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❏ ❏
7. Place a nylon control horn in line with the last hole in
the aileron servo arm. When positioned properly the control
horn will rest on a hardwood plate in the aileron. Mark the
location of the mounting holes onto the aileron. Drill a 1/16"
[1.6mm] hole on the marks, drilling through the plywood plate
but not through the top of the aileron. Insert and remove a #2
x 3/8" [9.5mm] screw into each of the holes. Apply a couple
drops of thin CA into the holes to harden the threads. Once the
glue has hardened attach the control horn to the aileron with
two #2 x 3/8" [9.5mm] screws.
❏ ❏
8. Locate a .074" x 6" [.074" x 152mm] pushrod wire
threaded on one end. Screw a nylon clevis onto the
threaded end of the wire 20 full turns. Install a silicone clevis
keeper onto the clevis. Then, install the clevis in the second
hole from the end of the aileron control horn.
❏ ❏
9. Be sure the aileron servo is centered. Enlarge the
outer hole in the servo arm with a Hobbico
(or a #48 or 5/64" [2mm] drill bit). Center the aileron and
align the wire pushrod with the hole in the end of the servo
arm. Using a marker, mark the location where the wire aligns
with the hole in the servo arm. On that mark make a 90°
bend. From the bend, measure an additional 3/16" [4.8mm].
Then, cut off the excess pushrod wire.
❏ ❏
10. Install the wire into the hole in the servo arm using
a nylon FasLink as shown in the sketch.
❏ ❏
mounting it using the same procedure for the aileron servo
(no servo extension is required for the flap servo). Install the
servo arm onto the flap servo with the arm pointing towards
the wing tip. Important!! When instructed to do the left wing,
the arm on the flap servo must point towards the root rib, not
the wing tip as was done on the right wing panel.
❏ ❏
in the flap servo arm. The nylon control horn should be
positioned 180 degrees opposite from the way the aileron
control horn was installed. When positioned properly the
control horn will rest on a hardwood plate in the flap. Mark
the location of the mounting holes onto the aileron. Drill a
1/16" [1.6mm] hole on the marks, drilling through the
plywood plate but not through the top of the flap. Insert and
remove a #2 x 3/8" [9.5mm] screw into each of the holes.
Apply a couple drops of thin CA into the holes to harden the
threads. Once the glue has hardened attach the control horn
®
Servo Horn Drill
to the flap with two #2 x 3/8" [9.5mm] screws.
❏ ❏
Hobbico Servo Horn Drill (or a #48 or 5/64" [2mm] drill bit).
Position the flap servo arm as shown.
9
11. Install the flap servo into the flap servo opening,
12. Place a nylon control horn in line with the last hole
13. Enlarge the outer hole in the flap servo arm with a
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