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. Explain that should engine fai lure occur at the hover-taxi, the pilot should avoid any rearward movement of the cyc lic and accept a run-on landing. AIR EXERCISE Engine failure in the hover Demonstrate into wind as follows: Give a verbal warning. Close the throttle. Counteract yaw and drift. Cushion the landing. Student practice Engine failure at the hover taxi Demonstrate into the wind. Student practice. TIPS FOR INSTRUCTORS This exercise should be introduced by providing the student with plenty of warning before each practice. The manoeuvre can then be speeded-up to flight test standards where the student is given minimal warning of the practice engine failure. Closing the throttle and cushioning the landing with the collective takes a good deal of manual dexterity in most helicopters. Since the aim of this exercise is for students to react to an engine failure, there is little point in their learning throttle control; in other words, the instructor should control the throttle. Tail-rotor failure at the hover or hover-taxi, which does require coordinated use of the throttle and collective by the student, should be practised at a later stage in training. Always ensure that the surface is suitable for this exercise, particularly after rain. This is a good exercise to demonstrate to the student the landing stage of an autorotation. It is a good skill to practise just before starting a full-on autorotation exercise. Exercise caution, as the student may react to the simulated engine failure by rapidly lowering the collective. Be sure to give a verbal warning before closing the throttle. 11 TRANSITIONS GROUND SCHOOL POINTS Note: Transitions can be taught in conjunction with the lesson on CIRCUITS unless a student displays problems with the concepts associated with the TRANSITION. Ground effect Translational lift Dissymmetry of lift and flap back Tail rotor drift Vortex ring |
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