Originally Posted by erkq
So you've had motor cut-out too? Are your intake holes set up to get air into the canopy when hovering or in FFF? Or, did you do it for both?
Well here's the thing - I had a complete failure of some kind, and I'm convinced it was the (expected) brown-out problem which is common when you use an E-flite ESC - I don't know why they can't get that right. I tried to add a BEC, but there's just no place to stick it really, and the only other thing you can do is cool down the ESC a bit. On the assumption that it's a 'borderline' issue, all you need to do is provide a tiny bit more cooling. A helicopter canopy without holes in it captures heat and that hot air swirls around inside and doesn't escape, causing a minor difference in the ability of the ESC to off-load heat, and it can be enough of a difference to cause a problem. The holes allow air to flow through the canopy instead of swirling around inside there.
It's because of how heating works... with fake numbers, here's what I think happens... The stock ESC and canopy setup can eliminate maybe 50 watts, but if the stock ESC is producing 55 watts, everything will heat up, slowly, but that heat build up will never stop (kinda)... so all you need to do in that situation is figure out a way to eliminate 5 more watts of energy. That's why little holes can make a huge difference.