Shoal area between two navigational channels.

A term used to describe a chemical process in which heat is released. For example, combustion is an exothermic process because heat is released. A reaction or process that produces heat; a combustion reaction.

When reciprocating compressors run, the moving parts such as pistons, rods, crossheads, connecting rods are repeatedly accelerated and retarded. These velocity changes set up pulsating inertia forces. The forces are of the first and second order. The firs ...

Light, warm wind on surface of sea.

Any steel bar or column, fitted vertically, to support a deck, or any part of a ship's structure. Also called a stanchion.

A certificate issued as a result of an examination of competency and experience. Some refer to their USCG license as their ticket

A person whose business is to act as an agent on behalf of the shipper. A freight forwarder frequently makes the booking reservation.

The lower yard on a mizzen mast of a square-rigged ship.

A type of air circulation in a temperature control container. Air is pulled by a fan from the top of the container, passed through the evaporator coil for cooling, and then forced through the space under the load and up through the cargo. This type of air ...

A flying bridge on top of a pilothouse or chart house.

Forcing material into the seams of the planks in a boat's deck or sides to make them watertight; the material itself. Oakum was once the material used for this purpose, and was then sealed with hot pitch to prevent it from rotting. Today there are polymer ...

A knot with two half hitches loops - on the standing part of the line.

Is a pipe extending downward from the bottom of the airline to collect any condensation flow in the pipe.

A Latin term meaning "For the sake of form."

The general preparation of a vessel to make ready for the sea in all respects.

A person or firm who transacts all business in a port on behalf of shipowners or charterers. Also called shipping agent; agent.

A bulkhead placed athwartships.

A sailing vessel dead in the water due to lack of wind (not moving).

A draft that matures either a certain number of days after acceptance or a certain number of days after the date of the draft.

Allows foreign merchandise arriving at one port to be transported in bond through the U.S. to be exported from another port, without paying duty.