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RTL during LANDING on Quadplane Triggered by Low Battery

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@ovolkmann wrote:

Hi Guys,

I thought the issue with VTOL platforms going to RTL on battery failsafe was fixed in the latest firmware version but sadly, it doesn’t seem to be and almost cost me the platform. I am flying a very modified Nimbus setup with the CUBE and latest stable firmware (3.9.8). I was flying an automatic mission (from start to finish with VTOL_LAND as the last command), the battery was at 22.3V right before the transition to copter mode and then due to the high amp draw, got sucked down to below 21.7V (where I have my Low Battery Failsafe set). At approximately 4 meters from the ground during the landing phase, the platform decided to initiate RTL and proceeded to transition to Fixed Wing and fly home (actually, I have RTL_AUTOLAND setup so that it repeats the landing approach). I switched out of Auto and back into it to over-ride the RTL and it proceeded to return to the landing zone where I took over manual control and landed in Q_LOITER.

This is VERY DANGEROUS!!! I was a few seconds away from watching the platform fly into a power-line and tree when I grabbed the remote and took over control. Please please please can we do something about this? The logs for this flight can be found here: https://we.tl/t-2JTR46H80Z

The Telemetry Log can be found here: https://we.tl/t-iUdAvnvGGI

If someone can get back to me on this asap that would be fantastic. This issue causes major concerns for operations where you do not want to land where you took off from (ie, home) and removes the viability of low battery failsafe as with it enabled, this issue happens, and with is disabled, well, you dont have that security.

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