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Old 07-06-2014, 04:34 AM   #21 (permalink)
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To me it looks like those paddle wheels would block the flow of water, even when they were moving.

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Old 07-06-2014, 02:04 PM   #22 (permalink)
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If the paddles were tightly fitted against the top, bottom and dividing wall I think it would eliminate the [edge][wing-tip] effects of a paddle or propeller blade moving in open water.

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aerodynamics, flow visualization, testing, water tunnel

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