- 行业: Internet
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A tube, usually armored, connecting the conning tower with the below-decks control spaces in warships.
Industry:Boat
A triangular mainsail, without any upper spar, which is hoisted up the mast by a single halyard attached to the head of the sail. This configuration, introduced to Europe about 1920, allows the use of a tall mast, enabling sails to be set higher where wind speed is greater.
Industry:Boat
A trespasser on a ship; a person aboard a ship without permission and/or without payment, and usually boards undetected, remains hidden aboard, and jumps ship just before making port or reaching a port's dock; sometimes found aboard and imprisoned in the brig until the ship makes port and the prisoner can be transferred to the police or military.
Industry:Boat
A transverse structural member which gives the hull strength and shape. Wooden frames may be sawn, bent or laminated into shape. Planking is then fastened to the frames. A bent frame is called a timber.
Industry:Boat
A tool used in ropework for tasks such as unlaying rope for splicing, untying knots, or forming a makeshift handle.
Industry:Boat
A term used to describe the farthest point above the mouth of a river that can be navigated by ships.
Industry:Boat
A timekeeper accurate enough to be used to determine longitude by means of celestial navigation.
Industry:Boat
