Top Flite Sierra 40 Trainer Kit - Manual (Page 19)

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21. The 17/32" x 1-1/2" x 30" tapered
balsa aileron stock fits against the trailing
edge stock with its lower surface flat on the
table. Glue the aileron stock to the trailing
edge of the wing. (See the photo on the
previous page.)
22. Trim the tip end of the aileron stock
flush with the end of the wing.
to the wing trailing edge at the tip as shown on the
RIGHT WING PANEL drawing. (This is done to the
right and left wing.)
26. Trim and sand the aileron stock flush with
the tip of the wing.
it to final shape. HINT: Put masking tape over the
surrounding structure when sanding items such as
the wing tips to protect areas you don't want sanded.
REPEAT STEPS 5-29 OVER THE
RIGHT WING PANEL PLANS TO
BUILD THE RIGHT WING.
23. Trim and sand the root end of the
aileron to match the 4-degree angle of the TE
and spars.
SKIP TO STEP 27
24. Carefully cut a 1-5/8" long piece off the
MAKE THE WING TIPS
27. Look at the FRONT VIEW of the wing on
the plans to see the proper orientation of the 15/32"
x 1-5/8" x 11-1/4" tapered balsawingtips. Thesmall
end of the taper is positioned at the bottom edge of
the wing.
28. Hold the wing tip up to the end of the wing.
Trace the top of the airfoil onto the wing tip. Saw or
carve the wing tip to the rough shape of the wing,
leaving it slightly oversized.
JOIN THE WING
braces. Put reference marks at the center of the
braces. NOTICE: The dihedral brace with the "lock
bumps" for the aileron servo tray is positioned on the
aft side of the spars (these bumps may be trimmed
off if you are not using ailerons).
17/32" x 1-1/2" x 30" tapered balsa aileron stock .
25. Glue the 1 -5/8" long piece of aileron stock 29. Glue the wing tip to the wing. Block sand
31. Test fit the two wing panels together with the
dihedral braces in place. Check to see that the
spars, leading edges, and trailing edges match up
well. Make adjustments if necessary.
The dihedral angle (the angle at which the wings
are "bent up") is not considered critical. This
angle is established by aligning the spars with