User Manual

Guilin Feiyu Electronic Technology Co., Ltd
Guilin Feiyu Electronic Technology Co., Ltd http://www.feiyudz.cn E-mail: [e-mail] Page 6
l Recording Neutral Value on the Ground
Step 1: Set up your aircraft and ensure correct FY31AP orientation,
position & leveling. 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: Place your aircraft on a table. Arrange the aircraft so that is
perfectly level. Position the aircraft exactly as you wish it to be during
auto stabilization flight (i.e. fuselage and wings perfectly level).
Step 4: ON your transmitter and zero all your trims. Power up the
FY31AP in Mode 1 (Manual Mode). Confirm there are no deflection
to the Aileron, Elevator and Rudder surfaces by adjusting your servo
links. Re-confirm that your aircraft is perfectly level. This is your
aircraft Neutral position.
Step 5: While in Step 4 leveled position, activate Mode 3 (Auto
Stabilization Mode) for at least 2 seconds. Since Dip Switch No. 4 is
ON, the FY31AP will now record the Neutral Point.
Step 6: After 2 seconds, move Dip Switch No. 4 back to OFF position.
The procedure is complete and the system is ready for flight.
Note: when the DIP Swith NO.4 is in the ON position,the FY-31AP will
record the neutral point for each time you switch the mode from Mode
1: Deactivated Mode to Mode 2: Stabilized mode.
25. Checking the control surface & LED before fly
l Before your fly please reconfirm correct control surface movement
direction both in RC control mode(Mode 1) and Stabilized
mode(Mode2).
l Switch the SW1 and SW2, to observe if the blue LED flash in the
correct way in each mode.
l Observe the Red LED to confirm if the GPS have locked, if yes, then
you can take off your plane.
26. Stabilized mode (Mode2)Test And Sensitivity Adjustment
l 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.
l 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.
l Take off in Mode 1 (Manual Mode). After achieving safe height,
activate Mode 3 (Auto Stabilized).
l 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.
l Reduce the sensitivity (move dial towards centre position) and fly
again. You should see 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.
28. Test for the Autopilot mode 2: Auto Return To Launch（RTL）
After test well the stabilized mode, please keep the throttle at the
cruising position，then switch the SW2 to the Autopilot mode 2(RTL),
then the plane should return to the home point, and circle after it reach
the home point. If this test successfully, then you can switch to the
stabilized mode fly the plane to a farther distance to test the RTL again.
29. Test for the Autopilot mode 3: Auto Circling Mode (ACM)
After you complete the test for the RTL mode, you can test the ACM
mode now. Please keep the throttle at the cruising position, switch the
SW2 to the Autopilot mode 3(ACM), then the plane should circle, the
centre of the circle is the current point when you switch.
30. Test for the Model 3: Path Navigation mode
l First, please connect the FY-31AP with the GCS, detail please refer
the FY-31AP Path Navigation & GCS manual.
l Set the waypoints. The most qty is 8 waypoints. Then switch into the
path navigation mode for the waypoint fly.
l Don’t forget to keep the throttle at the cruising position .
l When you switch into the path navigation mode, to observe if the
plane fly according the path you set.
l The default path navigation in FY-31AP is auto repeat .when the
plane fly over the last waypoint it will fly back to the first waypoint.
You can cancel this default value via the GCS software, then the
plane will not fly back, just circle in the last waypoint.
More about the path navigation fly please refer to the manual FY-31AP
Path Navigation & GCS.
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