The borrowing of money by the master using his ship as security.

Loss of effective propeller thrust caused by the blades cutting across the column of water sucked along by the propeller instead of working in it. Can also lead to heavy vibration of the vessel.

Thin sheets of copper applied to the hull of a wooden ship below the waterline to prevent the toredo worm eating the planks, and also to limit the growth of weed, barnacles or other marine life.

A mast supported by the use of lines or wire known as stays and shrouds.

The latest time cargo may be delivered to a terminal for loading to a scheduled train or ship.

The tackle used for running guns in and out.

Any system, usually block & tackle or hydraulic, used to hold the boom down. This is useful for maintaining proper sail shape by exerting a downward pull on the boom, particularly when running or on a broad reach.

The tallest mast; the forward mast of a yawl or ketch; the mast furthest aft on a schooner

The navigable water to leeward of a vessel.

Turbines or engines in which gas expands, does work, and undergoes a drop in temperature.

T/C remuneration

A certificate issued by the U.S. Department of Agriculture to satisfy import regulations of foreign countries; indicates that a U.S. shipment has been inspected and found free from harmful pests and plant diseases.

Difference between minimum and maximum pressures for an air compressor. Also called cut in-cut out or load-no load pressure range.

Compartment in the hold of a containership into which a shipping container fits exactly.

A watertight covering, usually small, that may be removed so the interior of the hull can be inspected or water removed.

In lore, the flag flown by a pirate ship - a white skull on a black background with crossed bones below the skull - although there is no evidence that such a flag was ever flown.

To run a line completely through and out of a block, fairlead, etc.

The same as FOB named inland carrier, except the seller pays the freight charges of the inland carrier.

2,240 pounds (1016.05 kilograms)

The horsepower input to the compressor shaft, or more generally to any driven machine shaft.