I have a 48" ML Boatworks mono that I took the 30cc modified Gizmo engine out of and installed an SSS 56123 700kv motor, Seal 300a ESC, and I'm running on 12s so I can use the same props that I used for the gas engine. It runs the same speed and a little faster on electric. Around 65 mph.
On this FE setup the motor and esc don't hardly even get warm so I'm sure it's a bit overkill but I haven't checked the logs yet either.
My batteries are pretty worn out from years of heli use so I imagine new batteries in the 5000 to 7000 mAh range would make a ton of difference.
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