304 KICEOLLS'S SEAMANSHIP AND NAUTICAL KNOWLEDGE
10. What would you do if there was not enough water for you to go round
outside them?
If I could pick a clear passage should lift niy anchor, turn her round,
and steam slowly between them. If it was too risky to do that, it
would also be too risky to drop or dredge her up through them. That
being the case I should wait for slack water I could then get under
way and approach the entrance direct from the position where I was
at anchor.
11. What do you mean by "dropping" or "dredging" her up?
"Dropping" her up is done by lifting the anchor clear of the ground
and allowing her to drift up with the tide.
"Dredging" her up is done by leaving the anchor on the ground
but heaving the cable so short that the anchor will not hold. She then
drags or "dredges" it along the bottom.
Dropping or dredging her down is exactly the same thing, but, of
course, is done on the ebb tide.
12. Is the helm of any use when dropping or dredging a ship in a
tideway?
Whe$ "dropping*' a vessel up or down she is simply drifting with
the tide and has no way through the water; the helm is consequently
of no use.
When "dredging" her the anchor retards her speed over the ground,
bringing her stem on to the tide and causing the water to pass by her.
The helm will then have the same effect and can be used in the same way
as if the vessel was going ahead.
13. Which knuckle do you work round when entering a dock!
TKe lee one, if the tide is not too strong.
H. How would you enter a dock, no tug and no steam on the main
engines?
Presuming my ship to be lying alongside in close proximity to the
entrance I should pass a good rope along from the inside quarter and
make it fast on the knuckle. Have a good check rope from the inside
bow. Spring the ship ahead with the quarter rope and when half her
length or a little more is past the knuckle head apply the check an<J
bnng her head into the entrance. Heave her along into the lock.