The fitting which connects the boom to the mast.

To store a yacht away on land for the winter

Magnetic variation. The difference, east or west, between magnetic north and true north, measured as an angle. Magnetic variation varies in different geographic locations.

Hoisting the ensign at 8 a.m. and down at sunset.

An agreement to hold a carrier harmless with regard to a liability.

Abbreviation for "Not Otherwise Indexed."

(1) The condition of a vessel stranded on a reef or a rock when the seas break over her deck. (2) Half drunk; incapacitated by drink.

A propeller drawn through the water that operates a meter on the boat registering the speed and distance sailed

Also saloon; the main social cabin of a boat

(1) A term signifying an inclination of an object from a perpendicular; to turn anything so that it does not stand perpendicularly or square to an object. (2) Those timbers in a ship near the bow or stern which are sharply angled from the keel. (3) The op ...

Short for compressed natural gas or CNG. A type of compressed gas used as fuel for stoves and heaters. CNG is stored in metal cylinders prior to use. CNG is considered safer than other types of fuel such as propane LPG - because it is lighter than air and ...

When the wind shifts toward the bow. Opposite of lifted.

An order to stop; as, "Avast heaving!"

Sailing with the tiller over to leeward by force of the wind

A charge made for lifting articles too heavy to be lifted by a ship's normal tackle.

Term applied to the direction of the wind when it is favorable to the course being steered.

Specially designed for the transport of condensed (liquefied) gases. The most important gases are: ammonia, ethylene, LNG (Liquefied Natural Gas), which consists mainly of methane, and is cooled to a temperature of minus 163 degrees Celcius, and LPG (Liqu ...

(1) A wind shift further forward relative to the boats direction or heading. (2) A bar or angle under a deck the same size as deck beams. It is used around stair openings in deck, small hatch openings, or at dead end of longitudinals.

Alphabet used by the Navy when making sure that a letter is understood; i.e. "BRAVO OSCAR ALPHA TANGO spells BOAT"

Said of a vessel when she is shipping water on deck and it is running off through scuppers and freeing ports.