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 ...

(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 short strut on a mast angled forward at about 45

In the Far East, a warehouse where goods are stored and delivered.

The vertical barrel device used to heave in cable or lines.

A component on a compressed air line that provides wide are coverage with a thin sheet of air. Also amplifies compressed air flow, reduces noise. Used in blowing, cooling. Also known as air knife.

A threaded, adjustable fitting, used for stays, lifelines and sometimes other rigging. It is used to to maintain correct tension on standing rigging. Can also be used to pull objects together.

Also known as a steaming light. The masthead light is a white light that is visible for an arc extending across the forward 225

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

A light showing an unbroken light over an arc of the horizon of 360 degrees. An anchor or riding light is an all-round light.

Inlet butterfly valve. These are fitted on the inlet of most types of compressor and the valve opens and closes to throttle the air flow. However, the term IBV is usually associated with turbo compressors.

Instrument for establishing the altitude and azimuth of stars and planets.

A loop or hole which is spliced or tied on the end of a line

A short oar. To scull, is to impel a boat by one oar at the stern.

A member of the ship's crew.

A suspension of fine solid or liquid particles in a gas.

A large circular ocean current.

On square-rigged ships, a form of ceremonial salute to honor the visit of a high official. The yards were lined by men standing upon them, and there was also a man standing on the truck of each topgallant mast.

Navy term meaning Officer of the deck.

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.