To your point about hydraulic backstay adjusters - when last boat shopping I learned to sight along the topsides and look for hull buckling in the area of the shrouds - some was quite pronounced. This was an issue with several late ‘60s/early 70s boats I looked at, and there seemed to be a strong correlation with the use of the hydraulic adjuster. I would also expect these boats did not have the mast/deck hooks being discussed.
You mention deck tabbing also - on my 33-2 hull #61, (mar ‘85) the hanging locker bulkheads were not tanned to the deck, however sometime after that, it seems to have been done at the factory. I tabbed mine and the boat is noticeably quieter and the deck stiffer. Same generation and similar build to the 35-3. For anyone interested: https://cncwindstar.blogspot.com/2019/07/bulkheaddeck-reinforcement-at-hanging.html?m=1 On the mast hooks - what was not mentioned is that the alignment of the mast holes and final resting point of the hooks can be fine-tuned by elevating the mast with the addition of shims in the mast step. Dave (And Rob - your expertise and participation in this group is greatly appreciated - thanks!) Sent from my iPhone > On Aug 12, 2020, at 9:59 AM, Rob Ball <r...@edsonintl.com> wrote: > > > Bill has it right . . . . . The shrouds and mast compression are the worry . > . . > On serious race boats (without a bulkhead at the mast) we had a vertical rod > beside the mast and even a diagonal strut from the mast step to the shrouds > to counteract the load. > I can’t remember the original 35 in this regard, but we didn’t have big > hydraulic backstays back then either . . . . . so I worry about the 35 . . . > . > On the other hand, it has survived this long . . . . so . . . . . > After the new 35 (Mk III) we tabbed the bulkheads to the deck – which does > the job, but before that boat production, the deck just floated above the > bulkheads . . . . > Rob Ball > C&C 34 > Escapade > >
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