An aneroid barometer arranged so that the deflection of the aneroid capsule actuates a pen which graphs a record on a rotating drum. Sometimes called aneroidograph.

CFM flowing through the compressor inlet filter or inlet valve under rated conditions

An instrument which measures the effective terrestrial radiation. See Angstrom pyrgeometer.

Uncharted navigational danger that has been reported but has not been verified by survey.

The air compressor continues to run, usually at full RPM, but no air is delivered because the inlet is either closed off or modified, not allowing inlet air to be trapped.

A line led to a sail, but is not currently in use. The line currently in use is known as the working sheet. Usually the working and lazy sheets change when the boat is tacked.

Defect in the action of an aneroid barometer resulting in a sluggish adjustment of the index toward the correct reading when the barometer is subjected to a large and rapid change in pressure.

Floating Production Storage and Offloading vessel.Large tanker, often without propulsion of her own, staying in a fixed position to process and store oil awaiting to be loaded on another vessel. In July 1999 the largest one was the 'Girassol built by Hyun ...

International Monetary Fund.

A sighting taken for celestial navigation at noon, when the sun is at its highest point in the sky.

A term used to describe the hot gas pressure on the outlet side of the refrigeration compression.

A state of resistance to corrosion or anodic dissolution of a metal caused by thermodynamic stability of the metal.

A conically shaped, copper rain gauge shield.

(1) A metal whose potential is highly positive relative to the hydrogen electrode. (2) A metal with marked resistance to chemical reaction, particularly to oxidation and to evolution by inorganic acids. The term as often used is synonymous with precious m ...

A turbine that is driven by high velocity jets of water or steam from a nozzle directed to vanes or buckets attached to a wheel. (A pelton wheel is an impulse hydroturbine).

The statement that the viscosity of air is independent of the density of air.

The part of a rotating element that counteracts any inherent thrust developed by the impellers.

Non-Transportation Use

A curve showing the variation of temperature with height in the free air. See lapse rate.

A salt or ester of carbonic acid.