9. Sandwich a 1/4 HD ball link between the two horns as
shown. Retain the ball link by threading the #4-40 SHCS
through both horns and ball link and lock in place with the
#4 lock nut. This keeps two horn parallel to each other
and creates a slop-free joint between control horns and
ball link which is critical to the precision of aileron
movement.
Doc. No.# AW70-104-01, Copy Right 2004, AirWild Hobbies, Inc.
page 21
10. Once again re-check horn alignment. When satisfied, glue
both horns in place with thin CA. Saturate the balsa core with thin CA and then harden it
with CA Kicker.
This step is very critical as it dictates the bonding strength of the
entire setup.
If your slots are too loose, use gap-filling medium CA to fill the voids.
11. When all is done, remove ball link.
12. Repeat 3~11 for the second wing / aileron pair.
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Aileron servo slot has been precut to accept standard-
size servo. Illustration on the right demonstrates our
intended configuration for left aileron. Refer to illustration
often as we proceed. Let’s work on the LEFT wing first.
Then repeat for the RIGHT wing.
Servo Type: metal gear, 100 oz. in. output torque
minimal, digital servo preferable
Servo Arm: aluminum half arm, 1” length
10. Drop in aileron servo and orient it so that the servo
output shaft is closer to the aileron hinge line.
11. Route servo pigtail out through wing root. Use a
music wire or coast hanger wire to facilitate routing.
Be careful not to damage any of the balsa ribs.
12. Construct push rod. We recommend the following
components which are included in our optional
hardware package;
Titanium Turnbuckle Push Rod x1 Hanger 9 #3550
1/4 HD Ball Link
x2 DuBro #899
13. Install servo arm. Orient servo arm at 90 degrees to servo case. Hook up servo to
receiver and turn on transmitter while performing this setup for reason mentioned
previously. Turn off radio when done.
14. Hook up push rod to servo arm and EFP control horns. Adjust the turnbuckle push rod
until aileron is in neutral and servo arm is at 90 degrees to the servo body.
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