Great Planes SU-31 Sukhoi EP 3D ARF - GPMA1547 User Manual

Page 18

gET THE MOdEL REAdY TO FLY

Check the Control directions

1. Turn on the transmitter and receiver and center the

trims. If necessary, remove the servo arms from the servos
and reposition them so they are centered. Reinstall the
screws that hold on the servo arms.

2. With the transmitter and receiver still on, check all the

control surfaces to see if they are centered. If necessary, adjust
the clevises on the pushrods to center the control surfaces.

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.

4. After checking the control directions and centering

the control surfaces, it is recommended to apply a drop of
thin CA glue to each carbon pushrod where it meets the
adjustable clevis. This will ensure that the pushrods will not
change position in the clevises during flight.

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 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.

These are the recommended control surface throws:

LOW RATE

ELEVATOR:

3/8" [9.5mm], 7° up

3/8" [9.5mm], 7° down

RUDDER:

1-1/4" [32mm], 16° left

1-1/4" [32mm], 16° right

AILERONS:

1/2" [13mm], 9° up

1/2" [13mm], 9° down

HIGH RATE

ELEVATOR:

1/2" [13mm], 10° up

1/2" [13mm], 10° down

RUDDER:

2" [51mm], 26° left

2" [51mm], 26° right

AILERONS:

3/4" [19mm], 14° up

3/4" [19mm], 14° down

3D RATE

ELEVATOR:

2-1/4" [57mm], 48° up

2-1/4" [57mm], 48° down

RUDDER:

3-1/4" [83mm], 45° left

3-1/4" [83mm], 45° right

AILERONS:

1-5/8" [41mm], 32° up

1-5/8" [41mm], 32° down