Here's a hull speed story some of you racers might find interesting. My current boat is a centerboard Bristol 30, a 1960s CCA racer designed by Halsey Herreshoff with full keel, cutaway forefoot, attached rudder, etc.
Of course, IOR boats like C&Cs sail circles around it in lighter winds. In 12-15 knots, it will sometimes reach 6.6 knots. But, in more than 20 knots of wind, with full main and a 130, the boat will hit a steady 7.5 knots on a close reach with jumps up to 7.8 knots. This is GPS speed in Boca Ciega Bay just off Tampa Bay, a protected area where you can have 1-2 foot seas and little current when the wind is really kicking up, which makes it fun to sail. The waterline is being stretched out as the boat heels over 30 to 40 degrees, but that shouldn't account for all the speed. Especially because I am not a racer. I guess the Herreshoffs knew a thing or two about designing sailboats back in the day. Jack Brennan Former C&C 25 Shanachie, 1974 Bristol 30 Tierra Verde, Fl. I Sent from my Samsung Galaxy Tab®|PRO -------- Original message -------- From: dwight veinot via CnC-List <cnc-list@cnc-list.com> Date:08/25/2015 7:23 PM (GMT-05:00) To: cnc-list@cnc-list.com Cc: dwight veinot <dwight...@gmail.com> Subject: Re: Stus-List C&C 26 Sail Plan Thoughts! Well I wasn't peed off, just skeptical of those speeds based on my own mediocre experience but kudos to you Sam for doing what one famous America's Cup skipper referred to as "No Excuse to Lose"...keep up the good sailing and no need to keep quiet from my point of view; I have never seen knot abbreviated as kn, that confused me in conjunction with the numbers so I asked; perhaps I am the one who should have kept quiet Dwight Veinot C&C 35 MKII, Alianna Head of St. Margaret's Bay, NS d.ve...@bellaliant.net On Tue, Aug 25, 2015 at 7:34 PM, Sam Salter via CnC-List <cnc-list@cnc-list.com> wrote: A few things : My genoa is an almost new laminate sail; The main is only 5 short seasons old; I've got a folding propeller ; my bottom is smooth like a babies - I take it out every winter!; I’m measuring speed with a Speed Puck (GPS) The 8kn readings were brief and fleeting (not more than the 10secs to register in the instrument. The 7kn readings did register though, but they were not sustained - like the 6+kn readings were. During this whole time I was beating, which is why I pondered on the possibility of sustaining 7 or 8 on a beam reach. I fairly regularly exceed theoretical hull speed - If you're not, you're not trying ! The 26 is not known to be a fast boat. I've done a lot to get her faster. There are a lot of faster C&C's on the water which is why the 26's aren't raced. And yes the 27 is faster! Sorry I pissed so many people off - I'll keep quiet in future! sam :-) From: dwight veinot via CnC-List Sent: Tuesday, August 25, 2015 2:44 PM To: cnc-list@cnc-list.com Reply To: cnc-list@cnc-list.com Cc: dwight veinot Subject: Re: Stus-List C&C 26 Sail Plan Thoughts! sorry Russ, I thought he said a beam reach must have missed the part about puffs, still that's very fast for a 26 but if he can do it course be damned as you say, then good for him Dwight Veinot C&C 35 MKII, Alianna Head of St. Margaret's Bay, NS d.ve...@bellaliant.net On Tue, Aug 25, 2015 at 2:52 PM, Russ & Melody via CnC-List <cnc-list@cnc-list.com> wrote: Hi Dwight, Please reread Sam's message before getting out the pitchforks. He said 7 or 8, in the puffs. I would not characterize puffs as "regular"... On a prairie lake I think his experience is quite achievable in hot summer conditions when all you want to do is sail fast, course be damned. Cheers, Russ Sweet mk-1 At 10:05 AM 25/08/2015, you wrote: what do you mean by 7kn to 8kn regularly? If you mean 7 knots or 8 knots through the water or over the ground with a C&C 26 I would say you should be a race winner every time on corrected time; that is really fast for a C&C 26 even on a beam reach and I got a feeling you would probably leave my 35 MKII struggling to stay close behind...before everyone runs out to get a C&C 26 are you sure about those numbers; I have only ever seen a couple of C&C 26's around here...I don't remember them being quite that slippery, in fact my C&C 27 MKIII always seemed to be much faster on all points of sail Dwight Veinot C&C 35 MKII, Alianna Head of St. Margaret's Bay, NS d.ve...@bellaliant.net On Mon, Aug 24, 2015 at 11:34 PM, Sam Salter via CnC-List <cnc-list@cnc-list.com> wrote: I know there’s a few 26 owners on here so thought I’d share my thoughts on optimizing my sail plan. Jump in anyone, I’m open to any thoughts!  Was out sailing today, only boat on the lake – I love that! So I thought we’d play around with the saill plan. Wind was 8kn -12kn. (Estimate – I usually think if I ssee the occasional whitecap it’s around 10kn)  I have a 135% laminate genoa from Evolution Sails in Toronto (2 seasons). A Dacron main with 2 full and 2 partial battens from Leiche & McBride in Vancouver (5 seasons).  I have a flexofold prop; 4-1 outhaul; Garhauer genoa cars; Harken traveller; Cunningham; Garhauer ridged vang; (no backstay adjuster)  The C&C 26 is a tender boat and we were doing about 5.5kn to 6kn beating to windward at 20deg – 25deg heel. Flattening with the outhaul reduced heel a bit. (speed measured with a Speed Puck) Furled the genoa to about 110%. Just brought the leech forward of the spreaders so no interference. Boat stood up to 13deg to 16deg. Speed was between 5.8kn – 6.4kn. Went up to 7kn or 8kn in the puffs (theoretical hulll speed is 6.25kn) No bubble in the luff of the main. Obviously, the furled genoa wasn’t setting great and the starboard tack was better than port tack. On a beam reach I think she’d do 7kn or 8kn regularly.  So here’s my thoughts: I’m thinking of getting the genoa recut to a 110% or if that’s not practical (...and I suspect it isn’t) order a new 110%. Eventually a new laminate main will be needed too! I’m well pleased with 6+kns at 10kn of wind and 16deg angle of heel. Very little weather helm I’ve not tried it yet with the genoa at 110% in light wind. In heavy air the main can still be reefed (...as could the 110%).  OK guys, am I missing something? (I’m not looking for advice on where to buy used sails!)  sam :-) C&C 26 Liquorice Ghost Lake Alberta  _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
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