4
BOOMERANG 40. Instruction Manual.
Epoxy attach.
4. Once the epoxy has cured, trial fit
both wing halves together. The centre ribs
shouldfittogetherflushwithnogaps.Ifgapsdo
exist, use 220 grit sandpaper and sand down
the high spots on the root ribs and the wing
joineruntilaproperfitisachieved.Thecorrect
amountofdihedralisready-builtintothewings.
With one wing half laid flat on the table, the
other wing tip should be off the table surface.
If this needs to be adjusted, you may do so by
sandingsmallamounts fromthecentreribs or
dihedral brace.
5. Carefullyapplymaskingtapearound
thetopandbottomedge of theroot rib ofeach
winghalftoprotectthemfromdamagecaused
byepoxy.
6. Mixagenerousamountof30minute
epoxy. Coat the exposed half of the dihedral
brace, and the remaining wing joiner box and
both root ribs with epoxy. Slide the two wing
halvestogetherandcarefullyalignthematthe
leading and trailing edges. Wipe away any
excess epoxy using paper towels. Use mask-
ingtapewrappedaroundthecentresectionto
hold the halves in place until the epoxy cures.
1. Installtherubber grommetsand brass
colletsontothe aileron servo. Testfit theservo
into the aileron servo mount.
Because the size of servos differ, you
may need to adjust the size of the precut
opening in the mount. The notch in the sides
of the mount allow the servo lead to pass
through.
2. Remove the aileron servo. Place the
mountonto thewing,aligning thecutout inthe
mount with the cutout in the wing. The two
notches in the mount should face the leading
edge of the wing.
3. While holding the servo mount firmly
in place, trace around it using a pen.
4. Remove the mount, and using a mod-
elingknife, carefully removethe covering from
inside the outline you drew.
5. Using 6 Minute Epoxy, glue the servo
mount into place. Remove any excess epoxy
usinga papertowel andrubbing alcohol. Use
piecesofmaskingtape to holdthetrayinplace
until the epoxy fully cures.
INSTALLING THEAILERON SERVO MOUNT.
Servo tray.
3) Peel off the backing from the self adhe-
sivecoveringstrip.Applythestriptothecentre
section of the wing starting from the bottom
trailingedge.Wrapthestripallthewayaround
the wing until it meets the trailing edge again.
Trim off any excess strip.
8. Peel off the backing from the self
adhesive covering strip. Apply the strip to the
centre section of the wing starting from the
bottomtrailingedge.Wrapthestripalltheway
aroundthewinguntilit meets thetrailing edge
again. Trim off any excess strip.
7. When the epoxy has cured, carefully
remove the masking tape from the wing.
