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RANS S-21 OUTBOUND
The elevator must be mass balanced. If this is not yet completed, instructions can
be found in the elevator assembly section of this manual
NEUTRAL POSITION
1.
In neutral position, the elevator is level with the horizontal stabilizer. Verify by
comparing the leading edge of the balance arm portion of the Elevator to the
Horizontal Stabilizer with the Control Sticks in neutral position.
2.
It is possible to adjust at the connection of the Control Stick Push-Pull Tubes.
Rod Ends must be screwed into fittings a minimum of 10 full threads.
DEFLECTIONS
3.
Determine neutral position of elevator as reference for deflection measurement.
Use of a Digital Protractor with a zero function works well.
4.
Set Elevator to neutral position. Set digital protractor on top of Elevator at half
span and zero protractor.
5.
Move Control Stick to forward position. Adjust for down deflection and drill
Aluminum Stop Sleeve on 5/8" Push-Pull Tube. Rivet Stop Sleeve in place with
Stainless Steel Rivet. Control Stick should clear Instrument Panel. Move Control
Stick to aft position. Adjust for up deflection. Drill Stop Sleeve and rivet. Measure
deflection on elevator at approximately half span.
Up:
Down:
6.
If adjustment is needed adjust the Rod Ends at the connection of the Control
Stick Push-Pull Tubes. CAUTION: A minimum of 10 full turns thread engagement
must be assured.
TEXT MANUAL

ELEVATOR

IMPORTANT:
CAUTION
33.0 (Tolerance is +1.0 / -1.0)
25.0 (Tolerance is +1.0 / -1.0)
150
09/11/2018

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S-21 outbound

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