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Great Planes Spitfire 25 GP/EP ARF - GPMA1478 User Manual

Page 14

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1. Locate and remove the covering from the pushrod

exits on both sides of the fuse beneath the stab.

2. Insert one of the 19-3/4" [502mm] pushrod wires through

the left pushrod exit slot into the fuse. Hook a nylon control horn
onto the Z-bend in the pushrod wire. Align the control horn onto
the underside of the left elevator half and position the holes over
the hinge line at a slight inward angle matching the angle of the
pushrod. When satisfied, mark the locations for the control horn
mounting screws. Drill the holes using a 5/64" [2mm] drill bit and
install the control horn with two 2mm x 15mm machine screws
and a control horn backplate.

3. With the other 19-3/4" [502mm] pushrod, install a control

horn on the right side of the rudder in the same manner.

4. Using the hardware supplied with the servos, install

the elevator and rudder servo into the fuse with the servo
splines facing forward. Be sure to reinforce the servo
mounting screw holes with thin CA.

5. As you did with the ailerons, cut three arms from the

elevator and rudder servo arms. Enlarge the outer hole of each

Install the Elevator & Rudder

Pushrods & Servos

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