air traffic controller /e. trf.k k.ntr.υl./ noun a person who works in air traffic control and whose main task is to ensure correct separation of aircraft in all phases of flight . The air traffic controller approved the emer-gency landing. Abbreviation ATC. . controller
air traffic movements /e. trf.k muvm.nts/ plural noun the number of aircraft taking off and landing . an increase in air traffic movements
airway /e.we./ noun an area of the sky, usually rectangular in cross-sec-tion, along which civil aircraft fly from place to place . Airways provide a high degree of safety by ensuring adequate separation between aircraft. . Aircraft inside an airway are controlled by ATC.
(NOTE: Airways are usually 10 nm wide with a centreline joining navigational beacons.)
Airways /e.we.z/ noun a commer-cial company operating flights (NOTE: Usually used in the names of compa-nies, e.g. British Airways, South African Airways)
airworthiness /e.wein.s/ noun
the state of an aircraft with regard to whether it can fly safely, as determined by a national certifying authority
airworthiness directive noun a regulation issued by an aviation author-ity when a problem has been identified with a particular aircraft part. Abbrevi-ation AD
airworthy /e.wei/ adjective meet-
ing the standards of a national certify-ing authority . It is the pilot’s responsi-bility to ensure that the aircraft is airworthy.
AIS abbreviation aeronautical informa-tion services
15 allowance
aisle /a.l/ a long passageway between the seats in the passenger cabin of an airliner口 aisle seat a seat which is by an aisle, as opposed to a window seat
alarm /.'lɑ:m/ noun 1. fear or worry 0
If the ammeter shows a high level of charge after start-up, it is quite normal and no cause for alarm. 2. a warning sound or light 0 In the event of fire or overheat, the control unit will produce an alarm. _ verb to frighten or worry 0 Severe turbulence may alarm passen-gers.
alert /.'l1:t/ adjective fully awake, watchful and ready to deal with any sit-uation 0 The crew must be alert at all times to the possibility of hijacking, bombs and stowaways. _ noun a signal, warning everyone to be alert口 to be on the alert to be watchful and ready for anything that may happen _ verb to warn 0 It is the cabin staff’s responsibil-ity to alert the flight crew if they see smoke coming from an engine.
alight /.'la.t/ adjective on fire 0
Although the passenger thought he had extinguished his cigarette, it was still alight when he threw it into the waste disposal bin. _ verb (formal) 1. (of peo-ple) to leave or get off an aeroplane 0 At some airports, passengers alight onto the apron when they leave the aircraft.
2. (of aircraft) to land 0 An aeroplane may not fly over a city below such a height as would allow it to alight in the event of an engine failure.
align /.'la.n/ verb 1. to position along an axis or line 0 The nose wheel must be aligned in a fore and aft direction dur-ing retraction. 2. to set in a correct posi-tion in relation to something else 0
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