Great Planes Extra 300S 60 Kit - GPMA0236 - Manual (Page 20)

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21. Sand the LE to the airfoil shape shown on the plans.
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22. Using the plans as a reference, cut the servo wire
holes in the top of the wing.
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23. Cut two 6-1/4" long pieces from the 1/4" x 2" x 24"
balsa sheet for the wing tip caps. Cut two more 2-1/4"
long pieces for the root rib caps.
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24. Glue the 6-1/4" long tip caps to the wing tips. Glue
the 2-1/4" long root caps to the root ribs.
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25. Sand the root caps and tip caps to match the shape
of the wing.
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26. Slightly round one end of both of the 1/4" x 2-1/2"
wing dowels.
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27. Test fit the dowels into the wing. When satisfied with
the fit, use 6-minute epoxy to glue the dowels in place.
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1. Remove the fourteen die-cut 3/32" balsa aileron ribs,
labeling each of them as you do so. Cut 2" off the end of a
3/8" x 3/8" x 24" balsa stick to be used for the control horn
doubler in the aileron.
Build the Ailerons
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