Van de Stadt, a very well known dutch designer, built 1949 the Zeevalk, a 36 ft racing light displacement with very hard chine (but not a flat bottom-boatt)for a plywood-fabricant.
This boat, the first hardchine boat within the light diplacements yachts of that time was very successfull in races and had a keel 1/6 wide of the boat. An additional rudder behind this keel for trim purposes. Not very deep this keel, but much shorter and guessed 3timess deeper as a bolger-box-keel on a sailing boat would be.
Will say: Keels with a remarkable volume and a slim hard-chine-boat worked very well together.
"Philip Smith" <pbs@...
> < I've spoken with Phil and Susanne about bulbous bows.
> They think that bulbous bows are expensive, work only
> in certain limited conditions of sea and speed and
> displacement and are generally a waste of time and
> The general point of the conversations was that if you
> are worried about speed and you have the money you'd
> be better off increasing the waterline length of your
> boat by five or more feet than adding a bulbous bow.
> Given the general tennor of our conversations it is
> probably safe to say that PB&F has not designed a boat
> with a bulbous bow nor are they likely to.
> Phil Smith
> Bolger rules!!!
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