The highest unlicensed rating in the deck department who has immediate charge of all deck hands and who in turn comes under the direct orders of the master or chief mate or mate.

An instrument with a movable arm to plot a course on a chart

The tendency of a boat to move sideways in the water instead of along its heading due to the motion of currents or currents.

A filter element whose medium consists of a series of uniform folds and has the geometric form of a cylinder, cone, disc, plate ... Synonymous with "convoluted" and "corrugated".

A rope sewn into the luff or foot of a sail for use in attaching to the mast or boom.

Towards, near, or at the bow; Prefix denoting at, near, or toward the bow.

To move ahead swiftly. To move ahead of another vessel quickly when underway.

Pounds per square inch, gauge. Pressure indicated by a pressure gauge.

The number of revolutions per minute of the compressor shaft.

To carry sail to the full limit of strength of masts, yards, and tackles.

An old naval saying to indicate those young men who, through birth or connection, were able to enter the Royal Navy without examination. Their subsequent promotion was assured.

White-lead and tallow used on standing rigging.

See Owner Code.

A sudden squall of wind accompanied by lightning.

A flexible strip used for fairing lines.

PSI - Pounds per square inch.

Pair of hooks linked together and attached to a crane.

The speed needed for a boat to begin planing.

Is a positive displacement reciprocating compressor using a flexible membrane or diaphragm in place of a piston.

A valve which enables pressure to be reduced, or kept constant at a desired level.