Volpe National Transportation Systems Center

A term generally applied to paints to describe holidays, holes, and skips in a film. Also used to describe shrinkage in castings and weld.

Routine broadcast of meteorological information for aircraft in flight.

A unit of electrical force equal to that amount of electromotive force that will cause a steady current of one ampere to flow through a resistance of one ohm.

A unit of electrical measurement equal to the product of a volt and an ampere.

The amount of electromotive force, measured in volts, that exists between two points.

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

A stationary, spirally shaped passage that converts velocity head to pressure.

A thermometer used in aircraft which automatically corrects for adiabatic and frictional temperature rises by imparting a rotary motion to the air passing the thermal sensing element.

A measure of the amount of "spin" (or rotation) in the atmosphere.

Vessel of Opportunity Skimming System

(Compressors/Gas Turbines) Is an alarm system that has maybe 3 sensors connected to it and it will require minimum of 2 of the 3 to alarm before the alarm will act. There is a controller connected that does the logic decision based on set parameters.

A journey made at sea by a vessel, usually including both the outbound and homebound passages.

A contract whereby the shipowner places the vessel at the disposal of the charterer for one or more voyages, the shipowner being responsible for the operation of the vessel.

Voyages where the ship is not generally underway for periods long enough for seafarers to require sleep, or long off-duty periods, during the voyages.

Vapour pressure

Vessel Pays Dues

Variable Pitch Propeller

Vessel Particulars Questionnaire

Vessel Response Plan