Just to be different from what everyone is saying... You don't NEED a brushless system for a model of this size. There are some VERY nice brushed motors made by Plettenberg in Germany. He also happens to make the Graupner "Ultra" series of motors. These big brushed motors are very fine quality and can be every bit as efficient as the average brushless motor of equivalent power capacity. Personally, I have experience with the Graupner Ultra-3300 series of motors. I have used the 10, 7 and 5-turn versions on a 2:1 Kruse gearbox, swinging props from 16-20" diameter. Batteries ranged from 18-36 cells, Sanyo CP-2400. This was for a competition and NiCd was specified in the rules... otherwise I would have used GP3300 NiMH cells. The brushed controllers for this power level (60A) are also smaller, lighter and less expensive than those for the equivalent brushless.


Don't get me wrong... I love brushless power, but it's not the only option.

-David