534 NICHOLLS'S SEAMANSHIP AND NAUTICAL KNOWLEDGE

Find the position of the resultant C. of G., and also the G M if the
metacentre is 20-5 feet above the keel.

Answer.—G M —'4 feet.

(ii) The above GM being unsatisfactory it is decided that two
ballast tanks shall be run up, No. 3 tank 300 tons, V.C.G. 2 ft. and No. 4
tank 400 tons, V.C.G. 1-5 ft. Find the new GM assuming the KM
to be 20-5 feet.

Answer.—G M 1 foot.

27. Given the following information from a cargo plan. Find the
new C. of G., and if the K M is 22 feet find also the G M.:—

Weightr-Tons% 1000 1500 1250 1100 900 600 400
V.C.G.—Feet 24 22 21 19 23 25 18

Light condition of ship 3250 tons displacement, initial C. of G. 20
feet above keel.

Answer —*8 feet.

28. At the first port of call the following cargo was discha ged from
the above ship, find the new G M assuming K M to be 22 feet:—

Weight—Tons 400 300 500 600
V.C.G.—Feet 20 22 23 24

r.—ri foot.

29. A ship arrived in port, draught 21 ft. 00 ins. forward, 23 ft. 00 ins.
aft, and discharged cargo as follows:—If her T.P.I, is 45 tons and her
I.T.M. is 1100 foot-tons, find her new draught.
Cargo in tons 200 450 300 500 200
Distance from T.C. in feet 30F 25 F 50 F 35 A 40 A
Answer.—17 feet 8^ ins. forward.
20 „ 2J „ aft.
30. It is desired to bring a ship on to an even keel, her present
dxaugnt is 17 ft. 08-2 ins. forward, 20 ft. 01-6 ins. aft. and I.T.M. 1100.
foot-tons. What distance must 300 tons of cargo be shifted forward
to do so?
Answer.—107*8 feet.