J. Perkins Panic, Instruction Manual

Page: 10 / 14

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42. Using the supplied items shown in Step A below,
follow Steps A – D and make the elevator pushrod. At the
end of the process the pushrod should measure
approximately 610mm from the elevator servo clevis pin to
the elevator control horn clevis pin.
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A. Cut the central carbon elevator pushrod tube to a
length of 480mm.
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B. Cut and bend the two piano wire ends as shown. The
finished measurement should be 95mm.
▢ C. Drill a 3mm hole, 50mm from each end of the central
carbon pushrod tube.
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D. Carefully slide the bent end of the piano wire section
inside the carbon tube and locate it in the 3mm hole.
Slightly angling the bend on the end of the piano wire can
help make this process easier. Once in place, slide a balsa
shim inside the tube, locking the piano wire in place, then
wick thin cyano between the wood and tube to hold it firm.
Attach the 2mm nut and the clevis. Repeat the process at
the other end of the carbon pushrod.
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43. Take one of the control surface horns and modify it to
match the version shown on the left. This will allow full
unobstructed deflection of the elevator, when fitted.
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44. Pass the elevator pushrod through the fuselage and
connect to the elevator servo control arm.