Great Planes Reactor 3D EP ARF - GPMA1540 - Manual (Page 19)

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3. Make certain that the control surfaces and the throttle
respond in the correct direction as shown in the diagram. If
any of the controls respond in the wrong direction, use the
servo reversing in the transmitter to reverse the servos
connected to those controls. Be certain the control surfaces
have remained centered. Adjust if necessary.
Use a Great Planes AccuThrow (or a ruler) to accurately
measure and set the control throw of each control surface as
indicated in the chart that follows. If your radio does not have
dual rates, we recommend setting the throws for your first
few flights at the low rate setting.
Note: The throws are measured at the widest part of the
elevators, rudder and ailerons.
At this stage the model should be in ready-to-fly condition
with all of the systems in place including the motor, landing
gear, battery pack, and the radio system.
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1. Use a felt-tip pen or 1/8" [3mm]-wide tape to accurately
mark the C.G. on the bottom of the wing on both sides of the
fuselage. The C.G. is located 3-3/8" [86mm] back from the
LE of the wing at the fuse.
More than any other factor, the C.G. (balance point) can
have the greatest effect on how a model flies, and may
determine whether or not your first flight will be
successful. If you value this model and wish to enjoy it for
many flights, DO NOT OVERLOOK THIS IMPORTANT
PROCEDURE. A model that is not properly balanced will
be unstable and possibly unflyable.
Balance the Model (C.G.)
IMPORTANT: The Reactor 3D EP ARF has been
extensively flown and tested to arrive at the throws at
which it flies best. Flying your model at these throws will
provide you with the greatest chance for successful first
flights. If, after you have become accustomed to the way
the Reactor 3D EP ARF flies, you would like to change the
throws to suit your taste, that is fine. However, too much
control throw could make the model difficult to control, so
remember, “more is not always better.”
These are the recommended control surface throws:
High Rate Low Rate
ELEVATOR: 7/8" [22mm] up 9/16" [14mm] up
7/8" [22mm] down 9/16" [14mm] down
RUDDER: 2-3/8" [60mm] right 1-3/16" [30mm] right
2-3/8" [60mm] left 1-3/16" [30mm] left
AILERONS: 1-3/8" [35mm] up 3/4" [19mm] up
1-3/8" [35mm] down 3/4" [19mm] down
3D RATES
3D ELEVATOR: 2" [51mm] up
2" [51mm] down
3D RUDDER: 3-1/2" [89mm] right
3-1/2" [89mm] left
3D AILERONS: 2-5/8" [67mm] up
2-5/8" [67mm] down
Set the Control Throws
FULL THROTTLE
RUDDER MOVES RIGHT
LEFT AILERON MOVES DOWN
RIGHT AILERON MOVES UP
ELEVATOR MOVES UP
4-CHANNEL TRANSMITTER
(STANDARD MODE 2)
4-CHANNEL RADIO SETUP
TRANSMITTER 4-CHANNEL
TRANSMITTER 4-CHANNEL
TRANSMITTER 4-CHANNEL
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