Ron Many areas have an adjustment for no spinnaker or publish a NFS rating for boats racing with No Flying Sails.
In our area we adjust +18 for masthead boats with no spinnaker or +12 for fractional boats with no spinnaker. Other areas do +12 or +18 regardless if masthead or fractional. These are very simplistic adjustments that typically were designed for boats like our original C&Cs that have overlapping headsails, no sprits and are non planing hulls. With boats having non overlapping headsails (ex. C&C 115), fractional rigs that are nearly masthead (15/16 etc), sprits, boats whose handicap is based on planning off the wind etc … the +12 or +18 really does not adjust for the true difference. However with all this said in our area on a day with decent wind the +12 or +18 works to a degree and is good enough for JAM type sailing. We have toyed with the idea of different adjustments based on upwind vs downwind sail areas and other factors but that is too much work to implement. Regards Mike Persistence Halifax From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Ronald B. Frerker via CnC-List Sent: Tuesday, February 23, 2016 3:26 PM To: cnc-list@cnc-list.com Cc: Ronald B. Frerker Subject: Stus-List Handicap questions for JAM racers 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. Thanks Ron Wild Cheri C&C 30-1 STL
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