Top Flite TOPA0155 - Manual (Page 22)

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R9. Mount a 4" [102mm] wheel (not included) to
the axle with a 3/16" [4.8mm] wheel collar on both
sides. (Only one collar is required for CJM gear.)
Retract the wheels into the wing. Cut the ribs as
necessary to accommodate the wheels. Be certain the
retracts are able to fully lock in the retracted position.
❏
R10. Return to step two and mount the other
retract the same way.
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R11. For the best appearance and durability, use
30-minute epoxy or finishing resin to apply 3/4 oz.
glass cloth (HCAR5000) to the inside surface of the
top sheeting between the ribs of the wheel wells.
This will fuelproof and strengthen the exposed
sheeting inside the wing.
❏
R12. Sand the bottom main spar and center LE
spar even with the bottom of the ribs. Glue pieces of
leftover balsa to the landing gear rails to support the
bottom sheeting after it is cut out for the retracts.
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R13. Paint the wheel area inside the wing with
fuelproof paint. Best results will be achieved with an
airbrush. If you are using a paint that only comes in a
spray can (such as Top Flite LustreKote) and wish to
use an airbrush, spray the paint through a tube into a
cup. Allow LustreKote to stabilize in the cup for about an
hour. Transfer the paint to the spray jar for airbrushing.
When finished mounting the retracts, proceed to
“Sheet the bottom of the center section” on the
next page.
Mount the fixed landing gear
❏
F1. Use 30-minute epoxy to glue both 3/4" x
3/4" x 4" [19.1 x 19.1 x 102mm] grooved
basswood fixed landing gear rails into the
notches in ribs W4 & W5. After the epoxy hardens
use another batch of 30-minute epoxy to glue
both 3/4" x 3/4" x 7/8" [19.1 x 19.1 x 22.2mm]
maple torque blocks to the rails and the ply
doublers where shown on the plan. Note:
Although the balsa shear webs and ply inner
webs do not appear in the photo, they should
already be installed in your model.
❏
F2. Drill 3/16" [4.8mm] holes through the rails
and the torque blocks where shown on the plan
for the fixed landing gear wires. Chamfer the
opening of the holes to accommodate the gear,
then test fit the gear.
Refer to this photo for the following
three steps.
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