Top Flite TOPA0160 - Manual (Page 61)

using a spinner weight or gluing lead weights to the
firewall. You may add tail weight by sticking on Great
Planes (GPMQ4485) stick-on lead weights on the
bottom of the fuselage under the tail. Later, if the
balance proves to be OK, you can open the fuse
bottom and glue these in permanently. Never stick
weights to the cowl because it is not designed to
support weight.
Our prototype model required 7-1/2 ounces of lead
on the firewall. Do not trust the adhesive on the stick
on lead weight. Use epoxy or screws to hold the
weight in place.
Warning: Some modelers who built the Top Flite
Bonanza reported that the model was very pitch
sensitive when it was powered with an engine in the
upper end of the recommended size range. If you are
using a large engine, balance the T-34B at the forward
end (nose heavy) of the recommended CG range for
the first flights.You can then adjust the CG further aft as
you become comfortable with the model. Do not
exceed the recommended control throws.
BALANCE THE AIRPLANE LATERALLY
❏
1. Mount your wing.
❏
2. With the wing level, carefully lift the model by
the engine propeller shaft and the fin or tail cone
(this may require two people). Do this several times.
❏
3. If one wing always drops when you lift the
model, that side is heavy. Balance the airplane by
gluing weight inside the other wing tip. An airplane
that has been laterally balanced will track better
in loops and other maneuvers.
INSTALL YOUR RECEIVER, BATTERY PACK AND
RETRACT COMPONENTS
The location of your receiver and battery pack may
be determined by the C.G. On our prototypes we
mounted the battery pack and receiver nearly as far
forward as possible. You may use the mounting
plates provided with this kit or fashion your own
method to secure your battery pack and receiver.
❏
1. Securely glue a die-cut 1/8” [3.2mm] plywood
backplate to the die-cut 1/8” [3.2mm] plywood radio
mounting plate.
❏
2. Secure your battery pack to the mounting plate
with a few rubber bands and 1/4” [6.4mm] thick foam
rubber in between. Test fit the battery pack and
mounting plate in the front of the fuse as shown on
the plan. Securely glue the backplate to the fuse
side doubler. Note: You may need to remove the top
of former F2 to install the mounting plates.
❏
3. Install your receiver the same way. Route your
receiver antenna through the antenna tube. Note: If
in the future you have to remove, then reinstall your
receiver or battery pack, first hook the rubber bands
to the tabs on the mounting plate. Next, stretch the
rubber bands and slide your battery pack and
receiver underneath.
❏
4. Cut the two 1/8” x 1” [3.2 x 25.4mm] dowels to
a length of 3/4” [19.1mm]. Glue the dowels into the
holes you drilled in the bottom of former F6. Cut the
aft edges of the servo trays so they are even with the
servo rails. Temporarily strap the air tank in place
using two rubber bands.
Note: There is also room behind the front instrument
panel to install the air tank. It can be held in position
with silicone adhesive or rubber bands. Refer to the
next photo.
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