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Author Topic: New ideas for electric propulsion  (Read 1010 times)

inkaboat

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New ideas for electric propulsion
« on: March 16, 2007, 10:59:29 PM »

I'm new here, and I'm thinking of building a Perkasa type boat from a 1300mm hull that I seem to have found in my workshop...., but but I prefer experimentation to strict adherance to scale. I thought it might be a good idea to mount the electric motors vertically on top of my own version of a Volvo IPS drive. For those unfamiliar with the concept, Volvo has 'reversed' the stern drive and the propellor faces forwards, clear of the drive pod. Huge increases in efficiency and speed are claimed, and who can blame us model makers if we take advantage of their expensive research!  I just need to machine up two alloy drive legs which rotate around sealed rings set into the hull. One servo would steer it, using an Ackermann rig a la automobile to get the inside prop on a tighter radius than the outer. It's not scale modelling, but what a lot of fun! Anyone got any thoughts? All will be gratefully received.

John
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