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.
Speed over the ground, either closing speed to the station or waypoint, or speed over the ground in whatever direction the aircraft is going at the moment, depending upon the navigation system used.
An inherent quality of rotating bodies, which causes an applied force to be manifested 90° in the direction of rotation from the point where the force is applied.