See mean aerodynamic chord
The instrument that displays the ratio of the speed of sound to the true airspeed an aircraft is flying.
The ratio of the true airspeed of the aircraft to the speed of sound in the same atmospheric conditions, named in honor of Ernst Mach, late 19th century physicist.
The direction to or from a radio transmitting station measured relative to magnetic north.
A device for determining direction measured from magnetic north.
A vertical attraction between a compass needle and the magnetic poles. The closer the aircraft is to a pole, the more severe the effect.
The direction an aircraft is pointed with respect to magnetic north.
A self-contained, engine-driven unit that supplies electrical current to the spark plugs; completely independent of the airplane’s electrical system. Normally there are two magnetos per engine.
Lifting force produced when a rotating cylinder produces a pressure differential. This is the same effect that makes a baseball curve or a golf ball slice.
Ability of an aircraft to change directions along a flightpath and withstand the stresses imposed upon it.
The maximum speed at which full, abrupt control movement can be used without overstressing the airframe.
The absolute pressure of the fuel/air mixture within the intake manifold, usually indicated in inches of mercury.
The amount of matter in a body.
The greatest weight that an airplane normally is allowed to have at landing.
The total weight of a loaded aircraft, including all fuel. It is greater than the takeoff weight due to the fuel that will be burned during the taxi and runup operations. Ramp weight may also be referred to as taxi weight.