32
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, fi rst adjust the location of the
pushrod on the servo arm or on the elevator horn. Once
the throws are close, program the servo end points in
your transmitter to fi ne tune the throws 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.
IMPORTANT!
With the throws set, now is a good
time to set the failsafe on the transmitter. The failsafe
may save your plane if the signal is lost.
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.
At this stage the model should be in ready-to-fl y
condition with
all
of the components in place including
the complete radio system, engine, muffl er, propeller,
spinner and pilot. The fuel tank should be empty. If
electric, the motor battery installed, but not connected
to the ESC.
6-3/8"
[162mm]
❏
1. If using a Great Planes C.G. Machine, set the
rulers to 6-3/8" [162mm]. If not using a C.G. Machine,
use a fi ne-point felt tip pen to mark lines on the top of
the wing on both sides of the fuselage 6-3/8" [162mm]
back from the leading edge. Apply narrow (1/16" [2mm])
strips of tape over the lines so you will be able to feel
them when lifting the model with your fi ngers.
