I have a 2 meter powered glider with a cobalt 400 motor. I have a Electrifly C-30 Mini ESC in it with a 7 cell 1300 Nmh battery.
The battery and ESC are enclosed and the motor is hanging out in the breeze.

Here's the question: Where does most of the heat come from and what needs to be vented for cooling. I am not worried about the motor since it is hanging out front, but what about the battery and ESC. How much heat do they produce and what happens if they overheat.

I just want to be sure I don't cook something on the first flight.

Thanks for any help.