Top Flite TOPA0305 Part 2 - Manual (Page 29)

JOIN THE CONTROL SURFACES
(HINGING)
These instructions mention the V-tail which uses
two torque rods instead of a single joiner wire as
used on the straight-tail. If you're building the
straight tail, follow these instructions except where
the torque rods are mentioned.
AWAY FROM THE SLOT
1. Start with the stab and elevators. Remove a
small strip of covering from the hinge slots. For the
V-tail, remove a small strip of covering where the
plastic bearing tubes contact the TE.
ASSEMBLE, THEN APPLY 6 DROPS
OF THIN CA TO CENTER
OF HINGE, ON BOTH SIDES
_ _ I _ _
THE CA WICKS
ALONG THE "TUNNELS"
TO THE ENTIRE
HINGE SURFACE
Q2. Drill a 3/32" hole 1/2" deep in the center of the
hinge slots on the stab and elevators. A high speed
Dremel
Tool@ with a cutting burr works best for this,
but you can use a drill or a sharpened brass tube
instead.
3. If you are building the V-tail, use coarse
sandpaper to roughen the part of the torque rods
that will be inserted into the ruddervators and the
plastic bearing tubes.
If you are building the
straight-tail, roughen the joiner wire. Use a
toothpick to dab a small amount of petroleum jelly
on the ends of the V-tail plastic bearing tubes to
keep epoxy out.
4. Fit the hinges in only the stab or elevators
(without glue). Fill the torque rod holes in the
elevators with 30-minute epoxy. Install the torque
rods in the elevators. Wipe away excess epoxy
with a cloth dampened with alcohol.
5. Join the elevators to the stab with the hinges.
If necessary, insert a pin in the center of the hinges
to keep them centered in the elevator and stab.
Make sure there is approximately a 1/64" gap
between the elevators and the stab
so you do not
glue them together.
6. Cut a paper towel into 2" squares. Add six
drops of thin CA to the center of the hinges on
both the top and bottom. Use the paper towel
squares to absorb excess CA from the hinge gap
before it cures.
Do not use CA accelerator on any of the hinges
and do not glue the hinges with anything but
thin
CA. Do not attempt to glue one half of the
hinge at a time. The hinges will not be properly
secured and could come out while the model is
in flight.
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65
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Glue the bearing tubes to the TE with a dab of
30-minute epoxy.
8 . Use the same hinging method to join the
rudder to the fin (if building the straight tail) and the
ailerons to the wing.
9. Thoroughly roughen the flap hinges with
coarse sandpaper. Mix enough 30-minute epoxy to
do one flap at a time. Use a piece of leftover wire to
thoroughly coat the holes in one of the flaps and
the holes in the wing with the epoxy. Coat one side
of the flap hinges with epoxy and insert them into
the wing. Coat the other side of the hinges with
epoxy and join the flap. Wipe away excess epoxy
before it cures.
10. Position the flap and the hinges so the
flap is centered and fits the wing. Tape the flap in
place until the epoxy is fully cured.
11. Join the other flap to the wing the same way.
12. Reinstall any pushrods you may have
disconnected while covering, and mount the control
horns to the ailerons.
GLUE IN THE WINDOWS
1. Use a special canopy glue such as J & Z
Products Z RC/56 (JOZR5007) to glue the windows
to the cabin top. This kind of glue is formulated for
plastic and dries clear. Wipe away excess glue with
a tissue dampened with water before it dries. Use
masking tape to hold the windows to the inside of
the cabin top until the glue is dry. If you decide to
use CA, use medium CA (not thin). Use it
sparingly and do not use accelerator.