Set The Control Throws - GREAT PLANES U-Can-Do SF Instruction Manual

4-CHANNEL RADIO SET UP
RUDDER
MOVES
RIGHT
FULL
THROTTLE
❏
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.

Set the Control Throws

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 at the
low rate setting.
NOTE: The throws are measured at the widest part of the
elevators, rudder and ailerons.
(STANDARD MODE 2)
RIGHT AILERON
MOVES UP
LEFT AILERON
MOVES DOWN
ELEVATOR
MOVES DOWN
25
These are the recommended control surface throws:
LOW
3/4"
ELEVATOR
[19 mm]
Up & Down
11°
1-1/8"
RUDDER
[29mm]
Right & Left
10°
5/8"
AILERONS
[16 mm]
Up & Down
8°
IMPORTANT: The U-Can-Do SF has been extensively
fl own and tested to arrive at the throws at which it fl ies best.
Flying your model at these throws will provide you with the
greatest chance for successful fi rst fl ights. If, after you have
become accustomed to the way the U-Can-Do SF fl ies, you
would like to change the throws to suit your taste, that is fi ne.
However, too much control throw could make the model
diffi cult to control, so remember, "more is not always better."
At the Servos
The pushrod farther out
means More Throw
At the Control Surfaces
The pushrod farther out
means Less Throw
❏
1. 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.
HIGH 3D
1" 2-5/16"
[25mm] [59mm]
15° 36°
2-1/2" 4"
[64mm] [102 mm]
23° 39°
15/16" 1-1/2"
[24mm] [ 38mm]
12° 20°
The pushrod closer in
means Less Throw
The pushrod closer in
means More Throw