Top Flite TOPA0140 - Manual (Page 26)

hatch where shown on the plan. Position the servo
within the lines you marked inside the hatch
indicating where the rails are.
❏ ❏
7. Temporarily mount the hatch with your
aileron servo in the wing.
❏
8. Return to step 1 and mount the hatch and
aileron servo on the right wing panel.
Perform steps 9 through 13 only if you are
building flaps.
❏
9. Make a flap pushrod by threading a nylon
clevis onto a .074" x 6" [1.9 x 152mm] pushrod
about 20 turns. Make a 90 degree bend in the
pushrod where it crosses the flap bellcrank to
match the plan. Temporarily snap a nylon Faslink
onto the pushrod. Cut the excess pushrod so 1/16"
[1mm] protrudes from the Faslink. Connect the
clevis to the outer hole of a small nylon control
horn. Make another flap pushrod the same way.
❏
10. Cut the exit holes in the bottom wing skin
for both flap pushrods where shown on the plan.
Temporarily position a bottom flap skin in its
location on the wing. Temporarily connect the flap
pushrods to the bellcranks and rest the flap horn
on the flap. Make sure the exit holes are large
enough and in the correct location to allow the
pushrods to pass through the bottom wing skin.
Make adjustments if necessary.
❏
11. Remove the flap pushrods but keep
them nearby.
❏
12. Sand the bottom of the wing around the flap
pushrod exits. This will be difficult to do after you
connect the pushrods because they may be in
your way.
❏
13. Connect the flap pushrods to the bellcranks
with the Faslinks.
❏
14. Install your aileron servo wires and a
Y-harness in the wing. We used a Hobbico ®
Command ™ Y-harness (HCAM2500). Cut a hole in
the top sheeting of the center section to allow the
connector to exit. Make sure you will be able to
remove the servos and disconnect them from the
Y-harness from outside the wing after it is fully
sheeted. You should be able to access the
connectors through the wheel wells. If you’re not
installing retracts, you may need a longer Y-harness.
Perform step 15 only if you are installing
retracts.
❏
15. Move your servo cords out of the way and
coat the inside of the wing around the wheel wells
and landing gear cutout with fuel proof paint. We
mixed K&B blue and yellow paint to simulate the
green Zinc Chromate coating aluminum airplanes
receive (refer to the Expert Tip in the
Painting
section on page 51 for more hints on painting).
Hint: Save the leftover paint you just mixed to coat
the inside of the top sheeting later on.
❏
16. Sand the tops of the ribs, spars, leading
edge and trailing edge so they smoothly blend.
❏
17. Inspect the wing and reinforce any glue
joints that don’t look strong.
❏
18. Sand the trailing edge of the bottom sheeting
at the tip to accommodate the top sheeting.
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