd GNV TOULNOO OIdVu
“6SEL Hoday ‘ulsog japow 40;ADy piang

cri nance TCONM BUR ME Karo S at RL KR me anoR

1
‘ ‘
i

nore}
=?

aod

say,

pile On ere

TF

Pay

ME OM

ETE PSO OS

ret

eaiote
sigeaidepet

SDA rates.

“M SepeyD ‘uBwjjoy “|
(omnswoyny )
sue}sXs [osquog —
SlJoppny — sjepow diys *¢
Jou0D
— sweysds uorsindoig
— sjepow diyg “+
5980} [9 POW
— osquog — (eutseyy)
suieyshs uots[ndoig “¢
s[snusu
uoroniysuy — (o1y8wWoyny)
swezshs [OUOD *Z
udtseq — (o1j}8Wo Ny)
sule}sAS [OUOD “T

“M SOpIwYD ‘uewWyjoH *]
(orewojny)

swe}ss [oUuODg —
Sioppny — sjepow drys *¢
Jonu0g

— swejsds uorsindoig
— sjepow diys “Fp

5780} [OPOW

— Joyquog — (eutsey)
sueysAs uots[ndoig “¢g
s[Bnusw

uorjonysuy — (d1}8WoOyny)
swejsXs [OUOD *%
udtseq — (o1j8wo ny)
suezsks [OUD ‘T

GdaIdISSVTONN

ddaIdISSVTONOA

“popnour oie ‘suvideip

OIVBWIeYyOS puv sydvadojoyd yyIM ‘suorjoONIysUT eOUBUEWUIBU

pu¥ uorywiedo ‘uolzB]][VISuy ‘weySXs eje,dwWOo oy} Seqtiosep pus
‘Apnjs dulieeutsue ey} JO MetAel Jotiq ¥ SepnTout 710ode’ sty,

*Se110}}8q WNIWpBo-[exotu

e]qvesIeyoe1 ejt[-duo] Aq pesiomod st weysks oyy, *[opow

84} FUT][OIUOD UT 107BI0d0 oY) epInd 07 efoSUOD ey} UO pezZoIp

-ul e1% widi qj8ys uors[ndoad pue ‘eur dutuuni seppna ‘uorztsod

Jeppny “pepraoid oie sTouuByo JoIqUOd-uoTs~ndojd [BuUOTzIOdoad

om} pus [euuByd [01}U09-Jeppni [euoTyIodoad W *sweysAs uors[nd

01d MOIOSTIy[NW JO eydUIS yyIM pasn eq ABu 41 WBYy OS posuBIIE

ST puv yysUe] UI 300} YE 07 GT ATOVBUITXO’dde Woy SuIduvi sjepow

UI esN JOj peusdtsep st weiss eyy, ‘*sdrys eovjins jo sjepou
Sutuuns-9e1j 10) wWoezSAs [01}U0D-OIpel B SeqIJOSep yiodel SITY],

*sjoi‘*sideip ‘snr “dpe ‘xt ‘096T qoy

“uBUjJOTT “M°O Aq ‘SdIHS AOVAUNS AO STAHGOW DNINNOAY
-ddud YOU WALSAS ODNIUAMOd GNV TOULNOO O1dVu

‘ulsDg [2>Pow soy Avy plang

“6SEL sodey

*pepnyour oie ‘suviderp

oleweyos pus sydvidojzoyd yqIM ‘SuOT}ONAWSUI OOUBUOJUIBU

pus uorjsiedo ‘uorjBi[Bysuy “weysXs eye[dwoo eyy Seqtiosep pus
‘Apnjs Sulieouldue ey} JO MeTAeI Jotiq B SepnTout yiOde, sIyy,

*S01109}8q WNIWpBo-j;eyoru

9] q¥esIBYdeI ajI]-duo] Aq pejemod st weqsks eyy, *Jepouw

8Y} SUT[[OIQUOD UT 10;¥1EdO EY} epIns 07 eTOSUOD EY} UO peyBoIp

-ul ese widi 4jeys uorstndoid pue ‘eur Sutuuns Jeppni ‘uo1q1sod

Jeppny “peptaoid ev sjouusyo [oIWu00-uOTs[Ndod [euorziodoid

OM) puB [oUUBYD [oI}U0D-Jeppna [wUOT}IOdoid y “sweysXs uorstnd

-O1d MOIOSI}[NUW JO e[dUTS YyIIM pesn eq ABU 4I 4BY} OS posUBIIe

SI pu’ yyduUe] Url 400) Og 07 GT A[oyewTxosdde wow Surduei spepow

UI @SN JOj peudisep st weysks ey, *Sdrys eovjins jo sjepou
duluuNI-80Ij 10} WexSAS ]OI1}U0D-OIpe1 B SeqIIOSEp yOdel SIyy,

“sjol ‘‘sidvip ‘-sn][I ‘dp6 ‘x! ‘OQ96T qoq
“uBujjory “M°O Aq ‘SdIHS ADVAUAS AO STUGOW DNINNOAY
-dadad YOU WALSAS ONIVAMOd GNV TIOULNOO OIdGVuU

“6SEL odey = ulspg japow 4ojAdy plang

TSPCOPEL SHOT EAGEOK 20660 FAM. Boer Hi ChaRGaanG:

“M SOTIWYD ‘ueUyjoy “]
(omnewoiny)
sue}shs [oquOD —
sioppny — sjepow drys *g
joyuog
— swesds uorsjndoig
— sjepow drys “F
5980] [OPOW
— [osquog — (eutieyy)
sueysAs uotsjndoig *¢
s[enusu
uorjyonaysuy — (o18WOyny)
suiejsks [OUOD °Z
ustseg — (o17BW0jny)
swajsks [OUOD “T

“M SOTBYD “weUJjoH “|
(onswojny)
sue}sXs [oqUuoD —
Sieppny — sjepow diyg “¢
Joynuog
— sweysAs uors[ndoig
— sjepow drys “>
5780} [OPOW
— jomquog — (outs)
sweyshs uotsjndoig “¢
s[enusu
uorjonysuy — (d1yBWoO ny)
suiezshs [ONUOD °%
udtsegq — (o178wWo ny)
swejsks [ONUOD “T

*popnyjour oie ‘swviderp

d1VBUEYOS puv sydvadojzoyd yyIM ‘sSuOrjoON.ySUT souvUE UIE

pue uorjeiedo ‘uolze][B}Suy “weySXs eyatduioo oy Seqiiosep pus
‘Apnjs SULISOUISUS EY} JO MOTAeI Jariq & SepntouT soda sty,

*S9110}}8q UINTWpPeo-;exorU

9] qBvedIBYydeI ojI]-duo] Aq peiomod st weysks ey, “[epou

8Y) BUI[[OIUOD UT 10;¥1ed0 EY} epINd 07 efOSUOD EY UO pezeoIp

-ul 018 widi 4jeys uors{ndoad pus ‘eur dutuund seppna ‘uorztsod

Jeppny ‘peptaoid ose sjouuByo [oIquOd-uoTs[ndoid [euotzi0doid

OM} puB [ouUBYd [oIQUOD-Jeppni [euoriodoid y “sweyss uorstnd

-O1d MOJOSI}[NU JO B[FuTS yIIM pasn oq ABU 41 3BY} OS pesuRIIE

ST puv yysUe] UT 3003 Og 07 GT AToBuTxosdde wow ZurZuei spepow

UI SN 1Oj poudIsep st woyshs eyy, “sdrys eoevjins jo sjepou
SuluuNI-eelj 10} WeySAS [OI}U09-OIpei B SeqIIOSep yJOde1 SIYy,

GaIaISSVIONA “sjoi ‘*saderp “snqjt “dé6 ‘xt “O96T qoq
“uBujjorT “4°O Aq ‘SdIHS AOVANAS AO STUGOW DNINNOAY
-daua YOA WALSAS ONIUAMOd GNV TOULNOO O1dVY

“6SEL soday = -ulspg japow soy Ady plang

*pepn{oul ois ‘suiviseip

otVBMEYyOS pus sydvadojoyd yyIM ‘SuorjONIySUI eoUBUEIUIBU

pus uorqviedo ‘uorjei]eysuy “weysks eye;dwoo 04) seqiiosep pus
‘Apnjs Dutieoutdue ey} JO META@I Jotsq B Sepnyour 4J0de1 STYy I,

*S01J09}]8q UINIWpeo-[eyoru

e]qvesivyoo ejt[-duo] Aq peiemod st weysks eyy, “[epoul

8Y} SUI[]OIQUOD UT 10}8I1ed0 EY} epInd 07 e[OSUOD ey} UO pezBOIp

-Uul e18 widi 4jBys uoIs{ndoid pus ‘eurry Suruuns Jeppna ‘uor;Isod

Jeppny “peptaoid oie sjouusyo [oajuoo-uors{ndoid [Buorziodoid

om} pus [euueyo 01jU09-Jeppni [wuoryiodoid w ‘swieysXs uorsj{nd

-O01d MOJOSIz[NUI JO e[SUTS YIM pesn oq ABU 41 9BY} OS posuUBIIG

SI puv yjdue] ur ye0) Og 07 GT ATeyeutxoidde woy Suiduei spepow

UI ESN JO} poustsep si weyshs oyy, “SdIys eoBjins jo sjepoul
duluuni-0e1j 10} wexsXs [01}U09-OIpel B Seqtiosep jJodel sty,

GaldIsSVTONN *sjoi “siderp ‘-snijt “dé ‘xt "0961 qea
“uBUJJOTT “MO Aq ‘SdIHS AOVAUNS AO STUGOW ONINNAY
“dada YOA WALSAS ONIUAMOd GNV TOULNOO O1GVa

"6SEL $0day ‘ulsog japowy sojADy plang

Cerrar’ CME SSF TRESS CH SOA CC CECE COC Se CeCe ce Reeeneleersen oct Cedsevteacacenacercat