A document prepared by the captain of a vessel on arriving at port; shows conditions encountered during voyage, generally for the purpose of relieving ship owner of any loss to cargo and shifting responsibility for reimbursement to the insurance company.

Said of an object that is secured to another; attached, fixed, secured.

A boat is double banked, when two oars, one opposite the other, are pulled by men seated on the same thwart.

(1) A body of salt water. A very large body of fresh water. (2) The condition of the water around a boat. Heavy seas for example.

The course of a vessel after magnetic variation has been considered, but without compensation for magnetic deviation.

Maintains and monitors radio, sends and receives messages. Often maintains electronic navigation. Latest replaced with certified GO (Deck officer)

The part of a rotating element that counteracts any inherent thrust developed by the impellers.

Rolling a vessel, that is slightly ice-bound, so as to break the surface ice around her. May sometimes be done when a vessel is lightly aground, but not ice-bound.

CFM flowing through the compressor inlet filter or inlet valve under rated conditions

A deck exposed to the wind and sea.

An absolute temperature scale. ((

A projecting aperture at the end of a tube, pipe etc. serving as an outlet for compressed air. Reduces the demand on the compressor by generating the highest thrust and volume for the lowest possible air consumption.

A rope net to catch the jib when it is lowered.

Intimate mixture of oil and water, generally of a milky or cloudy appearance. Emulsions may be of two types: oil-in water (where water is the continuous phase) and water-in-oil (where water is the discontinuous phase).

A term used to describe the hot gas pressure on the outlet side of the refrigeration compression.

A fabric bag through which a gas stream is passed for the removal of particulate matter.

A sighting taken for celestial navigation at noon, when the sun is at its highest point in the sky.

An absolute temperature scale. (

(1) Said of ship's head when it moves away from wind, especially when tacking. (2) To discharge a crew and close Articles of Agreement of a merchant ship.