User Manual
❏ 4. Glue together both 1/8" [3mm] plywood aft
servo trays. Test fit the two elevator, one rudder and
one tail wheel servo in the tray. Make any
adjustments required so the servos fit.
❏ 5. Place the servo tray in the fuselage.
Refer to this photo while hooking up the servos.
❏ 6. Place all four servos in the servo tray. Make
three one-arm servo arms and one two-arm servo
arm from the arms that came with your servos. Place
the arms on the servos as shown in the photo.
❏ 7. The same as was done for the aileron and flap
pushrods, mark the elevator and rudder pushrods
where they are to be cut for soldering on the clevises.
One at a time, unthread each pushrod from the clevis
on the control horn, remove the pushrod from the
fuselage, cut it to the correct length, then solder on
the clevis. Reinstall the pushrod from the front, then
connect them to the servo arms and control horns.
Don’t forget to use a silicone retainer on all the
clevises and to install 4-40 nuts on the pushrods
ahead of the thread-on clevises.
❏ 8. Connect the two clevises with the threaded,
brass couplers and nuts on them to both ends of the
tail steering servo arm. Put a small piece of tape on
one of the pull/pull cables coming from the tail
steering arm. Center the tail wheel and slide the tape
along the cable to mark where it will be looped-over
to go into the brass coupler.
❏ 9. Take the servo arm off the tail steering servo
and disconnect the cable from the ball link on the
steering arm. Pull the cable up through the guide
tube. Use the tape as a reference for where to bend
the cable to loop it through the brass coupler. Secure
the cable to the coupler with a swage.
❏ 10. Guide the looped end of the cable back down
through the guide tube and reconnect it to the ball
link ball on the steering arm. Mark and connect the
other cable to the brass coupler on the other side of
the servo arm same way.
❏ 11. Mark the hole locations for the servo mounting
screws on the servo tray. Remove the servo tray, then
drill 1/16" [1.6mm] holes at the marks. Screw, then
remove a screw in each hole. Add a few drops of thin
CA and allow to harden.
❏ 12. Securely glue the servo tray in the fuselage
with 30-minute epoxy. Mount the servos in the tray
and hookup the pushrods.
We’ll finish up the rest of the radio installation
and mount the components for the air system
after the engine has been mounted.
Mount the engine
The following instructions illustrate how to mount a
U.S. Engines 41cc gas engine. A Great Planes
Gasoline Engine Mount (GPMG2000—not included)
and the parts included with this model will provide
the correct alignment and spacing. If not using a
U.S. Engines 41cc engine, use the appropriate
hardware to mount your engine (or engine mount)
centered on the horizontal and vertical alignment
marks on the firewall. Note that the back of the
spinner backplate should be 7-1/2" to 7-3/4" [190 to
200mm] from the firewall.
❏ 1. If using a U.S. Engines 41cc engine, use the
engine mount template in the back of the manual to
mark the engine mounting bolt locations on a Great
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