Ratio of the pressure of a gas to its critical pressure, in like units.

On the land or aground.

(1) When two or more boats tie up alongside each other. (2) Overlapping of edges of two ice-floes, so that one floe is partly supported by the other.

A joint Bureau of the Census' International Trade Administration form used for compiling U.S. exports. It is completed by a shipper and shows the value, weight, destination, etc., of export shipments as well as Schedule B commodity code.

is the design (built-in) compression ratio for a rotary unit having this feature

Filter, Regulator and lubricator sometimes combined in one unit

Across the width of a boat. Also Athwartships.

Beneath the deck

Is energy in transition and is defined in units of Force times Distance. Work cannot be done unless there is movement.

Invisible waves in the electromagnetic spectrum that are used to communicate (radio) - and navigate (radar).

Also bosun, bos'n, bo's'n, and bo'sun, all of which are pronounced bosun. The highest unlicensed rating in the deck department who has immediate charge of all deck hands, oversees deck crew, maintenance and upkeep of the ship except for the engine room an ...

Pieces of hard wood bolted to the outer end of a bowsprit through which are rove the foretopmast stays before they are brought in to the bows and secured.

A rudder, keel, centerboard, or skeg.

The shape of the fore-body of a ship as it thrusts through the sea. A vessel with a slim bow is said to have a fine entry.

Vessel said to be "on her beam ends" when she is lying over so much that her deck beams are nearly vertical.

Percentage of freight payable to broker (by owners in c/p's) or applicable to sale or purchase.

A book containing the official record of a ship's activities together with remarks concerning the state of the weather, etc.

A logistical management system which integrates the sequence of activities from delivery of raw materials to the manufacturer through to delivery of the finished product to the customer into measurable components. "Just in Time" is a typical value-added e ...

The extreme deck fore and aft measurement of a vessel.

The amount of money an ocean carrier pays to the railroad for overland carriage.