Is a process taking place under constant temperature. To compress the gas from state 1 to state 2, heat must be removed to keep the temperature constant. The pressure change is reciprocal to the change in specific volume.

Resistance to flow. Defined as the difference in pressure upstream and downstream.

Fresh water mixed with sea water, having a density between 1,000 and 1,026 kg/cm3

The westerly distance in an arc from Aries, measured as an angle at the pole or as the intercepted arc of the equinoctial between the hour angle of Aries and the hour angle of the body.

Shippers load and count. All three clauses are used as needed on the bill of lading to exclude the carrier from liability when the cargo is loaded by the shipper.

A small boat designed to be rowed by use of its oars. Some dinghies are rowboats.

Abbreviation for "Currency Adjustment Factor." A charge, expressed as a percentage of a base rate, that is applied to compensate ocean carriers of currency fluctuations.

To double a vessel's mooring lines.

A pneumatic device with a rotary output. Typically of a vane or rack-and-pinion construction.

The method by which a racing yacht may object to the actions of a rival on the basis of a breach of the racing rules. A protest committee will hear both sides, and if the protest is upheld, the offending yacht may be penalized.

The weight shown in a waybill and freight bill, i.e, the invoiced weight.

Lloyds open form

A transportation arrangement in which truck trailers with their loads are moved by train to a destination. Also known as Rail Pigs.

All naval officers with the rank of rear admiral (or its equivalent) and above.

Also rubbing strake or rub strake. An applied or thickened member at the rail, running the length of the boat; serves to protect the hull when alongside a pier or another boat.

A watertight cockpit with scuppers, drains, or bailers that remove water.

A buoy secured to a permanent anchor sunk deeply into the bottom.

Seller is responsible for the cost of placing the goods at a named point of exportation. Some European buyers use this form when they actually mean FOB vessel.

The joining of two timbers by beveling the edges so the same thickness is maintained throughout the length of the joint.

Is the saturation pressure at the critical temperature. It is the highest vapor pressure that the liquid can exert.