Flat plate rudder vs naca drag

Discussion in 'Hydrodynamics and Aerodynamics' started by 23feet, Mar 20, 2016.

  1. 23feet
    Joined: Dec 2014
    Posts: 68
    Likes: 9, Points: 8, Legacy Rep: 10
    Location: Bay Area

    23feet Junior Member

    Hi Dennis,
    Thanks. I think that would be a great solution except the boat is on a drying mooring, and I think it would be a bit hard on the rudders.
     

  2. rwatson
    Joined: Aug 2007
    Posts: 5,861
    Likes: 295, Points: 83, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

    Not much point on a Wharram. The hull is deep enough to hit things before the rudders do.

    No, its not a good idea. The skeg is there for improved control while sailing. Some of the bigger versions have a retractable forward tab as well.

    James Wharrams imitation of a Polynesian hull has resulted in problems with directional stability when reaching under a modern rig.
     

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