bet you a dollar to a doughnut there is more thrust
... How beautiful it is to do nothing, then rest afterwards
From: danbollinger <no_reply@yahoogroups.com>
To: electricboats@yahoogroups.com
Sent: Friday, March 30, 2012 1:30 PM
Subject: [Electric Boats] Re: Electric Sternwheeler
To: electricboats@yahoogroups.com
Sent: Friday, March 30, 2012 1:30 PM
Subject: [Electric Boats] Re: Electric Sternwheeler
Someone correct me if I'm wrong. I thought that drag propulsion is a function of the paddle's immersed float area. Adding more floats (paddles) inline does not change that area (viewed from the stern), therefore, there is no additional thrust.
--- In electricboats@yahoogroups.com, George Field <fieldg63@...> wrote:
>
> Howabout, instead of a paddle wheel you make a paddle track! Like a tank ttack or a snowmobile belt with paddles attached. Paddles would the travel the length of the boat between the pontoons and back under the deck. You have the option of making the paddles shorter ie not so deep and narrower than a paddle wheel. The paddles would be more efficient as they would be at right angles to the water surface for the whole length of the hull instead of only at the bottom of the stroke on a paddle wheel.
>
> Just a thought!
>
> George
>
> Sent from my iPad
>
>
>
> On 2011-03-06, at 2:43 PM, "Mooncat" <mooncat_2005@...> wrote:
>
> > I am planning a paddlewheel boat for use on British narrow canals. She will be 23'6" long (maximum to tow on a trailer behind a private car) 7' beam, with a catamaran hull so the the centre mounted wheel does not project below the bottom of the hull (draft 1',) but has a good flow of water to the wheel.
> >
> >
>
--- In electricboats@yahoogroups.com, George Field <fieldg63@...> wrote:
>
> Howabout, instead of a paddle wheel you make a paddle track! Like a tank ttack or a snowmobile belt with paddles attached. Paddles would the travel the length of the boat between the pontoons and back under the deck. You have the option of making the paddles shorter ie not so deep and narrower than a paddle wheel. The paddles would be more efficient as they would be at right angles to the water surface for the whole length of the hull instead of only at the bottom of the stroke on a paddle wheel.
>
> Just a thought!
>
> George
>
> Sent from my iPad
>
>
>
> On 2011-03-06, at 2:43 PM, "Mooncat" <mooncat_2005@...> wrote:
>
> > I am planning a paddlewheel boat for use on British narrow canals. She will be 23'6" long (maximum to tow on a trailer behind a private car) 7' beam, with a catamaran hull so the the centre mounted wheel does not project below the bottom of the hull (draft 1',) but has a good flow of water to the wheel.
> >
> >
>
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