A. True

B. False

Pilots do eat during long flights, but don't worry, their co-pilots have their hands on the controls.

ABEAM : Term used by pilots or air traffic controllers to refer to when a point, fix, or object is approximately 90 degrees to the left or right of aircraft track.

ABORTED TAKEOFF :  Also known as Rejected Takeoff, Procedure where the pilot discontinues the takeoff after starting the roll but before reaching V1 (takeoff decision speed).

ABSOLUTE ALTITUDE : Actual height above the surface of the earth or Above Ground Level (AGL).

ABSOLUTE CEILING :  Highest altitude at which an aircraft can maintain level flight.

ACHEK :Primarily associated with large commercial aircraft, the lowest level of inspection in a Continuous Airworthiness Maintenance Program. The entire program consists of A, C, and D checks.

ACCELERATION ERROR :  Magnetic compass error that occurs when the aircraft accelerates while flying on an easterly or westerly heading, causing the compass card to rotate toward North.

ACKNOWLEDGE :  Radio communication request for the recipient to confirm they have received and understood a message or instruction.

ADVERSE YAW :  Tendency of the airplane to yaw in the opposite direction of a turn.

AEROBATICS :  Flying maneuvers involving abrupt changes in aircraft’s attitude, speed, and acceleration.

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ABSOLUTE CEILING - The maximum altitude above sea level at which a heavier-than-air craft can be maintained in level flight.

ACLS - (I) Air cushion landing system, or (II) automatic carrier landing system.

ADF - Automatic Direction Finding; utilizing an automated radio direction finding (RDF) technique.

AEROBATICS - Voluntary maneuvers, initiated by a pilot, other than those for conventional flight.

AERODROME - An area set aside for the operation of aircraft.

AERODYNAMICS - The branch of fluid mechanics dealing with air (gaseous) motion, and the reactions of a body moving within that air.

AEROFOIL (AIRFOIL) - A body or structure shaped to obtain an aerodynamic reaction when travelling through the air.

AERONAUTICS - Concerned with flight within the Earth's atmosphere.

AEROPLANE (AIRPLANE)- Meaning in modern usage a heavier-than-air powered craft.

AEROSTAT - A lighter-than-air craft.

AEW - Airborne early warning; aircraft equipped to give maximum advance warning of approaching hostile aircraft.

AFCS - Automatic flight control system.

AFTERBURNER - Thrust augmentation feature of a gas turbine engine.

Al- Airborne interception; radar device carried by military aircraft to aid location and interception of hostile aircraft.

AILERONS - Movable control surfaces, usually mounted in the trailing-edge of a wing adjacent to the wingtips, to control an aircraft's rolling movements.

AIRBRAKE- A drag-inducing surface which can be deployed in flight, perhaps for speed reducing or limiting, but see also spoilers.

AIRFIELD- More modern term for aerodrome, and applying more particularly to one used by military aircraft.

AIRFLOW- The movement of air about a body (aircraft) in motion.

AIRFOIL (AEROFOIL)- A structure shaped to obtain an aerodynamic reaction in the air, thus affecting the performance of the aircraft.

Airship

A powered lighter AIRFRAME - An aircraft's structure, without power plant and systems.

AIRPLANE (AEROPLANE) - Meaning in modern usage a heavier-than-air powered craft, as opposed to a balloon or glider.

AIRPORT - More modern term for aerodrome, and applying more particularly to one used for civil transport operations.

AIRSCREW - Now little-used word for propeller; believed to have originated to provide distinction from ship's propeller.

AIRSHIP - A powered lighter-than-air craft.

AIRSPEED - The speed of an aircraft through the air, relative to the air mass in which it is moving.

AIRSTRIP - A natural surface used for the operation of aircraft, often in an unimproved state.

ALTIMETER - An instrument, most usually an aneroid barometer, calibrated in meters and/or feet, to indicate an aircraft's height.

ALTITUDE - Height

AMPHIBIAN - An aircraft able to operate from both land and water.

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ANGLE OF INCIDENCE - Angle at which an airfoil surface is normally set in relation to the fore and aft axis of the airframe structure.

ANHEDRAL - Angle which the spanwise axis of an airfoil makes to the fuselage when the wing or tailplane tip is lower than its root attachment point.

APU - Auxiliary power unit. Usually small engine carried on board an aircraft to provide an independent power source for such services as electrics, hydraulics, pneumatics, ventilation, and air conditioning, both on the ground and in the air if needed.

ASI - Air speed indicator.

ASPECT RATIO - Ratio of the span to the chord of an airfoil. Hence, a high aspect ratio wing has great span and narrow chord, and vice versa.

ASTRODOME - Transparent dome, usually on dorsal surface of fuselage, to permit celestial navigation by traditional means.

ASW - Antsubmarine warfare.

ATC - Air traffic control.

AUTOGYRO - An

AWACS Awacs a mobile, long-range radar surveillance and control centre for air defense. The system, as developed by the U.S. Air Force, is mounted in a specially modified Boeing 707 aircraft. Its main radar antenna is mounted on a turntable housed in a circular rotodome 9 m in diameter, elliptical in cross section, and 1.8 m deep at its centre.