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> > wrote: > > > What do Mars Keels have to say? > > Sent from Mail for Windows > > From: G Donald Wagner via CnC-List > Sent: September 25, 2022 7:30 PM > To: cnc-list@cnc-list.com > Cc: j...@dellabarba.com; G Donald Wagner > 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> > To: 'Stus-List' <cnc-list@cnc-list.com> > Cc: 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> > Sent: Sunday, September 25, 2022 1:24 PM > To: cnc-list@cnc-list.com > Cc: Leeward Rail <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. >
