Thanks Roger. Yes I am using the Hacker C50-14XL. From what you are saying, it looks like I haven't really tested my cooling system yet as I only reached a little over 100F in the air, about 35F above ambient. It did seem to be flattening out there for the power I was using. Where did you get the info on magnet temperatures/current, etc.? I'd like to learn a little more about these motors.


Dean, it sounds like you have it made. I take it the 15F rise was measured after landing. I'm using an EagleTree sensor on the back surface of the motor which probably gets the least airflow. The temp measured on the ESC never went over 71F.

Jim O