Top Flite TOPA0905 - Manual (Page 27)

Install the Retract Hardware
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1. Decide on a location to mount the air fill valve.
Glue the plywood air valve mounting plate inside the
fuselage.
We mounted ours on the bottom of the
fuselage. This keeps the valve somewhat hidden but
it is not the most easily accessible location. If you do
not mind it being visible you may wish to locate it on
the fuselage in a place more convenient for filling the
air tank. Using a Dremel tool and grinding bit, make
a hole in the fiberglass fuselage through the hole in
the plywood air valve mounting plate.
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2. Following the manufacturer’s instructions for
your air system, install the air lines required for
installation to the air tank. Install the tank into the
hole in the bulkhead that will hold the tank.
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3. Locate the plywood air tank support. Glue it in
place in the cut outs in the fuel tank structure.
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4. Slide the tank into the support, positioning it so that
the air tank does not protrude into the location for the
retract servo. Glue the tank to the supports with either
hot melt glue or a mixture of epoxy and micro balloons.
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5 Glue the components of the air valve tray together.
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6. Glue the air valve tray over the servo opening
just above the air tank.
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7. Install the threaded ball through the hole in the air
valve, securing it with an 0-80 nut and thread locker.
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