NSTM 581 Anchoring Flashcards
When hauling in anchor chain from __ fathoms, do not exceed ____ speed
60 fathoms, half speed
Pay out the anchor chain to ___ fathoms and free-fall the anchor when anchoring in less than ___ fathoms
15 fathoms, 15 fathoms
Anchoring should not be done in depths > ___ fathoms
> 100 fathoms
Anchoring system is designed on a __kt wind and a __kt current in __fathoms of water, in firm sand with the current bow head on
70 kt wind, 4 kt current, in 40 fathoms of water
Chain size reflects a safety factor of __, all of which equal the chain tension at the ship’s ____
5, ships bolster
Distance between 2 targets points on the Short side of the nomograph is ___ inches
6 in
Distance between the 2 target points on the long side is __ inches
8 in
Diagonal distance between extreme target points is __ inches
10 in
Do not anchor on a slope greater than __ degrees
40 degrees
The bail lock pin on the chain stopper may be secured by ______________
figure eighting the lanyard on the pin / bringing the bail against the pin
In depths > 15 fathoms, pay out anchor using the windlass until __ fathoms from seabed and free-fall the anchor
15 fathoms
Operate the hydroelectric drive to bring the fluid up to operating temp ___*F, before hoisting anchor with capstan
140*F
Before using electromechanical windlass, ensure wildcat locking head is __________
disengaged
Most common cause of anchors NOT free-falling is fouling of the ___________
wildcat and capstan shaft bushings
Presence of bronze in lubricants indicates ________.
bushing wear