BRISTELL BRMAERO Bristell B23, Руководство по обслуживанию

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Airplane Maintenance Manual Bristell
B23
Chapter 20
Chapter 20 Page 14 Issue: 30-Sep-2020
Measuring Elevator Deflections
▶ Set the protractor with the deflecting pointer on the
trailing edge of the elevator by means of the clamps.
▶ Set the elevator to neutral position.
▶ Set the protractor to 0° – starting value of measuring.
▶ Deflect the elevator to extreme positions by means of the
control stick and read the deflection.
▶ Check values of deflections according to the Tab. 3.
Measuring Rudder Deflections
▶ The airplane manufacturer uses a special jig for
measuring rudder deflections that is slid on the vertical
tail unit and it is possible directly to read the rudder
deflection. If you do not have this special jig, use the
alternative procedure:
▶ Set the rudder to neutral position.
▶ Put the rod to the trailing edge of the rudder and mark
the lower margin of the rudder trailing edge.
▶ Deflect the rudder to extreme positions and with the rule
measure distance from the sign to the lower margin of
the rudder trailing edge.
▶ Calculate angle and compare it with the value mentioned
in Tab. 3.
Measuring Trim Tab Deflections
▶ Set the protractor with the deflecting pointer to the
trailing edge of the trim tab by means of the clamp.
▶ Set the trim tab to neutral position.
▶ Set the protractor to 0° – starting value of measuring.
▶ By means of the trim control actuator deflect the trim tab
to extreme positions and read the deflection.
▶ Check values of deflections according to the Tab. 3.
20-60-02 Condition and Tension of Rudder Control Cables
▶ Carefully inspect the control cable especially on the
following areas: