[C320-list] Shallow Bilge vs Deep Bilge

[Dennis Harris]

More keel/speed questions:

    We know that the wing keel boats were made in at least three keel 
versions:  Shallow Bilge/Original Wing Keel, Deep Bilge/Original Wing 
Keel, Deep Bilge/C310 Style Wing Keel.
Kalen indicates that Shallow Bilge/Original Keel is faster than Deep 
Bilge/Original Keel at 15 kts. wind (deeper keel adds a little more 
wetted surface/drag), but in high winds, wouldn't the Deep 
Bilge/Original Wing Keel be faster since keel is set deeper in water, 
making boat stiffer and keeping it up right?  Also, how does the Deep 
Bilge/C310 Style Wing Keel compare with the others?

    As for deep/fin keel versions, when the deep bilge was added, did 
the fin keels stay unchanged, or if changed to offset the bilge change, 
was it done when deep bilge was added or when C310 style wing keel was 
adopted?  Are there differences in performance between the fin keel 
versions?

    Dennis Harris
    C320 #694




ATrowbridg at aol.com wrote:

>The older shallow Bilge boats are faster even if they are supposed to be  the 
>same. We had two of the new and three older ones and regardless of who the  
>crew or captain was the shallow bilge boats always won. At 15 knots of wind the 
> three older boats would go 7.6 knots and on the same sail the newer boats 
>could  only get 7.1 to 7.4 knots. Just my beliefe based on the above.    Allen   
>  Kalen #4553
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