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post #68 of Old 10-16-2012
Once known as Hartley18
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Re: Optimal propulsion system

Originally Posted by deltaten View Post
I don;t remember the name; but there's some kinda motor controller that lets ya run from 0 rpm up to max without loss of torque. "Variac" comes to mind; but I could be disremembering?!
They're called "variable speed drives" or "VVVF motor controllers" or (whatever else they can think of) in industry. There are a host of manufacturers out there: Toshiba, Mitsubishi, ABB and Danfoss being the most common for marine use. Now cheap and off-the-shelf..

Originally Posted by deltaten View Post
OK.. new twist....
What about air cooled engines??
I got's an old 2 cyl Honda 350 that would be a willing donor!!!!!!
Too noisy. You need to get air in to cool it (obviously) and that means plenty of holes to let the noise out. There's plenty of nice cool water in the ocean that does a better job.

A bad day on a boat beats a good day in the office

Last edited by Classic30; 10-16-2012 at 08:34 PM.
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