Hangar 9 P-40 Warhawk Assembly Manual page 41

 
Step 5
Place 2–3 drops of thin CA into the hole to harden the
wood. Repeat this for each of the three holes.
 
Step 6
Attach the control horn using three 2-56 x 1/2" screws
and the control back plate.
Section 13: Linkage Installation
 
Step 7
Center the elevator servo electronically using the radio
system. Install a servo arm onto the elevator servo. Attach
the pushrod with clevis to the control horn. Physically
place the elevator control surface in neutral. Mark the
pushrod where it crosses the holes in the servo arm.
 
Step 8
Bend the wire 90 degrees at the mark made in the
previous step.
 
Step 9
Cut the wire 3/8" above the bend.
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