aerial photography noun photography done from an aircraft in the air aero-prefix 1. referring to the air aerodynamic 2. referring to aircraft o aero-engine o aero-tow aerobaticadjective referring to aerobatics o Loops and rolls are aerobatic manoeuvres.
aerodromenoun any area of land or water designed for the taking off and landing of aircraft o Airports and military air bases or stations are types of aerodrome. o All aerodromes are marked on charts. Abbreviation A/D □ disused aerodrome an aerodrome which is no longer in use for the purpose of taking off and landing aeroplanes
Aerodromeboundaries ‘ plural noun the physical or geographical limits of an aerodrome aerodrome circuit noun the pattern and direction of aircraft movement in the air around the aerodrome aerodrome QFE noun the barometric pressure setting at which the altimeter reads zero when the aircraft is on the runway aerodrome QN noun the barometric pressure setting at which the altimeter reads aerodrome elevation when the aircraft is on the runway aerodrome surveillance monitoring indicator noun same as airport surface detection equipment
aerodrome traffic zone noun an area of protected airspace around an aerodrome, which pilots need permission to enter or to move in. Abbreviation ATZ aerodynamic adjective 1. referring to the way in which objects are affected when they move through the atmosphere 2. referring to a smooth rounded shape which moves easily through the air □ aerodynamicm design a streamlined shape that enables something to move easily through the air aerodynamic braking
aero-enginenoun an engine used in aircraft o Most piston aero-engines are cooled by air. aerofoilnoun a surface which is shaped to produce more lift than drag when moved through the air o Wings, ailerons, elevators, fins and propellers are all examples of aerofoils. (note: The US English word is airfoil.) aeronautical adjective referring to aeronautics aeronautical chart noun a map used in air navigation which may include topographic features, hazards and obstructions, navigational aids and routes, designated airspace and airports
noun a notice issued by an aviation authority in which information is given about administrative, technical, safety or operational matters Aeronautical Information Publication noun a document issued by a state in which information is given about aviation in that country.
aeroplanenoun a power-driven, heavier-than-air craft with fixed wings (note: Many people use the words aeroplane and aircraft as if they had exactly the same meaning. However, aeroplanes, hot-air balloons, helicopters, airships and gliders are all aircraft. The US English is airplane.)
AFCS abbreviation automatic flight control system
AFDS abbreviation autopilot flight director system
AFI abbreviation assistant flying instructor
AFIC abbreviation assistant flying instructor course
AFIS abbreviation aerodrome flight information service
AFS abbreviation aeronautical fixed service
aftadjective towards the rear part of the aircraft The rear part of the fuselage is called the aft section. □ aft cabin the passenger compartment at the back of the aircraft adverb rearwards or backwards □ to move the control column aft to move the control column backwards. Opposite fore, forward
afteradjective positioned closer to the rear of an aircraft adverb closer to the rear of an aircraft afterburnernoun a system that injects fuel into the hot exhaust gases of a jet engine in order to increase thrust
AFTN abbreviation aeronautical fixed telecommunication network agentnoun 1. a chemical substance which causes a change o If de-icing fluid is used as an anti-icing agent it should be sprayed onto the aircraft before the onset of icing. □ extinguishing agent a substance used to put out fires 2. a person who represents a company or arranges something for a company o the agent for British Airways o a travel agent aggregatenoun the total obtained by adding o The aggregate of the capacity of all the fuel tanks is 50 gallons. ■ verb to add or come together to form a mass or total o Ice crystals aggregate to form snowflakes. AGL abbreviation above ground level agreeverb 1. to have the same
idea or opinion about something o The crew agreed with the findings of the investigation. 2. to come to an understanding o After hours of discussion, the cabin staff agreed to call off the planned strike.
accepted The millibar is an agreed unit of pressure.
agreementnoun 1. the state of having the same idea or opinion as somebody □ we are in agreement we agree 2. a document in which the things that two or more people or organisations have agreed to do are written down o Regional Air Navigation Agreements
aheadadverb in front □ look ahead look some distance in front of you □ straight ahead directly in front ahead of /a’hed av/ preposition 1. in front of o Air ahead of a cold front is warmer than air behind a cold front. 2. in advance of or at an earlier time than o The flight from Paris arrived 10 minutes ahead of schedule.
AHRS noun a sensor which provides information on the pitch, bank and heading of an aircraft. Full form attitude heading reference system AI abbreviation attitude indicator AIAA abbreviation area of intense air activity
AIC abbreviation aeronautical information circular
aileronnoun a horizontal control surface hinged to the main-plane, which enables an aeroplane to bank or roll o By rotating the yoke the ailerons are moved and the aircraft rolls into a turn. (note: The word comes from the French ‘aile’, meaning ‘wing’.) aimnoun a goal or objective o A 100% safe operation is the aim of all airline companies. verb to intend or to try to do something □ we aim to succeed we intend to succeed AIP abbreviation Aeronautical Information Publication
airnoun the mixture of gases which forms the Earth’s atmosphere o Air enters the cabin through an inlet. AIRAC abbreviation aeronautical information regulation and control Air Accident Investigation Branch noun the department of the CAA of the United Kingdom responsible for establishing the cause of accidents. Abbreviation AAIB airborneadjective lifted and kept in the air by aerodynamic forces o Shortly after the aircraft becomes airborne, the undercarriage is retracted.
airborne weather radar noun a radar installation in an aircraft to give the flight crew information about the weather along their route. Abbreviation AWR air-breathing engine an engine that burns a mixture of liquid fuel and air (note: There are four types of air-breathing engine: turbo jet, turbo prop, turbofan and ramjet.) air bridge‘ noun a link provided by aircraft that carry people and supplies between two places, especially in situations where travel by land is not possible
Air-cooledadjective cooled by means of a flow of air □ air-cooled engines piston aero-engines cooled by air, not water air corridornoun a route that aircraft must take through an area in which flying is restricted aircraftnoun a machine that is able to travel through the air Aeroplanes, gliders, balloons, airships, helicopters, etc., are all aircraft. Abbreviation ACFT (note: Aircraft has no plural form.)