Burt, James’ answer leading you to search using “IOR ton rating is good advice. In short, the term “ton” was based on an IOR rating band that allowed IOR boats to race “one design”. IIRC the popular “ton” classes were: ¼. ½, ¾, 1, and 2. Sailing Anarchy has had several recent topics that cover IOR and “Ton” racing well.
Calypso would have rated as a 2 tonner. A J-24 sized boat would be close to a ¼ tonner. Today there is a resurgence of ton class racing with ¼ and ½ ton regattas being well attended. Boats that had been neglected for years are being resurrected, modernized and raced hard. Back in the heyday of IOR racing I had the opportunities to race extensively on ¾, 1, and 2 ton class boats. The racing was tight and fun. We used bloopers. In the PNW town of Bellingham a regatta called PITCH (Pacific International Ton Championship) was started in the early 80’s. The racing was as intense as the partying. Protest meeting often went past dinner time. Martin Calypso 1971 C&C 43 Seattle [Description: cid:D1BF9853-22F7-47FB-86F2-4115CE0BAF2F] From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of jtsails via CnC-List Sent: Monday, November 10, 2014 9:41 AM To: Burt Stratton; cnc-list@cnc-list.com Subject: Re: Stus-List boat terms Burt, The 3/4 ton term is a reference to the old IOR rating system. It was an effort to create level rating classes of boats that could be raced with figuring handicaps. Do a search on IOR ton rating. I don’t think there is enough info on sailboatdata.com to calculate clearance. James 1976 C&C 38 Oriental, NC From: Burt Stratton via CnC-List<mailto:cnc-list@cnc-list.com> Sent: Monday, November 10, 2014 12:19 PM To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com> Subject: Stus-List boat terms I own a 1974 C&C 33 ¾ ton I have looked around a bit and cannot find any reference to the term “3/4 ton” (in C&C terms). I did find the spec sheet available on sailboatdata.com for the ¾ ton but no explanation there. If anyone on the list can point me in the right direction I would appreciate it. Also, using the spec sheet on sailboatata.com is there a way to figure out the height off the water (or min clearance) from those measurements? Thanks in advance Burt
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