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BUILD THE WING
Install the Ailerons
Do the right wing first so your work matches the
photos the first time through. You can do one wing at a
time, or work on them together.
1. Drill a 3/32" [2.4mm] hole, 1/2" [13mm] deep in the
center of each hinge slot to allow the CA to "wick" in. Follow-
up with a #11 blade to clean out the slots.
Hint: If you have one, use a high-speed rotary tool to drill
the holes.
2. Use a sharp #11 blade to cut a strip of covering from
the hinge slots in the wing and aileron.
3. Cut fourteen 3/4" x 1" [19 x 25mm]
hinges from the CA hinge strip. Snip off
the corners so they go in easier.
4. Test fit the ailerons to the wing with the hinges. If
the hinges don't remain centered, stick a pin through the
middle of the hinge to hold it in position.
5. Remove any pins you may have inserted into the
hinges. Adjust the aileron so there is a small gap between the
LE of the aileron and the wing. The gap should be small, just
enough to see light through or to slip a piece of paper through.
6. Apply six drops of thin CA to the top and bottom of
each hinge. Do not use CA accelerator. After the CA has
fully cured, test the hinges by pulling on the aileron.
7. Repeat steps 1- 6 for the left wing panel.
8. Follow the same procedure for installing the ailerons
on the top wing panels. Install the ailerons to the top wing
panel with three hinges in each aileron.
Join the Wing
Before installing the aileron servos you must make a
decision on whether you will use two or four servos to drive
the four ailerons. A separate servo bay is located in each
wing panel for a four-servo installation. Should you choose
to use the two-servo installation an aileron connecting rod
goes between the top and bottom ailerons. The use of a
connecting rod between the top and bottom wing is "scale"
for a Stearman. If you choose to use the four servos you will
not be able to use the aileron connecting rod due to the
differential that is created between the top and bottom
aileron. You will not have any noticeable performance
difference with either option. If you do use two servos you
will need to make sure they are at least 54 oz-in servos.
Using four servos allows you to use less powerful servos
(and most likely less expensive servos) but they will need to
be at least 30 oz-in servos.
The following steps are required whether you install two or
four servos.
1. Cut away the covering from the servo bay in the bottom
of the right bottom wing panel. Turn the wing over and cut the
covering from the hole in the top of the wing at the wing root.
7
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