Chad (or others)
I'm fairly new to this electric pattern thing. Could you explain why you are interested in RPM and how to determine what the optimum RPM should be? How does one go about picking a prop?
This may be particularly useful info for me -flying at 5500' . I've started with the APC 20.5x14 Chris recommends on the EMotion/30-10 combo. Haven't flown the batteries hard enough to judge how I like it, but it feels like it will be plenty of UP.

Thanks, Dan