Flying Legends P-51D Mustang Manual de instrucciones - Página 6

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Section: Aileron/Flap Linkage

Step 9

Prepare your flap servos by fitting their rubber grommets

and ferrules, then screw them to the moulded right-angled

mounting brackets as shown. Note that M3 screws are

used to screw the servos to these brackets. Some servo

ferrules may be too small to accept these screws, so will

have to be changed to a suitable type. Due to the size

of the flaps, we recommend using heavy duty aluminium

servo horns. Make up the flap linkage as shown and

screw to the servo horn.

A Futaba S9156 Servo was used on our prototype model.

Step 10

Remove the flap servo cover and screw the flap servo

in position with the output horn towards the flap. Note

the orientation of the servo's control horn when the flap

is extended / lowered. When the flap is up / retracted,

the servo should be as far forward as possible without

touching the wing joiner tube.

Step 11

Using the balljointed end of the flap pushrod as a guide,

mark the flap control horn's position on the flap. Now

remove the flap from the wing and slot the flap for the

control horn as shown. Note that the slot is towards the

top of the flap.

Step 12

Temporarily fit the control horn into the slot in the flap and

check for clearance as the flap is lowered and raised.

Roughen the control horn and glue it into the flap using

Hysol or 30 minute epoxy. Refit the flap and adjust the

linkage accordingly. Repeat this procedure for the second

flap. Ensure the horn positions are identical on both flaps.