HARMON ROCKET III.
Instruction Manual.
7
Expoxy.
2) Remove the brace when satisfied with
its fit ineach wing half. Coat both sides of one
half of the dihedral brace with 30 minute epoxy.
Next, pour some epoxy into the dihedral box in
one wing panel. Make sure you cover the top
and bottom as well as the sides of the dihedral
brace. Use enough epoxy to fill any gaps.
1) Test fit the wing tube into each wing half.
The brace should slide in easily up to the
centreline that you drew.If not, use 220 grit
sandpaper with a sanding block and sand
down the edges and ends of the brace until it
fits properly.
Masking tape.
WING ASSEMBLY.
NOTE: We highly recommend using 30
minute epoxy as it is stronger and provides
more working time, allowing the builder to
properly align the parts. Using fast cure epoxy
when joining the wing halves could result in the
glue drying before the wing halves are aligned
properly which may result in failure of the wing
centre section during flight.
3) Peel off the backing from the self adhe-
sive covering strip. Apply the strip to the centre
section of the wing starting from the bottom
trailing edge. Wrap the strip all the way around
the wing until it meets the trailing edge again.
Trim off any excess strip.
Carefully slide the two wing halves together
and firmly press them together, allowing the
excess epoxy to run out. There should not be
any gap in the wing halves. Use rubbing
alcohol and a paper tower to clean up any
excess epoxy.
Apply masking tape at the wing join to hold
the wing halves together securely.
Centre line.
Masking tape.
