Applies to vessels, not to cargo, (0.2+0.02 log10V) where V is the volume in cubic meters of all enclosed spaces on the vessel.

The short deckhouse or main hatchway which is raised above the level of the cabin top or coachroof.

A light spar set fore and aft on a boat, serving as a spread for the boat cover.

(1) A second method of propelling a vessel. On a sailboat this would be the engine. (2) Machinery fitted in steam and motor vessels which is not part of the main propelling machinery. (3) a support group, e.g., Coast Guard Auxiliary

Toward the shore

Tanks used for the storage of air discharged from compressors. They serve also to damp discharge line pulsations.

The extension of an air actuator beyond its design height.

One who is adept at splicing, knotting, and working with line and canvas.

A movement where the load initiates at an origin rail ramp and terminates at a consignee's door.

A structure which extends outboard beyond the edge of the hull for some special purpose. Some Polynesian canoes use outriggers to support an "ama" or small secondary hull, while fishing boats may use outriggers to suspend lines or nets over the water. ...

The power which is theoretically required to compress a gas under constant temperature, in a compressor free from losses, from a given inlet pressure to a given discharge pressure.

(1) The mast section next above the topmast and and below the royal mast. (2) The yard supported by that mast. (3) The third lowest square sail. It is stretched between the topgallant yard and the top yard.

Break horse power

When a vessel fills with water and sinks.

Reduce dew point by passing compressed air through a bundle of hollow membrane fibers; water vapor and a portion of the compressed air then permeate the membrane walls and vent to atmosphere

The ratio of clearance volume to the volume swept by the compressing element.

Sailor's name for the north star, Polaris, which for all practical purposes remains fixed above the north pole, bearing north from everywhere in the northern hemisphere, making it a true aid to navigation.

A listing of a particular boat's steering deviation on each point of the compass

Originally a seaman who, not wanting to work, preferred to exist by hanging around ports and harbors and living on the charity of others. Now more generally describing any loafer around the waterfront who prefers not to work.