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.

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.

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

(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 secured along the deck to lay hold of in heavy weather; a line thrown on board a wreck by life-saving crew; a knotted line secured to the span between life-boat davits for the use of the crew when hoisting and lowering

U.S. classification society which certifies seagoing vessels for compliance to standardized rules regarding construction and maintenance.

A pear-shaped, grooved metal fitting around which an eye splice is made

Sails, such as the spinnaker, reacher and reaching staysail used when running or reaching

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

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

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

The line that controls the angle of the mainsail in its relation to the wind.

Oscillations of the sea caused by wind blowing along the surface and moving in the direction from which the wind blows.

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.

For gauging purposes a transverse section including all longitudinal members such as plating, longitudinals and girders at the deck, side, bottom, inner bottom and longitudinal buklheads.

A region of shallow water usually made of sand or mud, usually running parallel to the shore. Bars are caused by wave and current action, and may not be shown on a chart

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

See Ship's Port Agent

On the lee side of an object, protected from the wind.

Overhanging part of a vessel's stern. The area of the upper deck of a ship that is nearest the stern.