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Hangar 9 B25J Mitchell ARF - Section 9: Retract Valve and Hardware

Hangar 9 B25J Mitchell ARF
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52
All pushrod hardware and mounting plates are supplied
by the modeler.
Step 1
You will need to fabricate a plywood plate to mount the
servo and the retract valve on. We made our mount from
lightweight plywood and a small piece of triangle stock.
Step 2
We use a plastic 2-56 clevis to attach a 2-56 pushrod to
the retract valve and then make a “Z” bend on the other
end of the pushrod where it attaches to the servo arm. The
pushrod should be placed on the servo arm a distance
of approximately 1/2-inch (13mm) out from center of the
servo arm.
Note: Use travel volume on your radio
to allow a maximum 1/4-inch (6mm)
of travel on the pushrod. Be sure to
not over-throw the pushrod.
Step 3
Mount the air fill valve on the fuselage so that you
have easy access to make the connection. The filler
valve will be less noticeable if mounted towards the
bottom of the fuselage. We chose to mount the valve
just forward of the leading edge of the wing next to the
steering servo access hatch.
Section 9: Retract Valve and Hardware