But that was a rotating cylinder, I believe, that sought to develop a low pressure and high pressure side aerodynamically to drive the ship forward rather than electrical generation by the rotor shaft. I think you are right, it was a hybrid hull of some sort Len wrote: > Fletner Rotor ? Cousteau used that on one of his vessels and that hull > form was very hybrid cross between cat/tri and sea sled if I remember. > brian eiland wrote: > >How about a vertical axis wind turbine that would accept air flow from ANY > >direction without needing to align itself?? > >Brian