FLANGE, A projection on the engine for attachment of 發動機法蘭盤，

components on the engine.                             發動機上用來連接部件的凸緣。

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FLAP (LEADING EDGE), A hinged moveable part on         襟翼（前緣），

the underside of the leading edge of the wing for        鉸連在機翼前緣下表面的可動部件，在飛機低速飛行時

increasing lift at low airplane speed.                 增加升力。

FLAP (TRAILING EDGE), A movable part on the trailing   襟翼（后緣），

edge of the wing used for increasing lift at low airplane 機翼后緣的可動部份。在飛機低速飛行時增加升力。后

speed. Flaps may be triple-slotted.                    緣襟翼可多至三片，每片之間有縫。

FLAP LOAD LIMITER, An electro-mechanical               襟翼載荷限制器，

component for preventing further flap extension during   用來防止襟翼在飛機速度過高時過度伸出的機電裝置。

periods of excessive airplane speed.

FLAP RETRACTION ALTITUDE, An altitude selected         收襟翼高度，

for acceleration and retraction of flaps.                為飛機加速及襟翼收回而選的高度。

FLAP SETTING, The selected position of the aircraft    襟翼位置設定，

flaps and other related high lift devices.               飛機襟翼和其他有關增升裝置的選定位置。

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FLAP SPEED SCHEDULE, Provides recommended              襟翼速度計劃，

maneuvering speeds for various flap settings. The flap   提供各個襟翼位置的推薦機動飛行速度，此計劃以VREF