In my 33-2 I eliminated the one creak I had by cutting the overhead liner out of the hanging locker interior and tabbing the bulkheads directly to the deck after filling the gaps with glass-filled epoxy, and then creating a nice raduised fillet. I used epoxy and 2 layers (iirc) of biaxial stitch mat. Other 33-2s seem to have been built this way, while mine had the bulkhead simply fitted into a groove in the overhead liner. The 1985-6 33-2, and I presume others of the era (35-3, 41?) had the hull and deck fastened with large blobs of polyester putty in some places. This had fractured in the hanging locker area, I cut it out and packed the gap with epoxy/chopped glass to reinforce. I also tabbed the liner to the hull under the v-Berth where the attachment was poorly done at the factory and had fractured. Same process but with a limber hole incorporated. Finally, a poor repair was cut out and replaced where the port-side bulkhead meets the hull, same process. In each case this reinforcement was added inside a locker, so no cosmetic concern. (Upgrade potentially) FWIW I wouldn’t hesitate to do this on any production boat, but would only make the effort if attaching the bulkhead directly to the hull or deck.
Dave Sent from my iPad > On Jun 10, 2020, at 12:07 PM, Bailey White <bail...@gmail.com> wrote: > > Has anyone added material to tie the bulkheads to the liners for those > earlier boats? I wasn't sure if the liner could take it or if some work > would need to be done to grind out the liner and fiberglass directly to the > hull laminate, which would be more involved and error prone. > > ---------- Forwarded message ---------- > From: Rob Ball <r...@edsonintl.com> > To: Shawn Wright <shawngwri...@gmail.com>, "cnc-list@cnc-list.com" > <cnc-list@cnc-list.com> > Cc: > Bcc: > Date: Wed, 10 Jun 2020 12:39:15 +0000 > Subject: Re: Stus-List Rob Ball comment on 41 "robustness" > Earlier C&C’s had the bulkheads ‘floating’ in the headliner groove, and as we > got into larger sizes (bigger loads) those tie downs were the solution. > > On the C&C 40, there were a lot of warranty claims for those leaks, and > eventually it was decided to stiffen up things to prevent this. The first > boat was the new C&C 35 and the bulkheads were ‘tabbed’ to the deck – much > stiffer . . . . BUT . . . . it meant that the headliner, which is installed > on the deck when it’s upside down, had to leave space for the tabbing after > the deck is placed on the hull. And then those spaces had to be covered up > with separate pieces to blend with the headliner after the tabbing . . . . > Much more labor and cost . . . > > But – a much stiffer boat – the sailmakers loved the straighter headstay . . > > Victory by the designer over the accountants . . . . > > The downside, other than cost is that when you hit a rock – the damage is > more extensive, because the boat is now actually more brittle . . . > > > > Rob Ball C&C 34
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