A ADF Aerobatics Aerodynamics Aeronautics Aileron Airband Aircraft Aircraft engine controls Airfield Airfield traffic zone (ATZ, and MATZ) Airfoil Air navigation Airport Airspeed Airspeed indicator Air traffic control Air traffic information system (ATIS) Altimeter Altitude Angle of attack Angle of incidence Aspect ratio (wing) Assisted take off Attitude indicator Aviation Aviation System Avionics B Bypass ratio C Canard Chord (aircraft) Circuit (airfield) Civil Aviation Authority (CAA - UK authority) Coefficient of lift Compass Controlled airspace D Deep stall Delta wing Drag Ducted fan Direction indicator E Elevator Elevon F Federal Aviation Administration (FAA - US authority) Flap Flight Flight controls Flight instruments Flight level Fly-by-wire Flying Flying wing Form drag G General aviation Glass cockpit Go around GPS Ground effect I IFR Instrument flight rules ILS Instrument landing system Incidents in Aviation International Civil Aviation Organisation (ICAO) J Jet engine Joystick L Landing Leading edge extension Lift (force) Lift-induced drag M Meteorology N Non-directional beacon (NDB) O Overhead join P Performance envelope Private Pilot's License Q QFE QNH R Relaxed stability Rudder Ruddervator Runway S Spin (flight) Spoilers Slats Specific fuel consumption Stall Stick shaker Swedish Civil Aviation Administration Swing-wing T T-tail Taking off Taxiing Turn and bank indicator V V-tail Vertical speed indicator VFR Visual flight rules Vne VOR VHF omni-range (type of navigational beacon) W Wing Winglet