GREAT PLANES Profile 38, Instruction Manual

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5. Attach the nylon clevis to the torque rod horn on the
left rudder. Attach the solder clevis to the torque rod horn on
the right rudder. With both rudders centered, mark and cut
the pushrod to fit the solder clevis.
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6. Slide a second silicone clevis retainer onto the pushrod.
Remove the solder clevis from the torque rod horn and silver
solder the solder clevis on the end of the pushrod. Once the
solder clevis has cooled, wipe off the excess flux with
denatured alcohol. To prevent rust from forming, put a light
coat of oil on the solder clevis and pushrod.
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7. Slide the second silicone clevis retainer over the solder
clevis. Attach the clevis to the torque rod horn on the right rudder.
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1. Install the throttle servo as shown on the plan.
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2. Trim the slots for the linkage exits in the wing. Make sure
the wing sheeting does not interfere with the torque rod horns.
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3. Thread a nylon clevis approximately 14 full turns onto
the threaded end of a 2-56 x 4" [102mm] pushrod. Slide a
silicone clevis retainer over the clevis. Attach the clevis to
the torque rod horn at the center of the wing.
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4. Temporarily install both engines, using only two screws
to hold the engines in position. The throttle linkage needs to
be installed at this time to check that the slots are large
enough before the wing is covered.
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5. Thread a nylon clevis approximately 14 full turns onto
the threaded ends of two 2-56 x 12" [305mm] pushrods.
Slide a silicone clevis retainer over the clevis. Attach the
clevises to the two torque rod horns next to the main booms.
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6. Position the torque rod horns so that they are toward
the main spar. Rotate the throttle arms on both engines
toward the wing. Mark the pushrods where they cross the
throttle arm. Make a Z-bend at the mark and install the
pushrods in the throttle arms. Re-attach the clevises to the
torque rod horns.
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7. Connect the throttle servo to the receiver. Switch on the
transmitter and then the receiver, and center the throttle trim.
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8. Center the throttle stick. Rotate the throttle arms on the
engines so the throttle is half open on the engine. Mark the
throttle pushrod where it crosses the servo arm.
Install the Throttle Servo
34