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First Flight Test And Sensitivity Adjustment
1.
At this stage, your aircraft should already have automated surface control with the
right direction when in Auto Stabilized Mode and the Neutral Value is already recorded.
2. Now you need to fine tune your FY31AP stability gain via flight tests. For the first flight it
is recommended that the gains not be set too high. To avoid excessive oscillation (flight
overcorrection) put the gyro gain at mid point.
3. Take off in Manual Mode. After achieving safe height, activate Auto Stabilized Mode.
4. Aileron Gain: If you see oscillation of the wings, this indicates the Aileron gain is set too
high. Switch back to Mode 1 and land the airplane.
5. Reduce the sensitivity (move dial toward centre position) and fly again. You should see
improvement in wing attitude. Adjust until level of wing stabilization is acceptable.
6. Elevator & Rudder Gain: Too much Elevator gain will show the tail moving up and
down (nodding). Too much Rudder gain will show tail wagging. Reduce gain until this
flight over corrections disappears.
7. Alternately, if you find the flight correction is not enough (too low stability), you can
increase gain accordingly.
Testing Autopilot Return To Launch (RTL)
a) After setting up stabilized mode, test your aircraft RTL autonomous function. Also called
Return to Home, this function will bring your aircraft back to the home point
automatically.
b) Fly the plane in stabilized mode, and keep the throttle at a good cruising speed and fly to
a distance of 200 meters.
c) Switch the SW 2 to the Autopilot mode 2 (RTL). The plane should immediately return to
the home point using its ailerons.
d) On reaching 'Home' the plane will auto circle the home point.
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