FWIW, I looked into splitting the backstay for my 34R and determined I would forgoe using U Bolts and substitute a length of Stainless Tee section from McMaster Carr. That would allow me to shape the Tee bar into a proper tang with one hole for the backstay and six to eight bolts through the transom. It's easy to beef up the transom area by adding layers of glass inside and spread the load further using a large aluminum backing plate. When I priced the 10,000# rated pulley needed for the backstay and faced hiring a rigger to shorten the backstay, I put the project into a folder marked, "If I ever win the lottery".
The point of all this is to encourage those who want the boat. Reinforcing is a nice winter project; remove the U-bolts, apply layers of glass, add backing plates, make it better. Chuck Resolute1990 C&C 34R Broad Creek, Magothy River, Md > On January 4, 2017 at 7:04 PM Josh Muckley via CnC-List > <cnc-list@cnc-list.com> wrote: > > Follow the link below. Find a transom picture - there are many. The > humps on port and stbd top corners are the attachment points for the > hydraulics. On Michael Cotton's boat, Blue Pearl, there was only a single > hydraulic piston which attached on the port side. This piston pulled down > against a turning block attached to the backstay which transfered half the > load to the starboard side. The humps have a horizontal portion where a > standard u-bolt extends through. It is hard to tell but the load > distribution has relatively limited surface area. Even if it had (and it > doesn't) a custom strongback designed to fully engage the horizontal section > of the hump, it is still a considerable amount of point loading. I've > visualized all manner of correction for this perceived weakness but continue > to fail to take action. > > It is my belief that while a better design is/was possible, only one boat > has had a failure. Evaluating that single known failure on that boat shows > that it is also possibly the only boat with a signal hydraulic ram. Maybe a > hangup in the turning block caused an unequal distribution of the load > resulting in the failure. > > I watch mine and consider pursuing the reinforcement from time to time. > > https://plus.google.com/117078816966198897128/posts/2qzHVRgqeVz > https://plus.google.com/117078816966198897128/posts/2qzHVRgqeVz > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > On Jan 4, 2017 2:21 PM, "Mark Baldridge via CnC-List" > <cnc-list@cnc-list.com mailto:cnc-list@cnc-list.com > wrote: > > > > Tom, > > > > I looked at the boat about when the photos were taken and prior to > > the listing going up. The backstay is currently disconnected while the > > hydraulics are out being rebuilt. They are currently tied off to the stern > > pulpit. If you look close at the main picture you can see attachment point > > next to where the hydraulic line exits the deck. > > > > I assume that this is standard. > > > > Thanks, > > Mark > > > > On 1/4/2017 1:55 PM, Tom Buscaglia via CnC-List wrote: > > > > > > > Hey Mark > > > > > > I took a look at Ogopogo, the 37+/4- in Fairhope,online. > > > Since this string started with questions about the back stay on these > > > boats, I was wondering about the set up on the one you're looking at. > > > They seems to have been relocate inboard from their original location on > > > the transom. I'm curious as to why this was done. Any idea or > > > explanation given? > > > > > > GL with the purchase...I am a huge fan of the 37+/40! > > > > > > Tom B > > > > > > > > ---------------------------- > > > > Message: 2 > > Date: Tue, 3 Jan 2017 21:17:34 -0500 > > From: Mark Baldridge <jmbaldri...@gmail.com> > > mailto:jmbaldri...@gmail.com > > To: cnc-list@cnc-list.com mailto:cnc-list@cnc-list.com > > Subject: Re: Stus-List C&C 37+ Backstay > > Inspection/Improvements > > Message-ID: > > <6afc5ca3-ac75-7fc3-a725-64d0a88e0...@gmail.com> > > mailto:6afc5ca3-ac75-7fc3-a725-64d0a88e0...@gmail.com > > Content-Type: text/plain; charset="windows-1252"; > > Format="flowed" > > > > Good luck Bruce! > > > > Our survey is the 10th of January on the 1989 37/40+ out of > > Fairhope, > > AL. hull #30 (ex Dakota). Hoping for a good pass as well! > > > > Mark Baldridge > > ~~~~~~~~~~~~~~~~~~~~~~_/) > > '75 C&C35 MKII "The Edge" > > Surf City, NC > > > > > > Tom Buscaglia > SV Alera > 1990 C&C 37+/40 > Vashon Island WA > (206) 463-9200 > www.sv-alera.com > http://www.sv-alera.com/ > > > > _______________________________________________ > > This list is supported by the generous donations of our members. > If you wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > > _______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray https://www.paypal.me/stumurray All Contributions are greatly appreciated! _______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
_______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
