Re: [Electric Boats] Re: Alternative shallow draft propulsion

I was thinking about mating a jet ski drive to an electric motor. Great
for shallow draft.

Steve Spence
Renewable energy and self sufficiency
http://www.green-trust.org
http://arduinotronics.blogspot.com/

On 09/20/2010 04:26 PM, danbollinger 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
> <mailto:electricboats%40yahoogroups.com>, danbollinger <no_reply@...> wrote:
>>
>> --- In electricboats@yahoogroups.com
> <mailto:electricboats%40yahoogroups.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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