Pappy,

I think Chad's reply implied this, but I think it's worth pointing out that outrunners do pull more amps than inrunners. My observations are they pull 15% to 20% more amps (mid to high 70's for outrunners vs. low to mid 60's for an inrunner). This varies somewhat depending on the winds of the motor, but in matched power the inrunner will pull fewer amps. Considering the expense of batteries I personally like to treat my batteries as gently as possible so I prefer the inrunner.

It's true that the outrunner is less maintenance, but greasing gears is not really tough (not like bearings in a YS) and compared to a YS inrunners are still amazingly quite.

Really both have their pros and cons. One option you might look at is the Neu F3A motor, it's becoming fairly popular as an inrunner solution.

Keith B