A valve that permits flow in one direction only.

A representation on a plane surface of the spherical surface of the earth. The equivalent of a map for use by navigators.

A measure of air compressor efficiency, usually in the form of bhp/100 acfm or acfm/bhp

Decorative ropework with an even number of strands to form a herring-bone pattern.

Sailing with the wind coming from the stern or quarter of the boat.

A small toggle used on a flag.

Convention on International Regulations for Preventing Collisions at Sea; Rules of the Road. Internationally accepted rules by which vessels at sea must keep clear of each other.

The radio operator.

Compounds containing chlorine, fluorine or bromine, used as aerosol propellants, refrigerants, foaming agents and solvents and which, on decomposition by sunlight, produce oxides of chlorine responsible for the removal of ozone from the stratosphere.

A program whereby the U.S. government attempted to offset the higher shipbuilding cost in the U.S. by paying up to 50% of the difference between cost of U.S. and nonU.S. construction. The difference went to the U.S. shipyard. It is unfunded since 1982.

An area designated for the stowage of cargoes in container; usually accessible by truck, railroad and marine transportation. Here containers are picked up, dropped off, maintained and housed.

The action of a whale when it comes to the surface and expels the seawater it has taken in while feeding. The traditional hail of the lookout in a whaling ship when sighting this spouting water is "There she blows".

A rope network.

A fitting of wood or metal, with horns, used for securing lines (tying up).

A device for issuing fog signals, used for giving a warning of a vessel's presence in fog. These signals are also made by lighthouses.

Any time Day or Night Sundays & Holidays Included.

A rate applicable to or from a group of points.- A special rate applicable to several different articles in a single shipment.

A machine that compresses air, gases.

Freight moving under a bond to U.S. Customs or to the Internal Revenue Service, and to be delivered only under stated conditions.

any loss of performance due to the presence of contamination. Two basic types of contamination failure are: Perceptible -- gradual loss of efficiency or performance, and Catastrophic -- dramatic, unexpected failure.