Rudder, Elevator And Throttle Pushrod Installation - Hangar 9 P-40B Warhawk 50 ARF Assembly Manual

Rudder, Elevator and
Throttle Pushrod Installation
Required Parts
Fuselage assembly Nylon clevis (2)
Silicone tubing M1.5 x 14 screw (6)
655mm pushrod, rudder 645mm pushrod, elevator
Pushrod connector with hardware
Control horn with backplate (2)

1. Locate the items for this section of the manual.

2. Place the servo horns on the rudder and elevator
servos. Remove any unused arms using side cutters to avoid
interference.
Hangar 9 P-40B Warhawk 50 ARF

3. Slide the pushrod into their associated pushrod
tubes. You will need to remove the covering at the rear of
the fuselage so the pushrod can exit. The Z-bend from the
655mm rudder pushrod connects to the servo 5/8 inch
(16.5mm) from the center of the horn, and the 645mm
elevator pushrod connects to the horn 9/16 inch (14mm)
from the center of the arm. Secure the arms using the
screws from the servos and a #1 Phillips screwdriver.

4. Use a hobby knife and #11 blade to cut a 1/4 inch
(6mm) piece of silicone tubing. Slide the tubing on a nylon
clevis, then thread the clevis on the rudder pushrod. Remove
the backplate from the control horn, then connect the clevis
to the middle hole of the control horn. Align the holes in the
control horn with the rudder hinge line. Use a felt-tipped pen
to mark the locations for the control horn mounting screws.

5. Use a pin vise and a 5/64-inch (2mm) drill bit to
drill the holes through the elevator for the mounting screws.
Place 1–2 drops of thin CA in each hole to harden the
surrounding wood.

6. Attach the control horn to the rudder using three
M1.4 x 14 screws and the control horn backplate.
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