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3) Using a 5/64” drill bit, enlarge the fourth hole
out from the center of each side of the servo arm.
Insert the L-bends in the 2mm x 95mm pushrod wires
down through the holes. Place a nylon snap keeper
over each wire to hold them securely to the servo arm.
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4) Plug the aileron servo lead into your receiver
and turn on the radio system. Center the aileron trim
lever on your transmitter.
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5) Attach the servo arm to the servo. The servo
arm should be centered on the servo. Install the servo
arm retaining screw. See photo # 43 below.
Photo # 43
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6) Use a couple of pieces of masking tape to
hold the ailerons centered.
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7) Using a modeling knife, cut two pieces of fuel
tubing to 1/4” long. Slide the one length of fuel tub-
ing over the threaded end of each pushrod wire.
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8) Thread one nylon clevis onto the threaded
end of each wire until the pin in the clevises lines up
with the hole in the adjustable control horns. Use a
pair of pliers to help hold the wires and keep them
from turning.
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9) Snap the clevises to the control horns and
slide the tubing up over the clevises to secure them in
place. See photo # 44 below.
Photo # 44
ADJUSTING THE AILERON LINKAGE
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10) With your radio system still plugged in and
turned on, check the aileron control surface direction
and amount of deflection in each aileron. Push the
aileron control stick all the way to the right. The aile-
ron on the right wing half should move up and the
aileron on the left wing half should move down (look-
ing from the back of the wing with the wing right
side up). If they don't, move the servo reversing switch
on your transmitter. This will change the direction
(refer to your radio instructions for more information
on this function).
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11) Push the aileron control stick all the way to
the right. Using a ruler, measure the amount the trail-
ing edge of each aileron moves. This measurement
should be 3/16”.
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12) If the aileron control surface deflection is
more or less than 3/16” it must be changed. If your
radio is equipped with digital or manual end point
adjustments, make those adjustments using the trans-
mitter. If your radio does not have this feature, you
can adjust the control horns and servo arm. If the
ailerons are moving more than 3/16” you can move
the pushrods in one hole toward the center of the servo
arm. If the ailerons are moving less than 3/16” you
can thread the adjustable connectors down further.
When adjusted properly, both ailerons should move
3/16” up and down.
FINAL ASSEMBLY
INSTALLING THE FUEL LINES
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1) Using a modeling knife, cut each of the two
fuel lines to the correct length and attach them to the
engine. The vent/pressure line connects to the pres-
sure nipple on the muffler. The fuel pickup line
connects to the fuel nipple on the carburetor (or rear
needle valve assembly). See photo # 45 below.
Photo # 45