Make the Aileron Pushrods. Tower Hobbies Ultimate, Ultimate Bipe GP/EP ARF

Make the Aileron Pushrods

Skip this section if you’re using four aileron servos.

1/4"

[6mm]

1/4"

[6mm]

5-7/8"

[150mm]

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1. Make two 5-7/8" [150mm] pushrods by cutting an equal amount from both ends of a 6-3/8" [160mm] pushrod. Use a metal fi le or a cutoff wheel to remove any burrs from the cut ends of the wire.

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4. Adjust the length of the pushrod so the ailerons will be in synch with each other. Operate the ailerons with your transmitter to make sure everything moves smoothly.

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5. Hook up the other aileron the same way.

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2. Prepare the pushrods as shown with a clevis and silicone retainer on both ends and a small control horn on one end.

(The clevis is in the second-from-the-outer hole in the horn.)

PREPARE THE MODEL FOR FLIGHT

Apply the Decals

Cut the included decals from the decal sheet and apply them to the plane.

Set the Control Throws

In addition to the C.G., the control throws have a major effect on how the model fl ies and whether or not your fi rst fl ight will be successful. Do not skip this important step and make sure the throws are as specifi ed. If necessary, use programming in your transmitter and/or change the locations of the pushrods in the servo arms and/or control horns to adjust the throw.

CAUTION:

If using a brushless motor and powering the receiver and servos through the BEC in the ESC, the throws should be set and checked

without

the propeller mounted to the motor. If the throttle is inadvertently bumped the motor will turn possibly causing injury or damage, so make sure the propeller is removed while operating the radio in the workshop.

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3. Turn the model upside-down. Connect one of the pushrods to the aileron horn previously mounted to the bottom aileron, then mount the other horn to the aileron on the top wing with two more M2 x 10 screws and the back plate.

30

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1.

Before checking the throws, be certain to set the

Fail Safe function in your transmitter

so that, in the case of signal loss (or if the transmitter is inadvertently turned off before power is disconnected from the motor) the motor will not turn. Refer to the instructions that came with your radio control system to set the Fail Safe.

With Tactic radios, the Fail Safe is set by pressing the “Link” button in the receiver while the transmitter and receiver are powered. When signal is lost, the throttle will go to the setting where the throttle stick was when the Link button was pressed, so to set the Fail Safe correctly make sure the throttle stick is

all the way down

(motor off) when pressing the Link button.