Suddenly dropped from the sky while hovering, Mavic Air

[Deleted member 94047]

That eventually leads to the FC concluding ESC stall at 83.6 seconds, followed by motor shut down.

Thanks sar! Would the FC have done the same if the nearGround parameter was different? I was confused as to why that mattered enough to be included in the reason for motor stop.

 

[sar104]

Thanks sar! Would the FC have done the same if the nearGround parameter was different? I was confused as to why that mattered enough to be included in the reason for motor stop.

I don't know, but the implication is that the absence of enough altitude even to attempt to recover from the motor stall condition may lead to a motor stop command for safety reasons.

 

[hiflyer201]

freezing temp and visible moisture...stir well and you have ...Ice...easy recipe.

 

[Bebopperoo]

Sar104 you are amazing. I want you to have my child.
In fact, take all 3 of the little snots off my hands, please!

 

[Dan C]

The critical issue seems to be that the fc thought it was close to the ground, so it seems reasonable to speculate that the VPS sensors froze over too.

When the current to the motors reached a critical point, as sar points out, the FC thought it was preventing the drone from taking off or leaving the relative safety of proximity to the ground.

 

[sar104]

The critical issue seems to be that the fc thought it was close to the ground, so it seems reasonable to speculate that the VPS sensors froze over too.

When the current to the motors reached a critical point, as sar points out, the FC thought it was preventing the drone from taking off or leaving the relative safety of proximity to the ground.

No - it's most unlikely that they froze over - the vision sensors often fail this way in fog.

 

[ValentinCM]

Thank you all for the input provided.

Fly safe!