Top Flite TOPA0400 - Manual (Page 33)

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7. Tape a piece of leftover balsa between the
fuse sides at the aft end of the fuse. Insert a T-pin in
the leftover balsa on the fuse centerline and tie a
string to the pin, which will help with wing alignment.
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8. Place the wing in position on the fuse. Pull
the string (with one end attached to the pin at the
tail) out to a wing tip. Put a piece of tape on the
string to mark the intersection of the string and the
wing tip. Swing the string over to the other wing tip
and check to see if the distances are the same.
Adjust the position of the LE of the wing until the
wing is properly aligned.
NOTE: Make sure the wing is held securely
and cannot shift while you are drilling the
mounting holes.
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9. Drill through the two holes in the wing bolt plate
and through the fuse bolt plate with a 13/64" drill bit
(or #10 drill bit). Remove the wing and tap the holes
in the fuselage bolt plate with a 1/4-20 tap. Wick
thin CA into the threads to harden them. Allow the
CA to cure. Screw the tap back through the hole
again to clean up the threads. Drill the holes in the
wing bolt plate only with a 17/64" drill bit.
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10. Remove the wing dowels from the wing.
Apply 30-minute epoxy in the slots for the wing
dowels. Insert the wing dowels back into the slots.
Wipe off any excess epoxy on the back of F-8C to
prevent gluing the wing to the fuse. Bolt the wing
back on the fuse. Check to be sure the dowels at
the TE of the wing are centered in the slots. Allow
the epoxy to cure before moving the wing.
ATTACH THE STAB AND FIN
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1. For scale accuracy, the fuse sides in the
area of the stab saddle need to be contoured.
Study the cross sections at formers F-10 and F-11
on the plan as well as the photo. Use a razor plane
and sanding bar to obtain the proper shape.
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2. Mark one side of the stab to be the top (the
stab is symmetrical so it doesn’t matter which is the
top). Make a mark 1-5/8" behind the LE at the
center of the stab. Make another mark 1" behind
that one.
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3. Cut a slot in the stab skin between the two
S-1 stab ribs and between the marks. Cut the
same slot in the bottom skin.
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