A windlass or capstan drum.

In sailboat racing, to disturb the wind of a windward boat by positioning your boat a bit ahead and to leeward. If done correctly, the disturbed air hitting the windward boat will slow it down, leaving it at a distinct disadvantage and causing it to tack ...

Energy terms

Gossip, usually about other people or events. The term scuttlebutt evolved from the name of a keg containing water and alcohol that sailors used to gather about before meals.

Cloths hung on the lee side of a berth to keep one from rolling out of their bunk

Compressors of 20 HP or less, generally combined with all the components required to put the into operation.

A Customs document permitting the holder to temporarily carry or send merchandise into certain foreign countries (for display, demonstration or similar purposes) without paying duties or posting bonds. Any of various Customs documents required for crossin ...

Sailing vessel with three or more masts. Square rigged on foremast, fore and aft rigged on all others.

Machines cooled by water circulated through jackets surrounding the cylinders or casings.

Incapable of being mixed without separation phases. Water and petroleum oil are immiscible under most conditions, although they can be made miscible with the addition of an emulsifier.

Six feet. Comes from the Dutch word "fadom" which was the distance between fingertips of outstretched hands.A unit of measurement relating to the depth of water or to the length of line or cable; one fathom is 6 feet or 1.83 meters

Letters, numbers, and other symbols placed on cargo packages to facilitate identification. Also known as marks.

A manmade waterway used to connect bodies of water that do not connect naturally. Canals use locks to raise and lower boats when connecting bodies of water that have different water levels.

The ratio and percent of the actual delivered capacity (measured at inlet temperature, pressure and gas composition) to the piston displacement.

Half of a sphere. On the globe hemispheres are used to describe the halves of the earth north or south of the equator.

Said of anchor when it is under ship's forefoot, and cable is nearly up and down.

Angled frames in the extreme forward or aft ends of a ship which form the sharp ends of the vessel's hull.

Abbreviation for "Not Otherwise Indexed By Name."

A wind coming from the east.

Gross tonnage is the basis on which manning rules and safety regulations are applied, and registration fees are reckoned. Port fees are also often reckoned on the basis of GT and NT. GT and NT are defined according to formulas which take account, among ot ...