freezing of a piston ring in its groove in a piston engine or reciprocating compressor due to heavy deposits in the piston ring zone.

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

Running directly before wind and sea.

When U.S. Customs orders shipments without entries to be kept in their custody in a bonded warehouse.

Is the temperature at which oil begins to flow under prescribed conditions.

A blast of from 4 to 6 seconds' duration.

The container of fresh water for drinking purpose used by the crew; formerly it consisted of a cask.

The basic unit of measurement for lumber. One board foot is equal to a oneinch board, 12 inches wide and one foot long. Thus, a board ten feet long, 12 inches wide, and one inch thick contains ten board feet.

See CFS.

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

Arrangements with a carrier for the acceptance and carriage of freight; i.e., a space reservation.

The renting of a boat

The last part of a rope or last link in an anchor chain.

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

Fresh bread.

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

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.

A block with a single sheave which is hinged and opens on the side so that the bight of a line can be led into the block and closed without running the whole length through

A legally binding agreement between two or more persons/organizations to carry out reciprocal obligations or value.

Achieved when the air compressor is running at full RPM with a fully opened inlet and discharge, delivering the maximum volume at the rated pressure.