Great Planes Rapture 40 - GPMA0220 - Manual (Page 16)

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34. Cut a 1/2" [13mm] strip from the top sheeting over
the opening for the aileron servo.
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35. Return to step 4 and build the right wing panel. Be
sure to place the right panel wing plan over your building
board so as not to accidentally build another left panel.
Again, do the left wing first.
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1. Mark one of the basswood shaped wing trailing
edges where the left aileron torque rod will go through.
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2. Use a rotary tool or a hobby knife to cut a groove to
accommodate the left aileron torque rod.
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3. Cut a matching groove in the wing trailing edge.
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4. Roughen the plastic bearing tube on the torque rod
with coarse sandpaper. Use thick or medium CA to glue the
tube into the shaped trailing edge. Use caution not to
inadvertently get any glue inside the bearing tube. Hint: Add
a small dab of petroleum jelly to the end of the bearing tube
to keep epoxy from getting in.
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5. Glue the shaped wing trailing edge to the wing. The
wing trailing edge should extend past the root end of the
wing by approximately 1/32" [0.8mm] so the angle can be
sanded to match R1.
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6. Sand the top, bottom and end of the shaped wing
trailing edge as necessary to blend with the rest of the wing.
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7. Prepare the other shaped wing trailing edge for the
right wing and glue it into position the same way. Note: Be
certain to cut the groove in the correct location so as not
inadvertently make another left side!
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8. Fit one of the 24" [609mm] shaped balsa ailerons up
to the wing. If necessary, trim one end of the aileron so there
will be an approximately 3/32" [2.4mm] gap on both ends.
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9. The same as was done for the elevators, mark the
location for the torque rod on the aileron, then drill a 1/8"
[3.2mm] hole and cut the groove. Mark and cut all the hinge
slots as well.
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10. Cut eight more 3/4" x 1" [19 x 25mm] CA hinges.
Test fit the aileron to the wing with four of the hinges. Make
adjustments where necessary.
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11. Remove the aileron from the wing and shape the
leading edge to a “V” as shown on the plan.
Make the Ailerons
16