John, I have not experienced what you describe. However, I have strengthened hull sections before.
I had a job to strengthen the aft hull section of a Wavelength 24 once. The aft underbodies of these boats have a large unsupported area directly under the cockpit. At speed, the hull tends to deform in a slightly concave way. I installed 3-4 stringers on the inside of the hull to stiffen that area. I used preformed foam stringers that I laid a few layers of epoxy glass over. < https://www.boatbuildercentral.com/product/prisma-composites-preform-beams/?attribute_select=TR-1530+4FT&gclid=CjwKCAiAwc-dBhA7EiwAxPRylAj618O0qTKblkwA5yoIep-I0JvolmBYL-_MDcbZuqZ57Kx9afVpZxoCeJUQAvD_BwE > I also repaired some stringers on the inside of the hull of a NACRA catamaran. In this case, the stringers were cardboard tubes cut lengthwise and glassed over. Two similar jobs. A foam or cardboard shape simply glassed over. Perhaps you could do something similar. If you are tempted to DIY foam stringers, not all foam is epoxy resistant. Use the wrong stuff and you'll end up with a puddle instead of a structural member. -- Dennis C. Touche' 35-1 #83 Mandeville, LA On Tue, Jan 3, 2023 at 11:58 AM John McCrea via CnC-List < cnc-list@cnc-list.com> wrote: > All, > > > > On the port side of my cockpit, I get a decent amount of flexing when I > walk on it. In the area between the bilge locker and propane locker. I > borrowed a moisture meter from a surveyor friend, and it is dry. Also, no > crazing or anything of that nature. I am wondering if I have some > delamination on either side and will tap with a hammer to see if that is > the case. Was also thinking that maybe by adding a glassed in stringer > underneath the cockpit that it might help provide some strength. Anyone > have a similar issue in the past? Thanks, and Happy 2023. > > > > John McCrea > > Talisman > > 1979 36-1 > > Mystic, CT > Please show your appreciation for this list and the Photo Album site and > help me pay the associated bills. Make a contribution at: > https://www.paypal.me/stumurray > Thanks for your help. > Stu >
Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at: https://www.paypal.me/stumurray Thanks for your help. Stu
