Where the water and sky or ground and sky appear to intersect.

Also bosun, bos'n, bo's'n, and bo'sun, all of which are pronounced bosun. The highest unlicensed rating in the deck department who has immediate charge of all deck hands, oversees deck crew, maintenance and upkeep of the ship except for the engine room an ...

A method of payment for goods in which cash is paid at the time of order and the transaction becomes binding on both buyer and seller.

The breaking-up of paint into fine particles or droplets by a paint gun using compressed air.

Area of high barometric pressure where the wind circulates clockwise in the Northern Hemisphere, and counter-clockwise in the Southern Hemisphere. These are fair weather systems with light or moderate winds.

Shipped under rate that includes cost from end of ship's tackle at load port to end of ship's tackle at discharge port.

The ratio of the actual water-vapor partial pressure to its saturation pressure at the same temperature. (considered only with atmospheric air).

A ring-shaped fitting into which the rudder pintle is inserted which allows the rudder to pivot.

To coil flat down on deck, each fake outside the other, beginning in the middle and all close together.

Imaginary lines drawn through the north and south poles on the globe used to measure distance east and west of the prime meridian at Greenwich, England (designated as 0

Sailing with the motor on and in gear

Said of a man who goes to sea as a rating compared with officers, and lives forward. Forward of a mast.

: Regular ship shaped vessel, production ship. Positioned by anchors or dynamic positioning. Has its own propulsion machinery.

The settings on a pressure switch used to either load or unload the air compressor on a constant speed application, or start or stop the compressor on a start/stop application. The cut out pressure is also known as the maximum pressure, or the point at wh ...

It is the weight of the column of air existing above the earths surface at 45

A vessel's position determined by observation and navigational data.

A label required on shipments of flammable articles.

(1) To lay a line out in coils so that it can run without fouling. (2) Folding a sail in layers on the boom.

Complete encirclement of a cleat, bollard, pin or winch by a line.

A strong tropical revolving storm of force 12 or higher. In the northern hemisphere hurricanes revolve in a clockwise direction. In the southern hemisphere these storms revolve counterclockwise and are known as typhoons.