时间：2011-09-15 17:20来源：蓝天飞行翻译 作者：航空 点击：次
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FCS flight control system fcst forecast FDR flight data recorder, popularly known as a 'black box' (actually painted bright orange), by which various parameters of an aircraft's flight performance are recorded for analysis in the event of an incident or accident. feather(of a propeller) to set the angle of CS or VP propeller edge-on to the airflow to minimise drag and rotation following engine failure on multi-engined aircraft. Also applies to motor gliders which have feathering propellers to enhance engine-off soaring performance. final(s) final approach. The part of a landing sequence or aerodrome circuit procedure in which the aircraft has made its final turn and is inbound to the active runway. Downwind is the segment of the circuit paralleling the runway and flown on a reciprocal heading. Base leg is the crosswind segment bringing the aircraft from the downwind leg to final approach. The leg before downwind is called the Crosswind leg. FIC Flight Information Centre FIR Flight Information Region. UK airspace is divided into two FIRs, London and Scottish. FIS Flight Information Service, providing a variety of services and information (but not control) to air traffic in the two FIRs above. FJ fast jet FL flight level, a level of constant atmospheric pressure shown by an altimeter set to a standard 1013.2 millibars, expressed in rounds hundreds of feet, thus FL330 is 33,000 feet. flag warning signal incorporated in certain navigation and flight instruments indicating that the instrument is not operating satisfactorily or that the strength of signals being received from ground stations is below acceptable limits. flat rating throttling or other restriction of engine power ouput (usually in turboprops and turboshafts) at sea level to enable it to give constant predictable power at higher operating altitudes. flameout combustion failure in a turbine engine resulting in power loss. |
