Please see the meld compare below,
4.1.6 (extracted from last log) to the left, 4.4.0 to the right:
Offset and ratio is changed, and ARSPD_USE got disabled.
Why? - this is a quadplane, is it best to fly it as-is on GNSS-speed, and do ARSPD_AUTOCAL ?
I’ve reproduced this in SITL and am working on a fix
the problem is that we have restructured airspeed twice since 4.1.6. We added automatic conversion when we did the first restructure, but for the 2nd restructure we made it auto-convert from the 4.2.x format. So conversion from 4.1.x and earlier no longer works and you end up with the default values.
Adding in a 2nd level of conversion would add quite a lot of complexity, so I think we’ll just have to live with users having to manually correct parameters if coming from such an old version of ArduPilot, sorry
Thank you for the explanation, it makes perfect sense - it was just a bit surprising.
BTW: I would appreciate your thoughts on why the transition never completed here: Quadplane transition failed(timed out), where is airspeed estimate?
