Wednesday, July 9, 2014

[Electric Boats] Re: new member, bruce

 

An Archimedes screw is a pump, not a prime mover. From what I understand, such a screw will not have better performance than a prop of the same diameter. I will say that a prop in a tunnel hull can work to reduce operational draft, but it is less efficient than a prop mounted outside the hull, but I think better than a axial impeller (jet drive).

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