Hybrid question

[Martin A]

Hi

I read this in a post about possibly using electric motors on a hovercraft.

I wonder if you could use multiple RC model outrunner motors for the lift fans and one larger one to use as a generator. If all the motors and generator are 3 phase brushless motors with permanent magnets, you could just tie all the wires together and it would be sort of like an electric transmission. No controller. No batteries. The motors would try and turn at the same rpm as the generator. Ideally, you'd want the generator part to be built into the flywheel on the engine to eliminate any belts etc. I'm not really sure this would work, but I don't see why not.

There seemed to be no answer though. Any firm ideas on this?

Also, what determines the output voltage of an alternator direct from the windings, i.e before it is limited or rectified? Sorry if this is basic stuff but there doesn't seem to be any easily findable stuff on Google.

Thanks in advance

Martin A