Balance The Model Laterally; Balance The Model (C.g.) - Tower Hobbies RYAN STA Instruction Manual

LESS
THROW
MORE
THROW
Pushrod Farther Out
MORE THROW
2. If needed, adjust the location of the pushrod on the
servo arm or on the control horn fi rst. Then, use the endpoint
adjustment in your transmitter to fi ne tune the throws.
3. Measure and set the low rate throws using the dual rates
on the transmitter. Next, measure and set 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.
These are the recommended control surface throws:
HIGH RATE
Up Down
5/8"
[16 mm] [16 mm]
12°
Right
1-1/8" 1-1/8"
[28 mm] [28 mm]
20°
Up Down
15/16" 15/16"
[24 mm] [24 mm]
31°
IMPORTANT: With the propeller removed and the control
throws set, set the fail safe on the transmitter. We recommend
checking the fail safe by switching off the transmitter with
the motor battery connected to the ESC. The motor must
not come on when the transmitter is switched off. Unplug
the motor battery from the ESC.
Pushrod Farther Out
Pushrod Closer In
Pushrod Closer In
LESS THROW
LOW RATE
Up
5/8" 7/16"
[11mm] [11mm]
12° 8°
Left Right
7/8"
[22 mm] [ 22 mm]
20° 16°
Up
5/8"
[16 mm] [16 mm]
31° 20°
4. If the RimFire 32 is installed, use a 5/16" [8mm] drill bit
to enlarge the center hole in the spinner backplate. Slide
the spinner back plate onto the prop drive, followed by
the propeller and secure them with the 8mm prop washer
supplied with the Ryan and the prop nut. Attach the spinner
cone to the spinner back plate with the two 2.5 x 10mm sheet
metal screws. Note: The propeller opening in the spinner
cone may need to be enlarged slightly so that the cone does
not rub on the propeller.
5. If installing a pilot (not included) now is the time to install it.

Balance the Model Laterally

1. With the wing level, have an assistant help you lift the
model by the propeller shaft and the bottom of the fuse under
the TE of the fi n. Do this several times.
2. If one wing always drops when you lift the model, it
means that side is heavy. Balance the airplane by adding
weight to the other wing tip. An airplane that has been
laterally balanced will track better in loops and other
maneuvers.

Balance the Model (C.G.)

Down
DO NOT OVERLOOK THIS IMPORTANT PROCEDURE.
7/16"
A model that is not properly balanced may be unstable and
possibly unfl yable.
8°
Left
7/8"
16°
Down
5/8"
20°
1. Mark the C.G location on the top of the wing, between
2-3/8" [60mm] to 2-5/8" [67mm] from the wing's leading edge.
20
60 mm 2-3/8"
67mm 2-5/8"