Once known as Hartley18
Join Date: Aug 2007
Location: Melbourne, Australia
Thanked 65 Times in 65 Posts
Rep Power: 10
Re: Optimal propulsion system
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..
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.
"Honestly, I don't know why seamen persist in getting wrecked in some of the outlandish places they do, when they can do it in a nice place like Fiji." -- John Caldwell, "Desperate Voyage"
Last edited by Classic30; 10-16-2012 at 07:34 PM.