User manual

7. Verify control directions, adjust centering and servo throws
a. Power on. Use the Gear switch to turn the stabilizer OFF (green ON, red ON).4
b. If you wish to change the switch direction, reverse the channel in the transmitter. Make a
note of how it works so you can switch stabilization OFF quickly if necessary!
c. Adjust transmitter reversing so that all servos work in the correct direction in response
to the Sticks. Note that where elevon, V-tail or flaperon mixing is involved it may be Only
used if the model has a separate vertical rudder. It is necessary to interchange the two
servo connectors and/or reverse controls to get the
correct action.
d. With trims in neutral, adjust servo arms and linkages to align your control surfaces. Use
only a minimum of subtrim on the transmitter for fine tuning. Servo arms should be at
right angles to push rods to ensure equal movement in both directions.
e. With end points (limits) and control rates at 100%, check that control surface throws are
at the recommended maximums for the model and adjust linkages if necessary. Note that
adjusting throws in the transmitter will not affect stabilization, so throws need to be set
mechanically to give the stabilizer enough control; the exact amount is not critical, as
gain will later be used to adjust stabilization.
8. Test stabilization response and direction
Turn the three onboard gain adjustment pots fully clockwise (maximum). Switch the
stabilizer ON using the Gear switch (lights: green ON, red OFF). Sharply move the plane in
each of the three flight axes and check that the control surfaces move vigorously to oppose
the disturbance. See diagram below. The diagram shows how the surfaces should respond
to movement of the model about each axis. When the model is rolled sharply to the right,
the right aileron should go down and the left aileron up to resist the displacement.