31
❏
1. Use a box or something similar to prop up the
bottom of the fuselage so the horizontal stabilizer
and wing will be level. Hold a ruler vertically on
your workbench against the widest part (front to
back) of the trailing edge of the elevator. Note the
measurement on the ruler.
❏
2. Measure the high rate elevator throw fi rst. Move
the elevator up with your transmitter and move the
ruler forward so it will remain contacting the trailing
edge. The distance the elevator moves up from center
is the “up” elevator throw. Measure the down elevator
throw the same way.
The pushrod farther out
means More Throw
The pushrod closer in
means Less Throw
The pushrod farther out
means Less Throw
The pushrod closer in
means More Throw
At the Servos
At the Control Surfaces
❏
3. If necessary, adjust the location of the pushrod
on the servo arm or on the elevator horn, or program
the ATVs in your transmitter to increase or decrease
the throw according to the measurements in the
control throws chart.
❏
4. Measure and set the low rate elevator throws
and the high and low rate throws for the rest of the
control surfaces the same way.
If your radio does not have dual rates, we recommend
setting the throws at the high rate settings.
NOTE: The throws are measured at the widest part
of the elevators, rudder and ailerons.
These are the recommended
control surface throws:
ELEV
A
T
OR
HIGH RATE
LOW RATE
3/4"
[19.1mm]
12°
Up
3/4"
[19.1mm]
12°
Down
1/2"
[12.7mm]
8°
Up
1/2"
[12.7mm]
8°
Down
3/4"
[19.1mm]
15°
Up
3/4"
[19.1mm]
15°
Down
1/2"
[12.7mm]
10°
Up
1/2"
[12.7mm]
10°
Down
2-3/8"
[60mm]
34°
Down
1-7/8"
[47mm]
22°
Right
1-7/8"
[47mm]
22°
Left
1-3/8"
[35mm]
16°
Right
1-3/8"
[35mm]
16°
Left
R
UDDER
AILER
ONS
FLAPS
Once the throws are set, apply a drop of threadlocker
to the threads on the pushrod and tighten the nuts
against the clevises.
BALANCE THE MODEL (C.G.)
More than any other factor, the C.G. (center of
gravity/balance point) can have the greatest effect
on how a model fl ies and could determine whether
or not your fi rst fl ight will be successful. If you
value your model and wish to enjoy it for many
fl ights, DO NOT OVERLOOK THIS IMPORTANT
PROCEDURE. A model that is not properly
balanced may be unstable and possibly unfl yable.
