View Single Post
Old Jun 21, 2012, 02:57 AM
Bruce Abbott is offline
Find More Posts by Bruce Abbott
We want... Information!
Bruce Abbott's Avatar
Hastings, New Zealand
Joined Jan 2001
5,217 Posts
Power loss is proportional to current squared. Your motor is rated at 70A for 20 seconds. At 100A it has to dissipate twice as much heat as it does at 70A. No wonder it's getting hot!

You should drop the prop size down to 8x6, or even 7x6. I bet it won't be much slower with these props (perhaps even faster if your airframe is slick enough), but the motor and ESC will stay much cooler.
Bruce Abbott is offline Find More Posts by Bruce Abbott
Reply With Quote