A compressor belonging to the group of displacement reciprocating compressors.

Filtering unit that separates solids and liquid droplets from gas (air). Widely used in removing oil from a gas or air.

Canvas, wood or rope used over the side to protect a vessel from chafing when alongside another vessel or a dock.

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

To repeat an order for information to the crew.

A method of lowering the sail in sections so that it can be reefed quickly.

Those causes of loss for which the carrier is not legally liable. The elemental risks of ocean transport.

A mat of fibers that provide a barrier to particles entrained in the flow of air or gas.

A crack or hole that accidentally admits a gas or lets it escape.

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

Pointed iron implement used in separating the strands of rope in splicing, marling, etc.

A portable generator which can be attached to a refrigerated container to power the refrigeration unit during transit.

Material that stores energy, although mass will also retain coolness. The thermal storage capacity of a material is a measure of the material's ability to absorb and store heat.

A docking line going at approximately a right angle from the boat to the dock, preventing movement away from the dock.

Old nickname for a second mate.

The one who steers the boat.

(1) To bind a line with marline, cord, twine, wire, or other "small stuff" to prevent accidental opening or unraveling (2) To freeze up, as a valve.

To attain headway (to get going or pick up speed).

Numbers of large pieces of floating ice that have come together and lie more or less in contact.

Sundays, holidays excluded