22 Terms
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Airplanes & equipment
Industry: Aviation
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Airplanes & equipment
visual meteorological conditions (VMC)
Aviation; Airplanes & equipment
Meteorological conditions expressed in terms of visibility, distance from clouds, and ceiling equal to or better than specified minima.
venturi tube
Aviation; Airplanes & equipment
A small, hourglass-shaped metal tube, usually set laterally on a fuselage in the slipstream to create suction for gyroscopic panel instruments. Now outdated by more sophisticated means.
vertical speed indicator (VSI)
Aviation; Airplanes & equipment
A panel instrument that gauges rate of climb or descent in feet-per-minute (fpm). Also Rate Of Climb Indicator.
visual flight rules (VFR)
Aviation; Airplanes & equipment
Rules that govern the procedures for conducting flight under visual conditions. The term is also used in the US to indicate weather conditions that are equal to or greater than minimum VFR ...
wash-in, wash-out
Aviation; Airplanes & equipment
A method of increasing lift by increasing (Wash-In) or decreasing (Wash-Out) the ANGLE OF INCIDENCE on the outer part of an airplane wing to counteract the effects of engine TORQUE.
winglet
Aviation; Airplanes & equipment
A small, stabilizing, rudderlike addition to the tips of a wing to control or employ air movement.
absolute ceiling
Aviation; Airplanes & equipment
The maximum altitude above sea level at which an aircraft can maintain level flight under Standard Air conditions.
