CHAPTER 34
PAGE 8
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RA - FLUGZEUGBAU GmbH
SERVICE MANUAL EXTRA 200
PAGE DATE: 1. July 1996
34-20-00 ATTITUDE AND DIRECTION
This Section describes that portion of the system which
uses magnetic or inertia forces to sense and display the
direction or attitude of the aircraft.
34-20-01 Magnetic Compass
The magnetic compass shows the course of the aircraft in
relation to magnetic north. Its measuring range is 360° in
increments of 5°. Its case is filled with silicone oil to
dampen the movements. The compass correction card is
located as shown in Chapter 31.
The magnetic compass must be inspected whenever the
engine, magnetizable metals or parts of the electrical resp.
ignition system has been replaced, changed or added,
otherwise per Chapter 05.
34-20-02 Turn and Bank Indicator
The turn and bank indicator indicates the turning rate of the
aircraft about its vertical axis. This instrument comprises an
electrically driven gyro, suspended in a gimbal system and
whose spin axis is parallel to the lateral axis of the aircraft.
The gimbal is connected to the bar pointer of the indicator
by a lever system. This bar pointer also indicates the rate at
which the aircraft is turning.
In addition, the front of the instrument houses a sphere
located in a globe filled with a damping fluid. The change
in this indication shows the pilot whether the aircraft is
slipping.
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