To collide with a vessel head on.

To take the opposite tack when sailing to windward with another yacht.

To change a boat's direction, bringing the bow through the eye of the wind.

(1) A spar. Such as a pole used to position a sail (e.g., spinnaker pole or whisker pole, which serves the same purpose for a jib). (2) One of the two points around which the earth spins, known as the north and south poles.

A board-shaped swinging vane, controlled by a tiller or wheel, and attached to the rudderpost or stern for steering and maneuvering a vessel.

A method of removing heat from the flowing medium by circulation of a coolant in passages built into the diaphragm.

Is a compression in which the temperature of a gas remains constant.

Wheeled under-carriage on which a container or chassis may be placed.

A valve to control the flow of air in a certain direction.

A bolted rim used for attachment to another object.

Is the total gas pressure (static plus velocity) at the discharge port of the compressor. Velocity pressure is considered only with dynamic compressors.

A very high wind. Also called "Snotter"

Wing-like retractable devices extending from the sides of the vessel to dampen down rolling in seas and produce a steadier, smoother, and more comfortable motion.

Beams sometimes fitted over the decks for the stowage of heavy boats or cargo.

A bullying and tyrannical officer; he would drive his crew by brutality and the power of his fists.

A short, confused sea.

The removal of heat from the air or gas between stages.

The piece of board on which a man working aloft is swung.

Of a system (or part thereof) is its condition at an instant of time as described or measured by its properties.

Still, seaworthy, able.