I believe that large mainsails were penalized under IOR at that time so huge foretriangles became popular and also very large overlapping genoas.
If I am not mistaken IMS and other rules that followed IOR were more based on performance than design and allowed larger main sails to come back and resulted in smaller more easily managed headsails My conspiracy theory is that the deck sweeping 170% genoas were heavily influenced by insurance companies and boat yards that wanted more collisions and more work! 😊 Mike Persistence HAlifax From: Ronald B. Frerker via CnC-List <cnc-list@cnc-list.com> Sent: November 3, 2022 3:04 PM To: Stus-List <cnc-list@cnc-list.com> Cc: Ronald B. Frerker <rbfrer...@yahoo.com> Subject: Stus-List Re: C&C 35 MK I 170% That 170 seemed to be popular sport back in the day. We had one for our 30-1 when I bought it and I noted that two other 30s at the lake had them also. PHRF killed that sail; the additional penalty was deemed too much. Crew didn't mind tossing them away. By the time we finally got it trimmed in, it was time to tack again. Ron Wild Cheri C&C 30-1 STL On Thursday, November 3, 2022, 11:22:32 AM CDT, Hoyt, Mike via CnC-List <cnc-list@cnc-list.com> wrote: Jeff That would likely sheet to the dinghy towed behind your 34 There was a story behind the use of 170 genoas back in the day but I forget what it was Mike Hoyt Persistence
