Slang for the leg irons which were used to secure men under punishment.

Space booked by shipper or charterer on a vessel but not used

A semi great circle joining the north and south poles. Known as lines of longitude, they cross the equator and all parallels of latitude at right angles.

The ability of a filter to remove specified test contaminants under specified test conditions from a specific test fluid, air, gas or liquid. Expressed as a percentage of the quantity of test contaminant introduced into the inlet of the filter test system

The air compressor continues to run, usually at full RPM, but no air is delivered because the inlet is either closed off or modified, not allowing inlet air to be trapped.

A navigational instrument which provides a bearing to a radio beacon.

Time period from when a compressor loads until it unloads.

Occurs when the vapor is at the dew point or saturation temperature corresponding to its partial pressure. A gas in never saturated with a vapor. However, the space occupied jointly by the gas and vapor may be saturated.

Strop inserted between two hawsers, and weaker than the hawsers, so that strop, and not hawsers, will part with any excessive strain.

Is pressure as determined by most instruments and gauges.

Devices used between rotating and stationary parts to separate, and minimized leakage between, areas of unequal pressures.

The semi-circular steel coupling device mounted on a tractor which engages and locks with a chassis semi-trailer.

The depth of the boat below the waterline; the amount of vertical distance from a boats water line to the bottom of it's keel.(2) The depth of water necessary to float a vessel(3) The belly or chord depth of the sail, its fullness

To make headway when there is no apparent wind.

Any object that a navigator may use to find his position, such as permanent land or sea markers, buoys, radiobeacons, and lighthouses.

A powerful, strongly built boat designed to tow or push other vessels, and to assist in maneuvering a ship in a confined area.

Name given to the metal point or ram fixed on the bows of old war galleys and used to pierce the hulls, and thus sink or disable enemy ships.

Are categorized as internal or external heat reactivated. Internal type - Process air enters the dryer through the inlet piping, is then dried as it passes through the desiccant bed, and discharges through the outlet piping as dry air. Regeneration of the ...

A pointed metal spike, used to separate strands of rope in splicing.

The strongest part of a vessel's side, to which the beams, knees, and foot-hooks are bolted. The part between the water's edge and the bulwarks.