A navigational light which turns on and off in a regular pattern, but is on more than it is off, so the period of light is longer than the period of darkness.

A light triangular or quadrilateral sail set over a gaff.

[meaning]

(See ROPE-YARN.)

Inlet guide-vane valve. Valve assembly at the air inlet of a "blower" (single stage, low pressure, centrifugal air compressor). Usually advised to be mounted in very close proximity to the "blower" impeller. Provides "pre-swirl" of air flow in same rotati ...

Department of Transportation.

A vessel's track through the water.

Jettisoned goods that cast overboard and are buoyed for subsequent recovery.

[meaning]

Protection and indemnity insurance

The operation of temporarily holding two lines together by seizing.

Good order and readiness.

[meaning]

Code of minimum conditions for the carriage of cargo under a bill of lading.

Measuring point for compressor acceptance test. Temperature before an orifice or nozzle, downstream of compressor discharge.

Description of a vessel when she rolls or pitches excessively while underway in heavy seas.

A block of wood or a bracket attached to a spar to support another spar attached to it.

[meaning]

The extremities of a yard.

A line or cable secured between two points and used as a support for various purposes.