Model Tech P-47 Thunderbolt Instructions For Final Assembly page 49

Remove the servo cover assembly and enlarge only the holes in the servo cover using a 3/32" drill bit.
Reinstall the servo cover assembly using the four 3mm x 5mm wood screws provided.
Repeat the previous procedures to install the second servo cover assembly in the other half of the wing.
Step 3: Installing the Aileron Pushrods
Repeat the procedures above to install the remaining aileron pushrod wire onto the second aileron servo arm.
Step 4: Installing the Aileron Control Horns & Clevises
Use a couple of pieces of masking tape to hold one of the ailerons centered.
Mark the positions of the mounting screws using a pencil, then remove the control horn.
Carefully drill the holes for the mounting screws using a 5/64" drill bit.
IMPORTANT
Make sure to drill the holes straight down and not at an angle.
Install the control horn and backplate using two 2mm x 30mm machine screws.
Don't overtighten the screws. You don't want to crush the aileron.
Connect your radio system and plug the aileron servo lead into its proper slot in the receiver. Double-check that the
aileron trim lever on your transmitter is centered.
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Enlarge the fourth hole out from the center of one con-
trol horn using a 5/64" drill bit.
Install the 90º bend in one 60mm long pushrod wire to
the servo arm using one nylon snap-keeper. When installing
the snap-keeper, make sure it "snaps" firmly into place over
the pushrod wire.
The pushrod wire should be toward the outside of the
servo arm as shown.
Position one nylon control horn onto the bottom of the
aileron, aligning the centerline of the control horn directly
behind the servo arm.
Make sure the control horn is perpendicular to the hinge
line and adjust the control horn so that the clevis attachment
holes are directly over the hinge line.
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