Rob was head of design 1974-1994. David F. Risch (401) 419-4650 (cell) 1981 40-2
> From: rjcasci...@comcast.net > To: cnc-list@cnc-list.com > Date: Thu, 27 Sep 2012 14:24:35 -0400 > Subject: Re: Stus-List Adding Keel Shoes > > Alex, I'm pretty sure that Rob Ball was the responsible designer pre-1980 as > well......... > > -----Original Message----- > From: cnc-list-boun...@cnc-list.com [mailto:cnc-list-boun...@cnc-list.com] > On Behalf Of Alex Giannelia > Sent: Thursday, September 27, 2012 12:44 PM > To: cnc-list@cnc-list.com > Subject: Stus-List Adding Keel Shoes > > Fred, > > Thanks for that info. I have been researching the issue of keel/rudder > shape for quite some time and no conclusive answers. Some feel the > elliptical ends are best (mainly for rudders) and there is another body of > thought that the bottoms should be squared off. If aerodynamics and > hydrodynamics were a real science, they would all look the same. > > I noticed the pre-Rob Ball designs had rounded bottom edges and the post > 1980 designs had flat shoes. > > One now deceased sailor at our club in fact took his original swept back > Viking 33 keel off, sent it to Mars and had it reshaped to look like the Rob > Ball designs and got great pointing as a result. > > Another guy at another club simply melted old batteries and extended the > keel as you did. > > > Alex: > > I was fortunately able to get a drawing of the shoe from Rob Ball that > extended the existing keel in all aspects. Once it was faired in you could > not tell it did not come from the factory like that. > > As I recall the bottom of the keel was flat. > > Fred > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com
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