Here's a silly idea, what if you separate the paddlewheel from the main hull, and give it it's own flotation so it stays at the same level regardless of the main hull's trim. Visualize a bulldozer driving in reverse, with the paddlewheel where the blade is. I have in mind something a wee bit lighter, but you get the idea.
I guess I'm sort of hung up on paddlewheels, maybe because I just finished a Mark Twain book!
--- In electricboats@yahoogroups.com, danbollinger <no_reply@...> wrote:
>
> Paddlewheels don't work well in small boats. I know, I've tried them. the problem is that they are very trim sensitive. If someone moves slightly it can have a big change on the wheel draft regardless of if it is a sternwheeler or sidewheeler. I suppose you could put the wheel at CG, but then there wouldn't be room for me and passengers!
>
> --- In electricboats@yahoogroups.com, "luv2bsailin" <luv2bsailin@> wrote:
> >
> > How about a paddle wheel?
> >
> >
> > --- In electricboats@yahoogroups.com, danbollinger <no_reply@> wrote:
> > >
> > > 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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