Sailor's term for soot or ashes which sometimes fell into food while it was being cooked.

Rank intermediate between officer and rating, and in charge of ratings; more or less equivalent to the rank of sergeant.

The rank held by a naval seaman.

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

In trouble.

A direction of forty-five degrees or less from the stern.

A machine that compresses gases. Divided into two groups; process gas compressors and oil and gas field compressors.

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

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.

The straight or curved line of the deck line; curvature of the lines of a vessel toward the bow and stern.

General name for a broad, flat-bottomed boat used in transporting cargo between a vessel and the shore. The distinction between a lighter and a barge is more in the manner of use than in equipment. The term "lighter" refers to a short haul, generally in c ...

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

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

A small low rail around the deck of a boat. The toe rail may have holes in it to attach lines or blocks and to allow drainage. A larger wall is known as a gunwale.

(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.

To sail a boat closer to the wind - to steer closer to the wind, usually by pulling in on the sheets

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.

Short shrouds which give support to the top of a lower mast.

The proper return port of a discharged seaman.