ORIGINAL: KeithB
Chad, I agree that there are big variables that can't be ignored such as prop size, RPM, etc. Also, looking at the online numbers is meaningless.
My observations are from looking at the Eagle Tree logs you've posted over the last few years compared to logs that I have running a Hacker C50 14XL. You're logs indicate that you pull higher amps with the outrunners than the C50 14XL inrunner.
Keith,
Static comparison of amps for the Evo and 14XL will certainly show a pretty big difference in amps - but - the Evo is usually turning several hundred RPM more (as is a Neu F3A). What you will also see on the Eagletree is that the amps drop more in the air with an outrunner - so amps in the air for the same RPM and prop are going to be closer together than what is seen on the ground. I've flown most of the popular motors out there, and what I really like about hte Neu F3A is the super smooth throttle response from idle to full, tons of torque. It really does make it easier to fly constant speed. An advantage I've seen with the geared inrunners is faster throttle response - not a big deal in pattern - but moreso for 3D/freestyle flying.
I've logged lots of flights of high kv and low kv inrunners and outrunners in the same plane(s), and I can't find anything in my data to support anymore than 5% increase in efficiency (looking at mah used for equal flights) with the geared inrunners for pattern applications.
Regards,
Dave