A legal paper or license of a boat or its captain.

Hinged covers for freeing ports.

Type of shackle designed to take several eyes connected to several lengths of chain.

An imaginary sphere surrounding the globe that contains the sun, moon, stars and planets.

Heavy canvas used as a covering.

Sailing with the wind coming from the port side, with the boom on the starboard side.

Is that pressure of either the motive fluid or of the ejector gas discharge which causes an ejector to become unstable.

A method of removing heat from the flowing medium by circulation of a coolant in passages built into the diaphragm.

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

The ratio of the real gas isentropic power consumption to shaft input.

Is the total pressure (static plus velocity) at the inlet flange of the compressor.

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

White-lead and tallow used on standing rigging.

A navigable route on a waterway, usually marked by buoys. Channels are deep enough for ships or boats to navigate without running aground.

An acid carbonate.

The construction system employed in container vessels; permits ship containers to be stowed in a vertical line with each container supporting the one above it.

Said of a wind when it is light and variable in direction, not blowing steadily from any direction.

Foam or spray which is thrown out under the bow of a ship when she is under way. If fast moving with a lot of spray being thrown out, the vessel is said to have "A bone in her teeth".

Small birds that foretell bad weather and bad luck.

Navigation rules governing waters outside designated demarcation zones