I have a small quadcopter and after around a 10 minute flight, I can feel it gets very hot. Is this normal?
2 Answers
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"Hot quadcopter" is a bit broad of a term, a lot of things can be hot in there.
- Maybe it's the VTX, then it's normal, they can get hot up to 80C. You might want to use a heatsink though, depends on your VTX.
- It might be the Flight Controller's CPU itself. For example, F7 processors can get hot up to 70C
- It also might be motors. If you can barely touch them then:
- You might have a bad tuning on your quad:
- High D gain
- Not enough filtering
- Conductivity problem, you might have too long motor screws and they are touching the windings.
- You might have a bad tuning on your quad:
Sources and additional info on hot motors:
https://oscarliang.com/check-motor-screws-touching-winding/
https://oscarliang.com/mini-quad-motors-overheat/
https://youtu.be/eo2sjTNS0pc
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It is normal for a drone to get hot after a flight, especially the motors as they spin up to a few hundred times per second. If the drone becomes so hot that you can barely touch it, that could be a sign of an overheating motor and you may have to replace your motor.
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$\begingroup$ Hot motors can be a sign of a bad tuning also. Like high D gain or not enough filtering. oscarliang.com/mini-quad-motors-overheat $\endgroup$ Commented Apr 16, 2020 at 9:23
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$\begingroup$ @NikitaPedorich mind posting that as an answer? $\endgroup$– user149Commented Apr 16, 2020 at 9:24