Do ESCs get damaged after props hit the ground

from diy drones forum

by the way, what version of copter are you using?

Ardupilot suports very nicely motor redundancy, as you can see:

you can check this discusion to

https://discuss.ardupilot.org/t/how-to-modify-firmware-for-motors-p…

long ago (2013): https://www.youtube.com/watch?v=TaP76IzKzLc

Sahan said:

Thank you so much for the reply alberto. So as you mentioned when the props are stopped by a external force it burns. In my case it didnt burn. When I connector a new motor to that esc (Esc1 on my hexarotor) and tested it, it worked fine on the ground. Even during take off there was no problem. It hovered 2m above ground and still there was not problem with esc1. As iI increased throttle and stared climbing the ESC failed causing the motor1 to lose thrust and flip. So my question is during the initial crash where motor1 hit the ground, did the esc get partially damaged. That is it can handle a lower current during takeoff but as throttle is increased it fails. Is this correct. How do I check if the esc is completely okay. Thank you in advance. I have attached a video of my flight and the flight logs as well

https://drive.google.com/drive/folders/1UotV7IQiK0NQLzqxRmENUtKkGJ0…

Alberto Vila said:

well, i must say that is not the true reallity.
Ardupilot has efective colision detection system, so when the drone is in very specific conditions,
puts the throttle to 0%. Crash Check — Copter documentation
A lot of “fligth controllers” come with this features integrated, because as you know,Ardupilot
software and hardware has been copied a lot around the world, because is one of the betters…

I burned myself some of these cheap ESCs, just by holding the prop/motor, and put a 2000us pwm signa
l or a 100% throttle(standar not d-shot), this mosfets just explode or burn and even cach fire helped by
the termal-plastic envolture… so Sahan, you must operate this cheap ESCs under favorable conditions
to prevent these events,
i recomend to you if you can, pursache overdimensionate electronics
to handle more current if you dont want to have an accident of this kind.

Richard Boyhan said:

More than likely you did not damage the ESC. I fly racing drones and crash all the time with no trouble. That is not to say the prop might have hit the ESC and damaged it. To help protect my ESC I tape old props over them to protect them from props hitting them. Good luck. Richard