The command given to inform the crew that the helm is being turned quickly to leeward, turning the boat windward

An order to stop; as, "Avast heaving!"

Order given to a boat's crew when going alongside under oars. Denotes that boat has sufficient way, and that oars are to be placed inside the boat.

The transaction or interchange that occurs at the time a container is received by a rail terminal or water port from another carrier.

The distance a boat can move around its anchor. Swinging room is important because if other boats or objects are within a boat's swinging circle they may collide.

A compressor belonging to the group of displacement reciprocating compressors.

Is singular for media and is the material...paper, wire, cellulose or a combination... from which the filter element is made and which does the actual filtration or separation.

A heavy colorless gas that does not support combustion but is formed by the combustion and decomposition of organic substances. Found in some ambient air conditions.

Nautical equivalent of ceiling

U.S. Commerce Department document, "Shipper's Export Declaration."

The tide with the least variation in water level, occurring when the moon is one quarter and three quarters full. The lowest high tide and the highest low tide occur at neap tide. The opposite is the spring tide.

Meddling or fooling around.

A single block such as a snatch block used as a fairlead to bring a line in a more favorable direction.

A unit of volume. A US gallon has 231 cubic inches or 3,785 liters.

Is the ratio of the thermodynamic work requirement in the cylinder to actual brake horsepower requirement.

(1) Term describing the status of seamen, corresponding to rank in the case of officers. (2) A method of measuring a yacht's expected performance relative to another yacht while racing. Over the years many formulas have been experimented with, in order to ...

Method of payment for goods in which documents transferring title are given the buyer upon payment of cash to an intermediary acting for the seller, usually a commission house.

An expression describing a sailing ship set with every sail she can carry.

The line to which a vessel is submerged with a full cargo on board.

Federal Communications Commission Rules governing radio equipment and operation in the United States.