Bill, The trade-off would come when the wind tops 15-18kts. A sport boat, even with a small jib is going to get up on a plane and scream past a displacement hull going downwind..
I would tend to agree with you in light airs, although typically the sport boat has a huge weight advantage in those conditions too.. We have a J-100 that primarily races in Non-Spinnaker, why? Can’t tell you. But he is very competitive primarily because he changes jibs going upwind and downwind. As soon as he turns at the windward mark, the little jib comes down and the big one goes up and off he goes! Chuck Gilchrest Half Magic 25-1 Orion 35 Landfall Padanaram, MA. From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Bill Coleman via CnC-List Sent: Tuesday, February 23, 2016 4:09 PM To: cnc-list@cnc-list.com Cc: Bill Coleman <colt...@verizon.net> Subject: Re: Stus-List Handicap questions for JAM racers I think the sport boats get screwed in the Jam Races, at least on L Erie, Their overall rating incorporates their sprit, which they get no use from in a JAM, not to mention their small jibs. Bill Coleman C&C 39 Erie, PA From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Michael Brown via CnC-List Sent: Tuesday, February 23, 2016 3:18 PM To: cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com> Cc: Michael Brown Subject: Re: Stus-List Handicap questions for JAM racers PHRF Lake Ontario has supplied both FS and NFS ratings ( if appropriate ) for years. They use to track both FS and NFS races and analyze the results. For 2012 season this was changed to keeping a FS SP based on race results and using a calculated offset for NFS. http://phrf-lo.org/index.php?option=com_content <http://phrf-lo.org/index.php?option=com_content&view=article&id=508:nfs-delta&catid=93:us-sailing-offshore-office&Itemid=214> &view=article&id=508:nfs-delta&catid=93:us-sailing-offshore-office&Itemid=214 As other have mentioned the delta is around 16 - 18 sec/mile for some fractional rigged boats, in the 22 - 24 sec/mile for many full hoist rigged boats, and 40+ for "sport" boats that might plane or surf extensively. Michael Brown Windburn C&C 30-1 Date: Tue, 23 Feb 2016 19:26:04 +0000 (UTC) From: "Ronald B. Frerker" <rbfrer...@yahoo.com <mailto:rbfrer...@yahoo.com> > To: "cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com> " <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com> > Subject: Stus-List Handicap questions for JAM racers Message-ID: <1620292786.1504268.1456255564054.javamail.ya...@mail.yahoo.com <mailto:1620292786.1504268.1456255564054.javamail.ya...@mail.yahoo.com> > Content-Type: text/plain; charset="utf-8" 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
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