The ratio and percent of the actual delivered capacity (measured at inlet temperature, pressure and gas composition) to the piston displacement.

A soft, cylindrical fabric bag for clothes and personal possessions

The natural tendency of a sailboat to come up into the wind. The helm must be held over to keep the boat from coming up

A suspension of fine solid or liquid particles in a gas.

Assault upon a seaman, by Master, while at sea.

A signboard attached to a daybeacon to convey navigational information presenting one of several standard shapes (square, triangle, rectangle) and colors (red, green, orange, yellow, or black). Daymarks usually have reflective material indicating the sha ...

A tube with a narrow throat (a constriction) that increases the velocity and lowers the pressure of the liquid passing through it, creating a partial vacuum immediately after the constriction in the tube. The vacuum created has a sucking effect, and a ven ...

An in-house bill of lading. A duplicate copy.

A raft used in case of emergencies, such as sinking or fire.

Freight charges paid by the consignor (shipper) prior to the release of the bills of lading by the carrier.

One of the large square openings in the deck of a ship through which freight is hoisted in or out, and access is had to the hold.

Ribbon, yarn, or other lightweight material attached to rigging or sails to indicate wind action or direction. Proper use of the telltales can help sailors improve their sail trim.

A train of a specified number of railcars, perhaps 100, which remain as a unit for a designated destination or until a change in routing is made.

Weight of the goods alone without any immediate wrappings, e.g., the weight of the contents of a tin can without the weight of the can.

Machines cooled by water circulated through jackets surrounding the cylinders or casings.

A cap for the top of the mast.

Gallons per minute

Category of bulk carrier 100.000-180.00DWT so called she is too large to pass Suez and Panama Canals.

The operation of bringing two lines together; term also applied to other objects.

Steering; keeping the ship on the course given (no lazy steering).