Are cylinder ships a dead-end invention?

Discussion in 'Boat Design' started by kach22i, Apr 15, 2008.

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  1. rwatson
    Joined: Aug 2007
    Posts: 6,166
    Likes: 495, Points: 83, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

    The last three contributions dont seem to have come across my previous quote -
    "that maximum heeling resistance is reached at winds of 25mph, and in fact the moving rotors actually claw their way back upright towards the wind. "

    This means in effect that the righting effort doesnt increase geometrically with wind velocity like sails do. After 25 mph, there is no increase in the pressure against the rotors.
     
    Last edited: Apr 17, 2008
    rwatson, Apr 17, 2008
    #16

  3. Omeron
    Joined: Feb 2007
    Posts: 163
    Likes: 2, Points: 0, Legacy Rep: 31
    Location: Istanbul

    Omeron Senior Member

    It is not the technology available which will bring them back.It will be the price of oil to do so. At over 112$ a barrel today, it is an interesting proposition, At over 150$ it is viable, At over 200$ you will probably have to.
     
    Omeron, Apr 17, 2008
    #17
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