A flight for the purpose of (1) returning an aircraft to base; (2) delivering an aircraft from one location to another; (3) moving an aircraft to and from a maintenance base. Ferry flights, under cert [..]

Emergency Locator Transmitter

The movable part of a vertical airfoil which controls the YAW of an aircraft; the fixed part being the FIN.

A twisting, gyroscopic force acting in opposition to an axis of rotation, such as with a turning propeller; aka Torsion.

Visual Flight 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 V [..]

Vertical Speed Indicator. A panel instrument that gauges rate of climb or descent in feet-per-minute (fpm). Also Rate Of Climb Indicator.

The measureable height of an aircraft above the actual terrain.

The maximum altitude above sea level at which an aircraft can maintain level flight under Standard Air conditions.

Any stall made to occur at other than 1g.

Mechanical and electrical units mounted on an engine necessary for its operation, such as starter, magnetos, fuel pumps, etc.