直升机飞行教员手册 Helicopter Flight Instructor Manual
时间：2012-06-08 09:45来源：蓝天飞行翻译 作者：航空 点击：次
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To view this page ensure that Adobe Flash Player version 9.0.124 or greater is installed. Initiate a flare while in the turn. Roll out facing into wind. At a low forward speed, level the helicopter. Come to a hover or resume forward speed. Maintain height throughout. Maintain balanced flight and prevent yaw. Emphasise that the student must keep the helicopter in balance and the airspeed above translation in the 180° turn into wind, otherwise the helicopter will be set up for vortex ring state or settling with power. AIR EXERCISE Demonstrate a straight-ahead deceleration from cruising flight into wind. Student practice Demonstrate a straight-ahead rapid deceleration into wind. Student practice Demonstrate a rapid deceleration involving a 90° turn into wind. (Note that pedals move in relation to pedals and not cyclic) Student practice Demonstrate a rapid deceleration involving a 180° turn into wind. Student practice TIPS FOR INSTRUCTORS Decelerations involving a turn into wind require a high level of coordination and accuracy. They should be introduced as an advanced exercise towards the end of the training syllabus. It is important to stress smoothness and accuracy. The student should initially master gentle decelerations from airspeeds outside the avoid areas of the height/velocity diagram for the helicopter to the hover, with the accent on smoothness, accuracy of height and RPM. Overpitching, yaw and tail rotor drift are common errors in the early stages and should be corrected before speeding up the manoeuvre. After smoothness and accuracy have been established, the entry speeds can gradually be increased to the cruise and the rate of deceleration increased. Loss of height as translational lift is lost is a common fault. 20 SLOPING GROUND GROUND SCHOOL POINTS Dynamic rollover Flight manual: Limitations Tail rotor drift and roll PREPARATORY INSTRUCTION Aim For the student to learn procedures and techniques for operating from sloping ground |
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