FeiYu Tech FY-91Q - Manual (Page 22)

GuiLin FeiYu Electronic Technology Co., Ltd
GuiLin FeiYu Electronic Technology Co., Ltd www.feiyudz.cn E-mail: [email protected]
Page 21
(minimum 5 required).
c) Upon power up, the FY-91Q will automatically search for GPS
satellites.
d) Upon detecting 5 satellites, the red LED will begin flashing twice
continuously, indicating GPS Home Position has been locked.
e) You can safely fly the FY-91Q system without GPS locking ‘home’
position (red LED flashing twice). However, both Hover Hold and
RTH autonomous flight cannot function.
f) Without GPS lock, the FY-91Q can only hold altitude if Hover Hold is
activated. Position hold cannot be activated, and therefore the aircraft
will drift randomly.
g) If during the RTH function GPS lock is lost, the aircraft will stop
moving and begin to drift randomly. However, it can still fly while
maintaining altitude.
Hover Hold and Automatic Return to Home Testing
1. After carrying out the above Setting Up procedures and confirmation of 5
satellite detection (red LED double flashing continuously) you can proceed
with Hover Hold and RTH testing.
2. We recommend carrying out the first autonomous flight tests in light winds
(wind speed less than 3 mph).
3. After successfully engaging Hover Hold (at least 2 seconds), you may
proceed to test the RTH function.
4. Move the aircraft to any location (not too far in the first few tests) in
Stabilized Mode, when you switch to RTH Mode, the aircraft should
automatically fly back to Home position while maintaining current altitude.
5. Upon reaching the Home position, the aircraft will automatically activate
Hover Hold (maintaining position and altitude).
6. Again, note that FY-91Q must have successfully recorded your hover
benchmark (setting Aircraft Neutral Gain) to execute RTH. Failure which, the
RTH function will not work.