Load/unload control system that tries to maximize compressor efficiency by matching air delivery and air demand. Compressor is operated at full load or idle.

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

Depending upon as a condition

Is the energy a substance possesses by virtue of its motion or velocity. Used primarily in calculations for dynamic and ejector type compressors.

The horsepower calculated from compressor-indicator diagrams. Applied only to displacement type compressors.

Joining the ends of two lines without increasing the thickness over the length of the splice, so that the splice will pass freely through a block.

The typical winds for a particular region and time of year.

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

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.

A term applied to a bracket supporting the after end of the propeller shaft and the propeller.

Let the sail out by easing the sheet.

Sudden and rapid flow of tide in certain rivers and estuaries which rolls up in the form of a wave. also known as Eagre.

Bank that opens a straight or negotiable letter of credit and assumes the obligation to pay the bank or beneficiary if the documents presented are in accordance with the terms of the letter of credit.

The gauge pressure at which a safety valve visibly and audibly opens or at setting which a relief valve discharges an unbroken stream of liquid.

A verb with a variety of meanings. To round in is to haul in quickly; to round up is to bring a sailing vessel head into the wind; to round down a tackle is to overhaul it; to round a mark is to pass a racing mark.

A pillar or handhold on a boat - Hand-hold fittings mounted on cabin tops and sides for personal safety when moving around the boat.

Sailor's slang for anchor.

Temporarily placed longitudinal bulkheads used to prevent bulk cargo from shifting.

A port designated by the government of a country for duty-free entry of any non-prohibited goods. Merchandise may be stored, displayed, used for manufacturing, etc., within the zone and re-exported without duties.

A device designed to enable accumulated liquids to be held for draining in a compressed air system.