Sounds like it puts out more power than my ccrc50. I get 6900 rpm on zinger 22x8 in 17.5# bird it will pull vertical 180 to invert on take off. The first ignition module failed after 10 min of running. I think it was one of the problem ones. I now run the 2nd module on 2400 nimh 4.8 packs and after about 30 min of running the bat's still show 1700 ma remaining. So a full hr of flying on one charge is possible. The nimh do not pose any issues with high current draw on this motor.

I have about 2 hrs run time on mine now. The 20x10 prop turned about 7800 rpm and given Jody's input I put the larger prop to bring the rpm down.