Top Flite TOPA0410 - Manual (Page 17)

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❏ ❏ 9. Use a straightedge to draw lines on the LE and TE,
from the bottom edge of rib T-6 to the bottom edge of rib
T-7. Use a razor plane and sanding bar to taper the LE
and TE.
❏ ❏ 10. Cut two 4-3/4" [120.65mm] long aileron hatch
rails from a 1/4" x 3/8" x 18" basswood stick. Use 6-minute
epoxy to glue the rails in the notches of ribs T-4 and T-5.
❏ ❏ 11. From the remaining 1/2" x 1/2" balsa stick, cut
and glue 3/4" [19mm] long hinge blocks, centered on the
trailing edge of the wing tip panel at the locations shown
on the wing plan.
HOW TO MAKE SERVO LEAD TUBES
When the aileron servos are mounted near the wing
tips, it can be difficult to route the servo wires through
the ribs to the wing root. An easy solution is to make
servo wire tubes.
❏ ❏ A. Cut a piece of paper 6" wide and slightly longer
than the length needed to reach from the aileron servo
bay to the wing root.
❏ ❏ B. Roll the paper into a tube slightly smaller than
the holes in the wing ribs. Use a couple of pieces of
tape to hold the tube together.
❏ ❏ C. Insert the tube into the holes in the ribs and tack
glue the tube to the ribs with CA.
❏ 12. Remove the wing tip panel from your building board.
Return to step 1 of the BUILD THE WING TIP PANELS
and build the other wing tip panel. Be sure to build a left
and right wing tip panel.
JOIN THE WING PANELS
❏ 1. Sand the center section LE to the approximate shape
of the wing tip panels LE. Avoid altering the shape of the
ribs during this process. A piece of masking tape on the
edge of each rib can be used to protect them. The final
shaping of the LE will be done after the wing is joined.
❏ ❏ 2. Trim off all the wing tip panel jig tabs, except on
ribs T-7.
❏ ❏ 3. Draw a line on rib T-1 connecting the forward and
aft edges of the spars. Using a sharp hobby knife, remove
the wood from between the lines.