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#1 2024-01-04 12:01:06

SeaRobin
Member

"E" measurement

Hello everyone. I'm getting a mainsail cover made from Sportech Sails in Ontario. I live in Atlanta, Georgia. There are so many C&C 27's up there, I figured a "local" canvas shop would be more apt to know what a sailcover for a 1973 C&C27 looks like, instead of guessing like a local shop down here would have to do. Anyway, here's my question. In the specs section of this site, a MKI shows an "E" measurement of 10.5. A MKII shows an "E" measurement of 9.5. My boat is hull number 270332, which makes her a MKII. But as I read further in the description, the paragraph said there is no difference in the "E" specs of a MKI and MKII. So, which is it?

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#2 2024-01-04 16:43:42

TalW
Member

Re: "E" measurement

Mainsail E measurement for the MkII is 9'6" but the boom is (or at least was originally) the same length as the MkI so much longer than the foot of the sail.  The boom for the MkI is already overlength to allow for end-boom sheeting to the traveller at the aft end of the cockpit.  I'd hazard a guess that the MkII's mainsail is ~2' shorter than the boom?

I'd ask Sportech whether the fact the foot of the sail and the boom are different lengths will have an impact on the sail cover, particularly if you're getting a Happy Pac with it's unique aft hoop-like fitting.

Cheers!

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#3 2024-01-04 20:41:02

SeaRobin
Member

Re: "E" measurement

Thank you for the quick and informative reply. The cover that the sailmaker described has some sort of tying up, or loop thing at the end, kind of to tidy up I guess. Most, if not all the covers that I have looked at down here are open ended. The way the sailmaker described the one he suggested was that it tied up at the end so that wasps and such couldn't access the sail. Does that sound right? Anyway, The boat is not so close I can run up and measure, but close enough so that I can take a day off and measure. I want to get it right. My boat, #332 has boom end sheeting. I sometimes wonder if during the production runs, even when slight changes are made, the factory uses up all the "leftover" stuff from the first run, then when that is gone, use the new modifications stuff. The reason I say  that is that from all the pictures I can find, my boat has a pretty blue hued cloth that I have only seen in the MKIII's. Again, thanks for the info. I'm sure between running up and taking a few measurements and listening to folks who know way more than me, it'll work out just fine.

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