Hangar 9 P-51D Blue Nose 60 ARF User Manual

Page 8

Hangar 9 P-51 Mustang 60 ARF Assembly Manual

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Step 23

Use a drill and 1/16-inch (1.5mm) drill bit to drill start holes

for the aileron control horn. Only drill about 1/4-inch (6mm)

into the aileron to avoid drilling through the top of the

aileron. There is a hard point in the wing so you will need to

be careful when drilling.

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Step 24

Use a #1 Phillips screwdriver to start the three #2 x 3/8-inch

sheet metal screws in each hole. Leave about 1/16-inch

(1.5mm) of the screw exposed when threading them into the

aileron.

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Step 25

After threading the screws into the holes, you will need to

apply 2–3 drops of thin CA into each hole to harden the

surrounding wood. This provides a harder surface for the

screws making them more secure when installed. Skipping

this step may not provide a secure mounting of the aileron

control horn, which could cause it to fail in flight.

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Step 26

Once the CA has cured, you can attach the control horn to

the aileron using three #2 x 3/8-inch sheet metal screws,

tightening them with a #1 Phillips screwdriver.

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Step 27

Use a hobby knife with a #11 blade to cut a 1/4-inch (6mm)

piece of tubing from the 2-inch (52mm) safety tubing

included with the kit. Slide the tubing on a clevis, and then

thread the clevis 10-turns on a 6-inch (152mm) threaded

pushrod.

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Step 28

Connect the clevis to the center hole of the aileron control

horn. Slide the safety tubing onto the clevis so it won’t open

accidentally in flight.

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Step 18

Apply 2–3 drops of thin CA into each hole to harden the

surrounding wood. This provides a harder surface for the

screws making them more secure when installed.

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Step 19

Use a #1 Phillips screwdriver and four #2 x 3/8-inch sheet

metal screws to secure the servo cover to the wing.

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Step 20

Use a ruler to measure in 2

-inch (75mm) from the inside

edge of the aileron. Use a pencil to make a small mark on

the aileron.

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Step 21

Use side cutters to remove the servo horn backplate from a

control horn.

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Step 22

Position the control horn on the aileron so the center of the

horn is aligned with the mark made in the previous step.

When positioning the control horn, align the front edge of

the horn with the edge of the fixed surface as shown to

minimize any differential of the control surface. Use a pencil

to transfer the location for the three mounting screws on the

aileron.