GuilinFeiyuElectronicTechnologyCo., Ltd
GuilinFeiyuElectronicTechnologyCo., Ltdhttp://www.feiyudz.cnE-mail: service@feiyu-tech.com
5
10.FY-31AP AutonomousFlight Modes
Three autopilotmodesare incorporated into the FY-31AP,you can setitviaafree receiver
channeland a3-position switch (named as “SW2”).
lAutopilotmode1:
Deactivated.The autopilotfunction isnotactivated ,the flightmodesare
determinedbythe “SW1”.
lAutopilotmode2: AutoReturn ToLaunch RTL）.When activated inthismode,the FY-31AP
willautomaticallyflythe plane back to the take-off point,while maintaining altitude.Upon
reaching the launch area,the unitwillautomaticallyflythe plane inacircleat adefaultcircling
radiusof80 meters.
lAutopilotmode3: Auto CirclingMode(ACM). When activated in thismode,the plane will
immediatelyflyin acircle.
The centre ofthe circle isthe pointofactivation
.The defaultcircle
radiusis80 meters.The aircraftaltitude will be automaticallymaintained throughoutthe
ACM.
Autopilotstall warning
a. The FY-31APhas somecontrol overthe throttlechannel. Therefore,when flying in
AutopilotModes,please ensure you have enough forward movementto preventstalling.
b. FY-31APmay have acontrolover the throttlechannel, butthe throttlecontrolsignalis
baseon the stick controlsignaland will autoadjust according the altitude and speed then
outputthe combined signal. Ifyourforwardmovementcannotcompensatefor the
autopilot sactive altitude hold,your aircraftwillstall.
c. ThisisespeciallyimportantifRTLispartofyour RCfailsafe.In the eventofRCLink lost,
you cansetRTLintoyourReceiverfailsafe.However,please DO NOT forgettoalsosetyour
throttle failsafe to between 25 % to50% to ensure the plane doesnotstall.
d. Never setyour throttle failsafe to zero.Ifyou do so,your aircraftwill RTLin acontinuous
stalled flightwhich will resultin acrash.
Attention: FY-31AP canwork in automatic flightmode,though withoutOSDmodule.Whether
you have been connected the OSDor not,FY-31AP can work normally.Butifthe FY-31AP isnot
connected GPSmodule,itwill function as purelyas aflightstabilizer.The autonomousflight
modescannotbe engaged.
11.RedLED Flashing& GyroscopeRe-set:
Ifthe following conditionsoccur,the FY-31AP initialization isrecommended:
(1) The device has notbeenused for alongtime.
(2) There isachange in environmentaltemperature ofover 30 degreessince last flight.
(3) TheRed LEDflashescontinuouslyeven whenthe FY-31AP remainsstationaryabout20s,and
you never activate the motor.
(4) Ifthe Red LEDison solidallthe timeevenwhen the FY-31AP isstationary,itmeansthe
gyroscope isfaulty,and the unitneed to be sentback for repair.
