All C270s and C28MKII are IB so we'd have to compare to a C27 IB. Northern California PHRF rates the C27 IB and the C270 IB the same at 204 with the C28-2 at 192.
PHRF of Southern California is very sloppy on keeping their base rates designations meaningful. For example there is now no listing for a C27 OB however a there is a C270 listed as a 192 but in the decades prior to the release of the C270 this was understood to be C27 OB listed as C270. I have discussed the So Cal rating with the only C270 owner racing there at the time and he reported he was kick'n ass at 192 using tri-radial Mylar sails so I dropped trying to clear up the discrepancies. PHRF ratings are all based on projected top speed but that's never the full story. Although somewhat non-traditional PHRF of Southern California includes a performance factor which allows grouping of boats acceleration. It really tells the story a short course or shifty conditions. Phil Agur s/v Wing Tip Secretary/Treasurer Call Sign WCW3485 IC27/270A MMSI 366901790 www.catalina27.org Vessel Doc# 1039809 -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Joe McCary Sent: Monday, December 03, 2007 5:46 PM To: [email protected] Subject: RE: catalina27-talk: Pictures of a new C270 I see the C27 PHRF rates about 203 here on the Chesapeake Bay (outboard, standard rig). What do the 270 & 28 Rate? Joe McCary Aeolus II #4795 West River, MD [EMAIL PROTECTED] > On Behalf Of [EMAIL PROTECTED] > Subject: RE: catalina27-talk: Pictures of a new C270 > > dont let the interior diagram fool you...the waterline form and the hull > apendages are what counts. > > compare an aerial perspective of a Viper640 to that of a J22 and you'd think > the Viper is a pig. > > the 280 rates about 30 seconds faster than the old 27.8
