Thanks Kolls,
I will check out what those numbers mean. You are probably right about not having enough head speed. Would anything have to be changed if I tried the Esky 370 brushed eg. diodes etc.? The reason Iam asking about the Esky motors is that my son has a king 2 and a trex 500. He does not use the king 2 very much anymore. He could send me the motor if it was compatible with the Eagle 50.
Chris