Feiyue FY31AP Installation & Operation Manual - page 20
Guilin Feiyu Electronic Technology Co., Ltd
Guilin Feiyu Electronic Technology Co., Ltd http://www.feiyudz.cn E-mail:
service@feiyu-tech.com
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improvement in wing attitude. Adjust until you are satisfied with the level of wing
stabilization.
l
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.
l
Alternately, if you find the flight correction is not enough (too low stability), you can increase
gain accordingly.
27. Recording Neutral Value ‘On the Fly’
After the checking for the control surface, adjust the 3 knob switch to a suitable position(advice to
adjust for about half),then you can test the fly now. The test for fly is in order to record the neutral
value ‘on the fly’. This can help you get more accurate autonomous flight attitude control.
It is best to carry out this procedure during minimal wind conditions.
Step 1: Set up your aircraft and ensure correct FY31AP
orientation, position & level. Ensure the Mode 3 (auto
stabilization) Elevator, Aileron and Rudder movements are in the
correct direction.
Step 2: Move Dip Switch No. 4 to ‘ON’ position.
Step 3: ON your transmitter and zero all your trims. Confirm there are no deflection to the Aileron,
Elevator and Rudder surfaces by adjusting your servo links.
Step 4: Power ON the aircraft with the FY31AP in Manual Mode.
Step 5: Fly your aircraft to a safe height (still in Manual mode) and fly in a Level and straight line.
Step 6: While in this Neutral Value, activate Mode 2 (Auto Stabilization Mode) for at least 2
seconds. Since Dip Switch No. 4 is ON, the FY31AP will now record your Neutral Value. After 2
seconds, switch back to manual mode or keep in the Mode 3 (Auto Stabilization Mode)and land
your aircraft.
(Note: Do not switch from Mode 1( Deactivated Mode) to Mode 2(Stabilized mode)for the second
time, because when the DIP Switch NO.4 is in the ON position, the FY-31AP will record the neutral
point each time you switch the mode from Mode 1 to Mode 2.)
Step 7: After landing, move Dip Switch No. 4 back to OFF position.
Procedure is complete.
IMPORTANT NOTE
: As long as there are no major changes in your aircraft
hardware (e.g. no shifting of Centre of gravity, ”CoG”) your Neutral Value will not change. If
there are major changes in hardware or your CoG have shifted, it is best you repeat this Neutral
Value recording procedure.
Note: if you have data radio, you also can use the GCS software to record the neutral
value ’on the fly’ more easily! The detail please refer the manual of GCS software operate
manual.