So, what I would like to ask about here is electric motors for turning aircraft propellers, while the electricty is generated by some other form of engine.
The main reason for this is to have a multi propeller aircraft that doesn't have huge and heavy engines built into it's wings. This is both to attempt to keep aerodymamic streamlining as clean as possible, but to reduce engine vulnernability, and keep the center of gravity within the aircraft fuselage.
I know I read about this concept somewhere, but have not been able to word my google search properly to get the result I am looking for.
Help.