That flat area forward of the keel on many 70s and 80s C&Cs, including my 40, was there as a way of fudging an IOR measurement point. The purpose was to make the rule think the boat was slower than it actually was. The boats do pound if you motor straight into waves, but heeled the hull presents a much nicer shape to a seaway.
Andy C&C 40 Peregrine Andrew Burton 61 W Narragansett Newport, RI USA 02840 http://sites.google.com/site/andrewburtonyachtservices/ +401 965-5260 > On Nov 4, 2014, at 12:28, Bruno Lachance via CnC-List <cnc-list@cnc-list.com> > wrote: > > The 33 mkII also has a fairly flat hull bottom section, almost from the back > of the keel forward. I understand that it helps a lot to keep a good heel > angle to prevent pounding going upwind. But in short waves IT WILL BANG > whoever is at the helm. I'm even thinking about reinforcing the front section > of the hull laminating a "grid" from the inside because i think there is a > lack of support there and it flexes too much. I was able to notice the flex > last summer in the choppy conditions of the Northumberland strait. Any > comment on that project are welcomed. > > That said, the boat is fast for it's size and fairly stable downwind for an > old boat. I don't know if the flat section really helps but i did hit some > very good speed going downwind and surfing for a brief moment (not sustained > surfing) at a MAX speed of 14 knots!!! on the speedo, not GPS (was not > looking down!). that day the boat was averaging a speed over 8.5 regularly > surfing over 9 and 10 with rides over 11.5. I did saw a 14 for like a second > or two, i don't know what the GPS was showing... It was blowing over 30 with > a fairly big following sea. the sails where "tied" wing to wing, two reefs > and with my no.3 (110%) a bit furled and stabilized with a whisker pole. . > since the sails were "tied" with the boom secured too, and that my sails were > balanced for the conditions i was able to play the wind a little to > accelerate in the puffs and then point the bow down the waves. Very fun ride > but very stressful for my girlfriend and me too at some points. > > a friend following us with his CS 36 bent his boom that day after an > accidental jibe. his boat seemed harder to steer in those conditions and was > not "surfing" as much as we were. the CS is way heavier and has a very "V > shape" bow. > > Bruno Lachance > Bécassine, C&C 33 mkII > New-Richmond, Qc > > > > Date: Tue, 4 Nov 2014 10:02:56 -0400 > To: cscheaf...@comcast.net; cnc-list@cnc-list.com; jfriv...@us.ibm.com > Subject: Stus-List 34/36 flat area > From: cnc-list@cnc-list.com > > Lots of fast boats have a flat bottom from the keel forward.....I made a > short delivery (40 miles) on a J44 in heavy winds and seas on the > 'nose'......the boat pounded on every wave it hit. > > I don't think the the 34R is any different.....the same thing happened on a > delivery from Port Hawkesbury to Halifax with the wind and waves on the > nose.....that front flat section of the bottom does not push the water away > in those conditions.....at least it didn't for us.....both sailing and > motoring. So I am not sure what Rob Ball means when he says "it wouldn't > slam when sailing, or when heeled because the hull has a vee on either side > of the flat, so it acts like a keel when heeled. " > > We did a lot of spin runs racing the 34R.....the fastest I can recall we got > the boat going was about 10.2 knots on the GPS and that was with a 3/4 oz. > chute in about 25 knts true. > > Rob Abbott > AZURA > C&C 32 - 84 > Halifax, N.S. > > > > On 2014/11/03 8:01 PM, Chuck S via CnC-List wrote: > I once asked Rob Ball about that flat area of my 34R, because it would slam > when crossing a wave. He said that feature was proven to be fast in IOR > designs and even though the 1990 34/36R, 34/36+, 34/36XL series was designed > for IMS, he incorporated it into this hull. He told me it wouldn't slam when > sailing, or when heeled because the hull has a vee on either side of the > flat, so it acts like a keel when heeled. I've learned to avoid the slam by > sailing more, or motorsailing, or motoring thru chop or crossing waves at an > angle. I've since seen that flat section on many other brand racers. > > The newest racing sailboat designs (like C&C 30 and Redline 41) however have > eliptical cross sections, like a canoe, bow to stern. Have you seen the > chines on the Volvo Ocean 65's this year? > > > Chuck > Resolute > 1990 C&C 34R > Broad Creek, Magothy River, Md > > From: "CNC boat owners, cnc-list" <cnc-list@cnc-list.com> > To: "Robert Abbott" <robertabb...@eastlink.ca> > Cc: "CNC boat owners, cnc-list" <cnc-list@cnc-list.com> > Sent: Monday, November 3, 2014 5:16:04 PM > Subject: Re: Stus-List Surfing hulls > > HI, I meant the STEM.. so yes, between keel and the pointy end :-) > > > > Regards > > Francois Rivard > 1990 34+ "Take Five" > Lake Lanier, Georgia > > <ATT00001>Robert Abbott ---11/03/2014 05:05:13 PM---We raced a 34R > extensively......I recall the hull on this one to be flat from the leading > edge of k > > From: Robert Abbott <robertabb...@eastlink.ca> > To: Jean-Francois J Rivard/Atlanta/IBM@IBMUS, cnc-list@cnc-list.com > Date: 11/03/2014 05:05 PM > Subject: Surfing hulls > > > > We raced a 34R extensively......I recall the hull on this one to be flat from > the leading edge of keel forward to the bow.......not from the keel back to > the stern. > > I don't ever recall getting this 34R to surf.....now we rarely wound this > boat up to its full potential unless we had a John Roy on board for a race > and even then I don't recall surfing. > > Rob Abbott > AZURA > C&C 32 - 84 > Halifax, N.S. > > > > > > On 2014/11/03 12:21 PM, Jean-Francois J Rivard via CnC-List wrote: > > The Rob Ball designed 34+ / XL / R series have a flat surface on the bottom > between the leading edge of the keel and the stem. The folklore says it's > supposed to be a planing section to help support nose when running the Spin > and keep the bow from "diggin'in" / surf the backside of bigger waves.. > The waves on the lake are not big enough to surf / my spin is not quite ready > yet. I can't speak from experience. > > Perhaps Chuck S can comment on his experience with his 34 R surfing waves off > the coast of Atlantic City? > > I did miss an opportunity to test the fast stuff this saturday, winds were in > excess of 30 knots and the weather was gorgeous. I did not have a crew so I > watched-it from the dock as I was doing some needed topsides and decks > cleaning / waxing.. > > > -Francois Rivard > 1990 34+ "Take Five" > Lake Lanier, Georgia > > > > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go bottom of page > at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > > > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go bottom of page > at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > > > > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go bottom of page > at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > > > _______________________________________________ This List is provided by the > C&C Photo Album Email address: CnC-List@cnc-list.com To change your list > preferences, including unsubscribing -- go bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go bottom of page > at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >
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