A reef in a spanker or fore-and-aft mainsail, which runs from the outer head-earing, diagonally, to the tack. It is the closest reef, and makes the sail triangular, or nearly so.

An electrical current that periodically reverses its direction. Standard in US and Canada is 60 cycles per second. Europe and other countries is 50 cycles per second.

Abbreviation for "Just In Time." In this method of inventory control, warehousing is minimal or nonexistent; the container is the movable warehouse and must arrive "just in time;" not too early nor too late.

Said of a line that leads from its point of attachment towards the stern of the ship.

Smaller powered boat used to provide steerage-way when not under sail.

See Ship's Port Agent

In navigation, the angle between the point at which the sun rises and sets and the true east and west points of the horizon.

Bareboat (Method of chartering of the ship leaving the charterer with almost all the responsibilities of the owner.)

The cone-shaped shield at the top of the smokestack.

A general term for a floating craft that carries passengers, cargo or both

Heat exchangers for cooling air or gas discharge from compressors. Designed to reduce the temperature and liquefy condensate vapors. Both air cooled and water cooled units are available.

An electronic communications or direction finding system which uses Very High Frequency radio waves. VHF radios are the most common communications radio carried on boats, but their range is usually limited to line of sight between the transmitting and rec ...

the attraction to, and retention of particles in, a filter medium by electrostatic forces, or by molecular attraction between the particles and the medium.

A large circular ocean current.

A person authorized to transact business for and in the name of another person or company. Types of agent are:(1) brokers,(2) commission merchants,(3) resident buyers,(4) sales agents,5) manufacturer's representatives.

(Compressors/Gas Turbines) Is an alarm system that has maybe 3 sensors connected to it and it will require minimum of 2 of the 3 to alarm before the alarm will act. There is a controller connected that does the logic decision based on set parameters.

A line used to hoist or lower a sail, flag or spar. The tightness of the halyard can affect sail shape.

Reciprocating type compressor used mainly in oil and gas field applications. The compressor cylinders operate at low compression ratios and experience small temperature rise.

A movable block and tackle used on board for a variety of purposes, including the handling of cargo in holds.

The ratio in percentage of the time that the equipment is in operation to the total working time.