Set the control throws – Great Planes SPAD XIII EP WWI Parkflyer ARF - GPMA1143 User Manual
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19
FULL THROTTLE
RUDDER MOVES RIGHT
ELEVATOR MOVES UP
RIGHT AILERON MOVES UP
LEFT AILERON MOVES DOWN
4-CHANNEL RADIO SETUP
(STANDARD MODE 2)
❏
4. 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
To ensure a successful fi rst fl ight, fl y your SPAD XIII set up only
according to the C.G. and control surface throws specifi ed in
this manual. The throws and C.G. are not arbitrary, but have
been determined through extensive testing and accurate
record-keeping. This provides you with the best chance for
success and enjoyable fi rst fl ights that should be surprise-
free. Additionally, the throws and C.G. shown are true, real
data which will allow the model to perform in the manner in
which it was intended when fl own by a pilot of the skill level
for which it was intended. DO NOT OVERLOOK THESE
IMPORTANT PROCEDURES. A model that is not properly
setup may be unstable and possibly unfl yable.
The building steps earlier in this manual that show the
mechanical setup for the elevator, rudder, and aileron
linkages show you the best way to confi gure the linkages to
achieve the proper throws using Futaba micro servos and a
Futaba radio system. If you are using a different radio system
or you cannot achieve the proper control throws using our
suggested linkage confi guration, you may have to install the
pushrods in different holes on the servo arms or the control
horns. Keep in mind that changing the throws mechanically
is preferred to changing them using your radio’s end-point
adjustment. End points can be used to “fi ne-tune” to get the
proper throws.
Use a Great Planes AccuThrow gauge 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 HIGH
rate setting.
These are the recommended control surface throws:
High Rate
Low Rate
ELEVATOR: 9/16" [14mm] up
3/8" [10mm] up
9/16" [14mm] down
3/8" [10mm] down
RUDDER:
7/8" [22mm] left
3/4" [19mm] left
7/8" [22mm] right
3/4" [19mm] right
AILERONS: 7/8" [22mm] up
1/2" [13mm] up
7/8" [22mm] down
1/2" [13mm] down
NOTE: The throws are measured at the widest part of
the control surfaces.
If you wish to set the control throws using angles instead of
linear measurements, you may cut out the paper templates
that we have provided for you in the back of this manual.
These are the recommended control surface throws:
High Rate
Low Rate
ELEVATOR: 18° up
13° up
18° down
13° down
RUDDER:
17° left
13° left
17° right
13° right
AILERONS: 20° up
10° up
20° down
10° down
NOTE: The throws are measured at the widest part of
the control surfaces.