I am safe from that, the deepest the water ever freezes is a couple of inches down from the surface and even that is rare. Plus unless the power goes out the heat in the cabin is set for about 50F when I am not around. All the live-aboards string fresh water houses around the marina on the bottom and pull them up when they need water, they never freeze 6 feet underwater. I have seen wet rudders split on the hard when we have extra-cold winters. If I ever sat on the hard in winter I might drill a drain hole in the rudder or take it home and put it inside somewhere.
Joe Della Barba Coquina From: Dave S via CnC-List <cnc-list@cnc-list.com> Sent: Tuesday, September 27, 2022 9:31 AM To: kenhea...@gmail.com; C&c Stus List <cnc-list@cnc-list.com> Cc: Dave S <syerd...@gmail.com> Subject: [EXTERNAL] Stus-List Re: C&C 35 MK I Keel Bolts Interesting indeed - especially the part about freeze/thaw keel casting failures. he attributes these to bolt deterioration, but I expect that leaking bedding, imperfect casting, or lose bolts may also contribute. Here’s what casting failure looks like: https://cncwindstar.blogspot.com/2016/09/mid-1980s-c-keel-issues.html?m=1 Dave Syer 33-2 Sent from my iPhone On Sep 27, 2022, at 7:17 AM, Ken Heaton <kenhea...@gmail.com<mailto:kenhea...@gmail.com>> wrote: An interesting read from MarsKeel Technology, Keel Maintenance By: William Souter https://46in1h3fzpsy3uz5el3ytm6p-wpengine.netdna-ssl.com/wp-content/uploads/2019/12/Keel_Repair_White_Paper.pdf Ken H. On Mon, 26 Sept 2022 at 16:29, Dave S via CnC-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote: I’ve been following this thread a little bit, And I can’t help but wonder if the lead doesn’t creep a tiny bit over time. There’s a lot of compression involved. It wouldn’t take much to see a reduction in bolt torque. Dave 33-2 Sent from my iPhone On Sep 26, 2022, at 2:27 PM, John Irvin via CnC-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote: What do Mars Keels have to say? Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows From: G Donald Wagner via CnC-List<mailto:cnc-list@cnc-list.com> Sent: September 25, 2022 7:30 PM To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com> Cc: j...@dellabarba.com<mailto:j...@dellabarba.com>; G Donald Wagner<mailto:don.wag...@verizon.net> Subject: Stus-List Re: C&C 35 MK I Keel Bolts I believe our C&C yachts use lead doped with a percent of Antimony. The Antimony adds strength, hardness, oxidation resistance, and aids in the flow for the casting process. It not like pure lead, and the properties are not the same. maybe we have some metallurgists in the group, and they can comment ? Don Wagner C&C 41 CB "Der Baron" -----Original Message----- From: Joe Della Barba via CnC-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> To: 'Stus-List' <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> Cc: j...@dellabarba.com<mailto:j...@dellabarba.com> Sent: Sun, Sep 25, 2022 2:32 pm Subject: Stus-List Re: C&C 35 MK I Keel Bolts I hadn’t thought of that! The keel is slowly getting shorter. If I keep the boat another 50 years I won’t be aground at extra-low tide! Joe Della Barba Coquina C&C 35 MK I Kent Island MD USA From: Leeward Rail via CnC-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> Sent: Sunday, September 25, 2022 1:24 PM To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com> Cc: Leeward Rail <leeward_r...@hotmail.com<mailto:leeward_r...@hotmail.com>> Subject: Stus-List Re: C&C 35 MK I Keel Bolts The keel bolts are in lead. Lead is soft and eventually they would pull upwards slightly. I would assume that is why. I have been planning to contact MARSKEEL and get some pro info.
