Rick, This has been discussed recently for shorthanded sailing on the Chesapeake. Bottom line is there is no way to race spin and non-spin together fairly. You can come up with a differential, bu it nothing more than a SWAG
Joel On Friday, March 20, 2015, Rick Brass via CnC-List <cnc-list@cnc-list.com> wrote: > OK. I know this has been discussed before. But I just spent almost two > hours in the mail archives rereading a whole bunch of previous messages, > trying to come up with a consensus opinion on how to adjust PHRF ratings to > allow spin and JAM boats to compete in a single (small) fleet. > > > > What I firmly believe I have discovered is that, sort of like economists > and politicians, if you laid all the opinions end to end they would never > reach a conclusion. > > > > I know that a number of PHRF organizations give a boat both a Spin and a > non-spin rating. And I understand that local some local organizations with > small fleets running in a single event will adjust the ratings of boats in > non-spin to promote more even competition. From what I can see, the credit > for running non-spin seems to be in the range of 10-18 seconds, or 10-15% > of the boat’s PHRF. > > > > What I’m trying to do is plan for a “C&C Cup” to be run as part of a local > charity regatta called Pirates on the Pungo, in Belhaven, NC on the weekend > of May 15-17. More on that later. > > > > The race on Saturday is a longish (10-12NM) pursuit race that starts and > finishes in the harbor and has north, south, east, and west legs. I know of > about 15 C&Cs within a day’s travel of Belhaven, so I’m guessing the fleet > would include 8-10 boats, with some cruisers and 1 or 2 real racers. To > promote camaraderie and competition, and also so I don’t have to pony up > too much for the prizes (the winner will get a half hull of his own boat > made by Andrew Burton), we would have a single fleet. > > > > So help me here: > > > > How does your local PHRF or sailing club adjust the ratings between Spin > and JAM to allow both types of boats in a single fleet? And how equitable > are the results based on your experience? > > > > > > Rick Brass > > *Imzadi *C&C 38 mk 2 > > *la Belle Aurore *C&C 25 mk1 > > Washington, NC > > > -- Joel 301 541 8551
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