直升機飛行教員手冊 Helicopter Flight Instructor Manual

時間：2012-06-08 09:45來源：藍天飛行翻譯 作者：航空 點擊：次

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State the manufacturer’s Indicated Airspeed and rotor RPM for minimum rate of descent in autorotation.
Describe the entry, as follows:
At a safe altitude, straight and level cruise, into wind, over a suitable area, complete airmanship checks.
Lower collective.
Use throttle to prevent overspeed, as appropriate to type.
When collective is fully down, split needles and select recommended engine RPM.
Prevent yaw. Explain that:
Heading and airspeed are controlled with cyclic, as in powered flight
Rotor RPM is controlled by collective.
Point out that turns in autorotation increase the rate of descent and rotor RPM.
Describe the overshoot as follows:
This is an introduction to autorotation, which is a basic and essential emergency procedure.
Airmanship
Pre-entry checks, to include:
Pre-landing check
Lookout, particularly below
Select suitable precautionary landing area
Verbal warning.
Post-entry checks as appropriate to type.
Aircraft performance limitations, specifically rotor RPM.
At a safe altitude, rejoin the needles, using the throttle as appropriate to type,
Apply climb power.
Select or maintain climb airspeed. Prevent yaw.
Explain that whereas the reaction has to be quick in the event of an actual engine failure, the accent during this introduction will be on smoothness and accuracy.
AIR EXERCISE
Demonstrate a straight-ahead autorotation with overshoot to the climb.
Student practice
Demonstrate 90°, 180° and 360° autorotations with overshoot to the climb. Point out increased rotor RPM and rate of descent.
Student practice
Demonstrate an autorotational landing.
TIPS FOR INSTRUCTORS
Ground presentations and air demonstrations should make the point that autorotations need not be a stressful or frightening manoeuvre.
A low cloud base will cause demonstrations to be rushed. Fly this exercise in conditions that will allow sufficient altitude to make the demonstrations effective.

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