Yesterday I tried a test with the Torqeedo that worked pretty good. I tried using it as a surface piercing prop drive. I raised the unit until the prop was half buried. Vibration was an issue at full speed, but at half-speed I got decent speed, about the same as when fully immersed. I couldn't do a real test, the water was only about 16" deep.
--- In electricboats@yahoogroups.com, danbollinger <no_reply@...> wrote:
>
> --- In electricboats@yahoogroups.com, "Gerald Boucher" <gmboucher@> wrote:
> >
> > Look at http://www.streamdancer.com/
> > There could be a solution, or an IDEA for a solution.
> >
> > Of course I couldn't find any information of how the motors and
> > configured and who sells them.
> > That doesn't mean you can't do the legwork and share the information
> > :-)
> > GerryB
>
> Starting a new thread.
>
> I'm looking for a shallow water propulsion system to connect to an electric motor to push a 14' boat upstream. Need about 6 mph.
>
> The drive above solves the problem using two, small propellers in tunnels. Problem is, both small diameter propellers and tunnels are inefficient.
>
> Right now I have a Torqeedo on a 12' johnboat, but the prop gets into the gravel bottom in the section of the Wabash River I motor with the grandkids. We need a simple, safe method of moving our boat, even if I have to build a boat and drive to do it.
>
> What's the name of the drive that uses a wiggling fin like a fish?
>
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