Top Flite TOPA0120 - Manual (Page 21)

❑ ❑ 12. Cut the 5/8" X 5/8" X 6" balsa stick
into six equal blocks. Fit and glue these Flap
Hinge Blocks in place where shown on the wing
plan.
❑ ❑ 13 Mark the locations of the hinge blocks
on the TE to help you find them later.
❑ ❑ 14. Decide how you want to route the flap
servo extension wires. You will need to go through
or around the wheel well. Add passageways for
the extension in W-3 and W-4 if needed.
NOTE: Actual flap construction will
begin on page 27.
Repeat the previous wing sections (starting on
page 16) to build the other wing panel. Use the
other half of the wing plan, and remember to
build a right and a left wing panel.
JOIN THE WING PANELS
❑ 1. Trim the ends of the spars and LE’s of both
panels even with rib W-12. Excess overhang will
affect the dihedral angle.
❑ 2. Cut away the portion of rib W-1 around the
spars as shown in the photo. This will allow the
dihedral braces to pass through.
❑ 3. Test fit the die-cut 1/16” plywood Dihedral
Braces into each wing half. Make sure the Brace
centerline can go all the way to the wing centerline.
Trim the ends of the Braces slightly, if required.
❑ 4. Trim the jig tabs off all of the wing ribs
except W-1 and W-12. Use a T-bar to blend the
airfoil where the jig tabs were removed.
❑ 5. Drill two 1/4” holes in the shaped 1/4”
plywood Wing Bolt Plate at the locations shown
on the wing plan.
❑ 6. Test fit the 1/4” plywood Wing Bolt Plate
into each wing panel. Make adjustments, if
necessary, until the Wing Bolt Plate fits well.
❑ 7. Assemble the two wing halves, the two
Dihedral Braces, and the Wing Bolt Plate together.
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