F35B will not transition to full horizontal flight

ArduPlane VTOL Plane
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i have a problem with F35B Transitioning. it seems that the throttle is not being pushed all the way. i understand that min airspeed is the issue here. https://drive.google.com/file/d/13E3AtMdWSS-h6ES9vRwDFYu3wsgyMIxh/view?usp=drive_link

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Hi @Farkhod_Khikmatov ,

have you had an airspeed sensor ?

If yes, you are with the param ARSPD_USE set 0, so the airsepeed will not be used and you need to enable.

if not, the Q_TRANSITION_MS is set as 7000 - this means that if you don’t have an airspeed, when you command a transition, ardupilot will wait for 7 seconds to achieve the transition speed, and after this timeout, you need to check the Q_OPTIONS how this is set - there is some bits that handle the transition too - if will do a “forced” transition - this is the scenario you must use if you don’t have an airspeed.

1 Like
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yeah i realized the airspeed for transition was too low lol. i forced the transtion and it basically just lost altitude before flying off.

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But you are not using the airspeed once the ARSPD_USE was set to 0 - or you changed ? Once ARSPD_USE is 0 the airspeed measurement is not be used by ardupilot - just an indication of airspeed.