Essential Aviation Concepts Flashcards
Absolute Accuracy
Ability to determine present position in space independently (used by pilots).
Absolute Altitude
Actual distance between an aircraft and the terrain over which it is flying.
Absolute Pressure
Pressure measured from the reference of zero pressure or vacuum.
Acceleration Error
Magnetic compass error apparent when the aircraft accelerates while flying on an easterly or westerly heading, causing the compass card to rotate toward North.
Accelerate-Go Distance
The distance required to accelerate to V1 with all engines at takeoff power, experience an engine failure at V1, and continue the takeoff on the remaining engines. The runway required includes the distance required to climb to 35 feet by which time V2 speed must be attained.
Accelerate-Stop Distance
The distance required to accelerate to V1 with all engines at takeoff and bring the airplane to a stop using braking action only.
Accelerometer
Part of inertial navigation system that accurately measures the force of acceleration in one direction.
Adjustable-Pitch Propeller
A propeller with blades whose pitch can be adjusted on the ground with the engine not running, but which cannot be adjusted in flight, AKA ground adjustable propeller.
Adjustable Stabilizer
A stabilizer that can be adjusted in flight to trim the airplane, thereby allowing the airplane to fly hands-off at any given airspeed.
Advection Fog
Fog resulting from the movement of warm, humid air over a cold surface.
Adverse Yaw
A condition of flight in which the nose of an airplane tends to yaw toward the outside of the turn. This is caused by the higher induced drag on the outside wing, which is also producing more lift. Induced drag is a by-product of the lift associated with the outside wing.
Aerodynamics
The science of the action of air on an object, and with the motion of air on other gases. Aerodynamics deals with the production of lift by the aircraft, the relative wind, and the atmosphere.
Aeronautical Chart
Map used in air navigation containing all or part of the following; topographic features, hazards and obstructions, navigation aids, navigation routes, designated airspace, and airports.
Aeronautical Decision-Making (ADM)
Systematic approach to the mental process used by pilots to consistently determine the best course of action in response to a given set of circumstances.
Agonic Line
An irregular imaginary line across the surface of the Earth along along which the magnetic and geographic poles are in alignment, and along which there is no magnetic variation.
