Thanks Rick, and thanks all for the responses. My regional sailing association's PRHF rules are here: http://rmsail.org/?page_id=215 . The Sailing Association of Intermountain Lakes is one of three RSAs in US Sailing's Area F.
In the end I think my rating is pretty consistent with all the other responses - effectively 174 base, +12 adjustment for fixed 2-blade prop, -6 adjustment for SMW > 180% of J, adjusted PHRF 180 with spinnaker, 198 without spinnaker. It's just that my certificate is not explicit about the base and prop adjustment - the prop adjustment is kind of "built in" to the base PHRF. When I renew next year maybe I'll ask my RSA's PHRF chairman to be more explicit about that - he's conscientious, and a friend on whose J/22 I've crewed before, and we've been communicating about my rating. Also, FWIW, I compared Schell regression formula outputs for "brochure data" (8000 lbs displacement and 11.5' E dimension) versus actual measured data for my boat (9200 lbs displacement and 10.5' E dimension), and the added weight and smaller mainsail cause an 11-second increase in output (9 seconds due to displacement difference, 2 seconds due to mainsail area difference). Since the rating process in my RSA doesn't seem to depend directly on displacement, and since my boat's rating is consistent with 30-1 ratings in other RSAs, I'm not concerned about that Schell regression formula output difference. I'll get the 2 seconds back when I buy a new, properly-sized mainsail. And now I'm thinking about folding props... Thanks again. Cheers, Randy ----- Original Message ----- From: "Rick Brass via CnC-List" <cnc-list@cnc-list.com> To: "cnc-list" <cnc-list@cnc-list.com> Cc: "Rick Brass" <rickbr...@earthlink.net> Sent: Friday, May 20, 2016 7:10:35 AM Subject: Re: Stus-List 30-1 PHRF Rating You may want to look at your local PHRF rules. The adjustment for the oversized spinnaker is typical. But in NCPHRF the presumption is that you have a folding or feathering prop (or an outboatd that can be raised out of the water). An exposed solid 2 blade prop is a +12 second adjustment. Rick Brass Washington, NC From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Randy Stafford via CnC-List Sent: Friday, May 20, 2016 12:34 AM To: cnc-list <cnc-list@cnc-list.com> Cc: randy.staff...@comcast.net Subject: Stus-List 30-1 PHRF Rating Listers- Just wondering how many of you 30-1 owners out there have ever received a PHRF certificate for your boat, and what your rating was. Looking at http://www.ussailing.org/wp-content/uploads/DARoot/Offshore/PHRF/2014%20PHRF%20Handicaps%20Data.pdf, the range is 168-186 with mode 174 and mean 174.64 (and median 177). But it's hard to know the particulars of all those boats that were rated e.g. how many had folding props. And there may be rating inconsistency between US Sailing regional sailing associations. The PHRF chairman of my regional sailing association gave my 30-1 base PHRF of 186, and an adjusted PHRF of 180 (a -6 adjustment due to spinnaker max width >180% of J). AFAIK my boat is totally stock, including a fixed two-blade prop. Just wondering how my PHRF ratings compare to other 30-1s' PHRF ratings, and wondering about the particulars of the 30-1s that got rated. Thanks In Advance, Randy Stafford S/V Grenadine C&C 30-1 #7 Ken Caryl, CO _______________________________________________ This list is supported by the generous donations of our members. If you like what we do, please help us pay for our costs by donating. All Contributions are greatly appreciated!
_______________________________________________ This list is supported by the generous donations of our members. If you like what we do, please help us pay for our costs by donating. All Contributions are greatly appreciated!
