Propeller-less Propulsion
By George L. Petrieillustrations b... | Posted November 2006 |
Ever since the paddlewheel gave way to the screw propeller, there has been little fundamental change in the way that ships and boats are propelled through the water. Over the last century or so, engines and hull forms have evolved substantially, but the means of converting horsepower into thrust has remained pretty much the same: a rotating propeller accelerates the surrounding water in one
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