直升機(jī)飛行教員手冊 Helicopter Flight Instructor Manual
時間：2012-06-08 09:45來源：藍(lán)天飛行翻譯 作者：航空 點擊：次
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To view this page ensure that Adobe Flash Player version 9.0.124 or greater is installed. Emphasise the use of verbal comfirmation before commencing any turns. The use of a model helicopter will make preparatory instruction much more effective. Stress the need for correct, comfortable posture in these early stages. 04 POWER AND ATTITUDE CHANGES AND STRAIGHT AND LEVEL FLIGHT GROUND SCHOOL POINTS Flight manual: engine, transmission and airspeed limitations PREPARATORY INSTRUCTION Aim For the student to learn: ? the relationship of horizon and fuselage attitudes to indicated airspeed ? the correct methods of selecting or changing engine power (e.g. manifold pressure and rotor rpm) ? how to fly straight and level in balanced flight at selected airspeeds or power settings Review Exercise 3: Effects of Controls Motivation Airspeed and power changes form the basis of all helicopter flying, and they must be performed smoothly and accurately. Airmanship ? Lookout ? Engine and transmission limitations Teaching Points ? Airspeed changes Explain how a reduction in speed from the cruise to a specific airspeed is effected (e.g. from 70 to 50 knots): Move the cyclic aft to raise the nose of the helicopter. Pause while the airspeed stabilises. Adjust airspeed as necessary. Explain the method of accelerating to a specific airspeed: Move the cyclic forward to lower the nose of the helicopter. Pause while the airspeed stabilises. Adjust the airspeed as necessary. Point out that cyclic movements should be small and made smoothly. Large or hurried movements should be avoided. ? Power changes Describe the relationship between collective and throttle movement, as appropriate to type. Describe the effect that power changes have on balanced flight due to torque changes. Where appropriate, describe the methods of: changing manifold pressure at constant rotor RPM |
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