时间：2011-10-20 01:04来源：蓝天飞行翻译 作者：航空 点击：次
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Apron management service means a service provided to regulate the activities and the movement of aircraft and vehicles on an apron: Area control centre means a unit established to provide ATC service to controlled flights in control areas under its jurisdiction Area control service means an air traffic control service provided for controlled flights in controlled airspace Area navigation means a method of navigation which permits aircraft operation on any desired flight path within the coverage of stationreferenced navigation aids or within the limits of the capability of selfcontained aids, or a combination of these ATC clearance means authorisation for an aircraft to proceed under conditions specified by an air traffic control unit ATC instruction means a directive issued by ATC for the purpose of requiring a pilot to take a specific action ATS unit means a unit established to provide one or more air traffic service Atmosphere, International Standard means the atmosphere defined in ICAO Document 7488/2. For the purposes of Certification Specifications the following is acceptable– (1) The air is a perfect dry gas (2) The temperature at sea-level is 15°C (3) The pressure at sea-level is 1·013250 x 105 Pa (29·92 in Hg) (1013·2 mbar) (4) The temperature gradient from sea-level to the altitude at which the temperature becomes –56·5°C is 3·25°C per 500 m (1·98°C/1 000 ft) (5) The density at sea level .., under the above conditions is 1·2250 kg/m3 (0·002378 slugs/ft3) for the density at altitudes up to 15 000 m (50 000 ft) Augmented crew means the crew on an aeroplane when it is comprised of more than the minimum crew required by the aeroplane certification Authority means the competent body responsible for the safety regulation of Civil Aviation. (See IEM 1.1, Authority). Autorotation means a rotorcraft flight condition in which the lifting rotor is driven entirely by action of the air when the rotorcraft is in motion. |
