Hi Ron, We have a pretty simple / easy way to deal with that: We have spin / non-spin classes with the same phrf ranges..
This way you completely avoid all the complications as it's pretty tricky to judge the spin's advantage: The effects will depend on the length of the course, it's nature (Is it 'Reachy', triangle, windward / leeward, etc) and the boats themselves. Some boats benefit more than others. I think just "adding XX" to Phrf will skew the results. Having separate spin / non-spin classes is much simpler, fairer, and less open to controversy. My 2 cents , Good luck with it. -Francois Rivard 1990 34+ "Take Five" Lake Lanier, Georgia Greetings folks,We have a problem with how to handicap boats that race with jib and main only (JAM). ?The PHRF handicaps basically are for spinnaker racing. ?I believe that there were some clubs, a few only, that adjust numbers for JAM boats. ?We make adjustments to the numbers for our lake conditions and style of boat (older displacement etc.), but not sure how to fix JAM.Polars that I have seen for about 6 boats all show with chute only. ?Does anyone know if there are polars for downwind sailing without chutes? ?How can one arrive at those speeds?Could some of you whose clubs adjust numbers let me know any info you can on how that is accomplished at your club? ?And the rationale behind the adjustment.If it gets too specific for the whole list, we can take it offline later to keep traffic down.ThanksRonWild CheriC&C 30-1STL Regards
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