(Free On Board) (...Named Port of Shipment):An International Term of Sale that means the seller fulfills his or her obligation to deliver when the goods have passed over the ship's rail at the named port of shipment. This means that the buyer has to bear ...

A fitting around the propeller shaft to keep the bearing lubricated and to keep water out of the boat.

An important parameter in establishing an entrained particle's potential to impinge on control surfaces and cause erosion.

Air cylinder

The riding lights required to be carried by vessels at anchor.

The alternating motion of a boat, leaning alternately to port and starboard; the motion of a boat about its fore-and-aft axis.

When a ship's head or stern pitches suddenly and violently into the trough of the sea.

Sailor's name for a block of sandstone used for scrubbing the wooden decks of a ship; seamen had to get down on their knees to use them. Large holystones were known as "Bibles", while smaller blocks to reach awkward places were known as "Prayer Books" ...

Old Latin name for the south wind.

A form of steam engine where a piston moves back and forth inside a cylinder, transmitting its motion to a driving shaft by a connecting rod and crank.

see Watch

A device which operates compressors in sequence according to a programmed schedule.

The use of a sound barrier separating the sound from the receiver.

A ring used to attach certain bellow type flexible members of an air actuators to the mounting surface.

The whole crew.

A running light allowed on some sailboats instead of the normal bow and stern lights. The tricolor light contains the red and green side lights and the white stern light in a single fitting that is attached to the top of the mast.

To approach something from upwind

(1) The location from which a vessel is steered and its speed controlled; navigation and command center of the vessel. (2) A man made structure crossing a body of water.

One which blows across a boat's side

The standard atmosphere is defined as the pressure exerted by a column of mercury 760 mm high with a density of 13,595 g/cm