Wing Installation - Hobbico Spectrum Assembly Instructions Manual

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Wing Installation

1. Remove the upper fuselage and lower fuselage
pieces from the main fuselage. Set these aside in
a safe location for use later in the assembly of
your model.
2. Locate the three plywood wing mounting plates.
Separate them and sand off any rough edges. Drill a
7/32" [5.5mm] hole at the punch marks on the plates.
3. Glue the three plates together in a stack with
the shortest on the top. Make sure the holes and
front edges are lined up with each other and wipe
off any excess epoxy using a paper towel and
rubbing alcohol. Use clothes pins to clamp the
plates together while the epoxy cures.
4. Install the blind nuts into the holes from the
bottom side of the mounting plate. (The short plate
is on the top.) Gently press the blind nuts into
position with a pliers or vise. Secure the blind nuts
into position with a drop of CA on the flange and
prongs of the nuts. Care must be taken not to get
CA into the threads of the blind nuts.
5. Test fit the wing mounting plate into position. Once
satisfied with the fit, secure it using 6-minute epoxy.
A
6. Place the wing on the fuselage. Measure
from the aft center of the fuselage to one wing tip
and record the distance. Measure from the same
point to the opposite wing tip, and compare it to the
first measurement. If the measurements are not
the same, adjust the wing and re-measure until
they are equal. Place a mark on the wing so it can
be repositioned for the following step.
7. Insert the 4mm x 25mm wing bolts from the
under side of the wing mounting plate. The bolts
should slightly extend above the wing saddle so
they can lightly touch the wing when it is placed in
position. Paint the tips of the bolts with a slow
drying paint. Before the paint dries, place the wing
into the saddle, making sure it is in alignment.
Press the wing against the bolts so the paint transfers
onto the wing, marking the location of the bolts.
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