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    Re: Prop-walk.
    From: Peter Fogg
    Date: 2003 Apr 23, 10:46 +1000

    ----- Original Message -----
    From: "George Huxtable" >
    > Dave Weilacher was certainly wrong when he said-
    >
    > >The bottom end of the prop is more efficient than the top half.  The
    water
    > >is more dense >by 3% of an atmosphere at the bottom than at the top.
    >
    > That simply just ain't so. Water is virtually incompressible. Any
    > difference in density is infinitesimal.
    
    Could this be, once again, a dispute between theoretical 'fact' and
    practical experience? One of the problems with props is cavitation, they
    don't function well in the water nearer the surface that contains more foam
    than deeper water with less air bubbles.
    
    
    

       
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