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General aviation
The science and practice of artificial flight which involves the design, development, production, operation of aircraft or heavier-than-air machines.
Industry: Aviation
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General aviation
Aspect ratio
Aviation; General aviation
The ratio of the span to the chord of an airfoil—a high-aspect ratio wing has wide span and narrow chord, and vice-versa for a low-aspect ratio wing.
Instrument meteorological conditions (IMC)
Aviation; General aviation
Meteorological conditions expressed in terms of visibility, distance from clouds, and ceiling less than minima specified for visual meteorological conditions (VMC).
Indicated airspeed (IAS)
Aviation; General aviation
A direct instrument reading obtained from an air speed indicator uncorrected for altitude, temperature, atmospheric density, or instrument error.
Iron compass
Aviation; General aviation
Railroad tracks, favoured by pilots of yore as a dependable aid to surface navigation before radio.
Longeron
Aviation; General aviation
A principal longitudinal member of a fuselage's framing, usually continuous across a number of supporting points.
Liquid compass
Aviation; General aviation
A non-electronic, calibratable compass floating in a liquid as a panel instrument
Landing wires
Aviation; General aviation
Interplane bracing wires that help support wingloads when the plane is on the ground.