Great Planes RV-4 Park Flyer Kit - GPMA0010 - Manual (Page 13)

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20. Align the two short embossed lines on the wing tip
with the top main spar. Spot glue the wing tip to the end of
the wing spar with a small drop of thin CA.
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21. From a leftover 1/8" x 1/4" [3.2 x 6.4mm] balsa
stick, cut a wing tip brace 2-1/4" [57mm] long. Bevel the
ends of the brace to fit the wing tip as shown in the photo
above. A straightedge can be used along the top spar to
hold the wing tip even and level with the top of the wing.
When satisfied with the fit, glue the brace in place. Hint:
First spot glue the brace to the W2 rib, then glue the end of
the brace to the wing tip while using the straightedge to hold
the wing tip level.
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22. Glue the rear of the wing tip to the top edge of rib
W2. Make two more wing tip braces and glue them in place
where shown on the plan.
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23. Glue the front of the wing tip to the top edge of rib
W2. Make one more wing tip brace and glue it in place
where shown on the plan.
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24. Use a sanding block and 150-grit sandpaper to blend
the wing tip, wing tip braces and the W2 rib together smoothly.
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25. Return to step 1 and build the right wing panel.
Remember! Build it over the right wing plan.
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1. Draw a centerline on the laser-cut 1/16" [1.6mm] ply
dihedral brace.
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2. Using a razor saw and hobby knife, carefully cut a
1/16" [1.6mm] slot in root rib W1, just behind the main spar,
on both wing panels. Test fit the dihedral brace in each slot.
Join the Wing Panels
13