An instrument with a movable arm to plot a course on a chart

Also known as (U.S.) Federal Bill of Lading Act of 1916. U.S. federal law enacting conditions by which a B/L may be issued. Penalties for issuing B/L's containing false data include monetary fines and/or imprisonment.

The renting of a boat

The speed needed for a boat to begin planing.

Is a positive displacement reciprocating compressor using a flexible membrane or diaphragm in place of a piston.

Achieved when the air compressor is running at full RPM with a fully opened inlet and discharge, delivering the maximum volume at the rated pressure.

An object made with more than one type of material.

Fresh bread.

PSI - Pounds per square inch.

The line of longitude 180 degrees opposite Greenwich, England, located in the Pacific that marks the date change

Towards, near, or at the bow; Prefix denoting at, near, or toward the bow.

A built in mechanical device to recover a portion of the power consumed by a constant speed centrifugal compressor when operating at reduced capacity or reduced pressure rise, or both.

The number of revolutions per minute of the compressor shaft.

First voyage of a ship.

A distress call made by a vessel requiring assistance. These three letters were chosen because they were easy to make and read using Morse Code. Some believe the letters meant "Save Our Ship" or "Save Our Souls".

A spring line tied from the boat to chain rode, usually near the water's surface. It helps disperse tension forces. It also prevents damage to the boat by ground tackle and can help in the retrieval of the ground tackle in heavy weather.

Pair of hooks linked together and attached to a crane.

A device that indicates pressure differential above or below atmospheric pressure.

Small, circular sheets of newly-formed ice that do not impede navigation.

C The international temperature scale where water freezes at 0 (degrees) and boils at 100 (degrees). Also known as the centigrade scale.