RANS S-20 RAVEN
TEXT MANUAL
09
/01/2013
11A-02
AILERON RIGGING
Neutral position and cable tension
(AFTER WING INSTALLATION/ AFTER SETTING OF WASHOUT)
8.
Center forward control stick in neutral position (aileron neutral) and
securely fix in this position.
9.
Adjust the turnbuckles to set the aileron bell cranks to neutral position as
shown in
FIGURE 11A-09
. With the stick centered and the bell cranks in
neutral position, the cables should be tight.
10.
Without a cable tension meter, adjusting the cables will have to be an
educated guess. The correct tension does not overload or “drag” the
system, nor will cables feel spongy. If you have a cable tension meter
refer back to
FIGURE 11A-09
for tension information.
11.
Using the modified wing washout rigging board as shown in
FIGURE 11A-11
. Hold the rigging board so that it is contacting the bottom
side of the leading edge spar and the bottom side of the trailing edge spar
at approximate aileron half span. The trailing edge of the aileron should
rest on the shim (level with lower surface of both spars).
12.
With the control sticks and bell cranks neutral, install the short aileron
push-pull tube.
CAUTION: Rod Ends must be turned into the push pull
tube at least 10 complete turns.
13.
Tighten all connections and check.
Deflections
14.
For deflection measurements, center control stick for neutral position,
move and hold control stick against stop and measure.
15.
Measurement is taken on top surface of aileron at approximate half span
on top of aileron rib. Deflection angle is in reference to trailing edge of
Aileron.
16.
Adjust aileron stops (1/4" Plain Bolts) on Control Stick Torque Tube as
required. Make sure the Aileron Leading Edge is not contacting the Aileron
Hinge.
•
Up:
33
(Tolerance is +2.0
/ -1.0
)
•
Down:
30
(Tolerance is +2.0
/ -1.0
)
