A dock line leading forward or aft, to prevent a vessel from moving ahead or astern. The after bow spring line is attached near the bow and runs aft, where it is attached to the dock. The forward quarter spring line is attached to the quarter of the boat, ...

A compressor belonging to the group of displacement reciprocating compressors.

A container constructed to carry grain, powder and other free-flowing solids in bulk. Used in conjunction with a tilt chassis or platform.

A blend of gases tailored to replace the normal atmosphere within a container.

Going sideways due to a current's set.

The forward part of a boat's main deck.

To change a boat's direction, bringing the bow through the eye of the wind.

The slight deflection of very small particles in a gas stream that occurs when rapidly moving gas molecules strike them.

On larger sailing vessels, the space between the foremast and mainmast where spare spars were stored.

A reference book named after the original author, Nathaniel Bowditch. Updated versions contain tables and other information useful for navigation.

A condition of filter element loading in which contaminant spans the space between adjacent sections of a filter element, thus blocking a portion of the useful filtration.

An adiabatic compression with no increase in entropy; a reversible-adiabatic compression.

On square rigged ships, lines or cables attached to the ends of each yard; these are used to pivot (brace) the yards around the mast at different angles to the fore-and-aft line of the ship to make the most of the wind..

(1) The portion of an anchor that digs securely into the bottom, holding the boat in place. (2) The two triangular parts which make up a whale's tail.

A knot widely used when making a boat fast to a post or bollard.

This type of insurance offers the shipper the broadest coverage available, covering against all losses that may occur in transit.

A sail having battens that run the full horizontal length of the sail.

To place pieces of dunnage in between pieces of cargo in order to prevent shifting of the cargo.

The forward part of the bow which overhangs the keel.

A government office where duties are paid, import documents filed, etc., on foreign shipments.