A draft payable upon presentation to the drawee.

Blocks of wood made to fit in the hawse-holes, or holes in the half-ports, when at sea. Those in the hawse-holes are sometimes called hawse-blocks.

Depth measured; the number indicating depth on a chart; the process of measuring fuel or water in ships' tanks. A ship is thought to be "in soundings" when she is inside the 100 fathom line, and "off soundings" when she is outside that line. ...

PSI - Pounds per square inch.

A structure of heavy timbers placed between ground ways and cradle to support the ship during launching.

(1) Prospective course over the ground for boat to follow. (2) A strip of metal attached to a mast to take the slides affixed to the luff of a sail.

A large body of fish.

In sailboat racing, the mark or buoy that signifies one side of the starting line, opposite of the race committee boat.

The point (speed of sound) at which air flow through an orifice can not increase regardless of pressure drop.

A hawser or line attached to an anchor.

A vertical post extending above the deck for securing mooring lines

The spiral grooves between the strands of rope after it has been laid up.

A metal fitting with an arm that uses a spring to close automatically when connected to another object.

A large balloon shaped lightweight sail used when running or reaching. Spinnakers are made of cloth very similar to that used for parachutes, which is why you may also hear them called chutes, or kites.

see Turnbuckle

An anchor which has become entangled with some object on the bottom, or, on weighing, has it's rode or chain wound around its stock or flukes.

A type of journal bearing in centrifugal air compressors.

A stationary element between stages of a multistage centrifugal compressor. It may include guide vanes for directing the flowing medium to the impeller of the succeeding stage. in conjunction with an adjacent diaphragm, it forms the diffuser surrounding t ...

The speed needed for a boat to begin planing.

An official signature or seal affixed to certain documents by the consul of the country of destination.