ALTITUDE INTERVENTION
"Interference" in height, the pilot controls the altitude of the aircraft at the time of mode VNAV (vertical navigation).
AMBIENT
Surrounds the surrounding atmosphere.
AMBIENT PRESSURE
Ambient pressure, air pressure around the object, measured in pounds per square inch (psi).
AMBIENT TEMPERATURE
Ambient temperature, the temperature around the object, measured in degrees Celsius (C) or Fahrenheit (F).
AMPERE
AMP, a unit of measurement of electric current. The voltage of one volt across the resistance of one ohm produces a current of one ampere.
AMPLITUDE
Amplitude, size or magnitude of the wave oscillations of voltage or current.
ANALOG
ANALOG, quantitative or shaped characteristics that vary by a constant range.
ANALOG-TO-DIGITAL
Analog-digital conversion process of the analog signal to digital.
ANEROID
Aneroid sealed by flex device comprising a low-pressure air, which expands or shrinks while changing the ambient pressure around the apparatus.
ANGLE GEARBOX
Bevel gear, part of the engine, mechanically driven by compressor that drives the gearbox. A mechanical device for changing the direction of drive transmission.