Feiyue FY31AP Installation & Operation Manual - page 6
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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10. FY-31AP Autonomous Flight Modes
Three autopilot modes are incorporated into the FY-31AP, you can set it via a free receiver
channel and a 3-position switch (named as “SW2”).
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Autopilot mode 1:
Deactivated. The autopilot function is not activated , the flight modes are
determined by the “SW1”.
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Autopilot mode 2: Auto Return To Launch(RTL). When activated in this mode, the FY-31AP
will automatically fly the plane back to the take-off point, while maintaining altitude. Upon
reaching the launch area, the unit will automatically fly the plane in a circle at a default circling
radius of 80 meters.
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Autopilot mode 3: Auto Circling Mode (ACM). When activated in this mode, the plane will
immediately fly in a circle.
The centre of the circle is the point of activation
. The default circle
radius is 80 meters. The aircraft altitude will be automatically maintained throughout the
ACM.
Autopilot stall warning
a. The FY-31AP has some control over the throttle channel. Therefore, when flying in
Autopilot Modes, please ensure you have enough forward movement to prevent stalling.
b. FY-31AP may have a control over the throttle channel, but the throttle control signal is
base on the stick control signal and will auto adjust according the altitude and speed then
output the combined signal. If your forward movement cannot compensate for the
autopilot’s active altitude hold, your aircraft will stall.
c. This is especially important if RTL is part of your RC failsafe. In the event of RC Link lost,
you can set RTL into your Receiver failsafe. However, please DO NOT forget to also set your
throttle failsafe to between 25 % to 50% to ensure the plane does not stall.
d. Never set your throttle failsafe to zero. If you do so, your aircraft will RTL in a continuous
stalled flight which will result in a crash.
Attention: FY-31AP can work in automatic flight mode, though without OSD module. Whether
you have been connected the OSD or not, FY-31AP can work normally. But if the FY-31AP is not
connected GPS module, it will function as purely as a flight stabilizer. The autonomous flight
modes cannot be engaged.
11. Red LED Flashing & Gyroscope Re-set:
If the following conditions occur, the FY-31AP initialization is recommended:
(1) The device has not been used for a long time.
(2) There is a change in environmental temperature of over 30 degrees since last flight.
(3) The Red LED flashes continuously even when the FY-31AP remains stationary about 20s, and
you never activate the motor.
(4) If the Red LED is on solid all the time even when the FY-31AP is stationary, it means the
gyroscope is faulty, and the unit need to be sent back for repair.