While this list does not include all aviation
terminology, it is the purpose of this glossary to aid
the general viewer in better understanding aviation
terms as it pertains to content on this website.
An auxiliary control mounted on a primary control surface, which automatically moves in the direction opposite the primary control to provide an aerodynamic assist in the movement of the control. Sometimes referred to as a servo tab.
A method of augmenting the GPS integrity solution by using a nonsatellite input source. To ensure that baro-aiding is available, the current altimeter setting must be entered as described in the operating manual.