GREAT PLANES Profile 38, Instruction Manual

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4. Glue two of the die-cut 3-ply pushrod guides together,
aligning the edges. Drill a 3/16" [5mm] hole through the
pushrod guide. Cut a 1/4" [6mm] long piece from the 1/8" [3mm]
ID plastic tube. Glue the plastic tube in the pushrod guide.
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5. Slide the pushrod guide over the elevator pushrod.
Center the elevator servo arm. Mark the elevator pushrod
where it crosses the elevator servo arm. Make an L-bend at
the mark and attach the elevator pushrod to the elevator
servo arm with a Faslink. Check the movement of the servo
arm. If the pushrod hits the servo with the Faslink attached,
move the pushrod out one hole on the servo arm.
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6. Position the pushrod guide between the leading edge
of the stabilizer and the aft edge of the radiator housing
mount. Mark the location on the inside sheeting of the main
boom. Move the pushrod guide out of the way and use a
T-pin to make sure no braces are under the sheeting. If you
find a brace under the sheeting, move the guide slightly
toward the stabilizer and check again.
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7. Use a sharp hobby knife to cut a hole in the inner main
boom sheeting for the pushrod guide. Depending on the
bend in the pushrod, you may need to shorten the guide. Do
not glue the guide in the main boom until after the plane is
covered.
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8. Install the rudder pushrod the same way.
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1. Drill a 1/8" [3mm] hole in both rudders where the fin
comes to a point. Make sure the drill bit is perpendicular to
the rudder.
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2. Apply thin CA around the holes on both sides of the
rudder to harden the wood.
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3. After the CA has hardened, insert 4-40 x 1/2" [13mm]
machine screws with a #4 washers through the holes, from
the outside of the rudder. Attach a 4-40 torque rod horn on
both screws.
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4. Thread a nylon clevis approximately 14 full turns onto
the threaded end of a 2-56 x 17-1/2" [445mm] pushrod.
Slide a silicone clevis retainer over the clevis.
Connect the Rudders
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