Thank you! I will add an extra layer to the exterior to achieve the 3.0mm skin thickness.
I don't think that the WR will end up any stiffer than the cloth, provided the thickness of the skin ends up the same. I believe the fibers used...
An update for anyone interested -- I received another sheet of 3/4" H60, and also some cloth samples. The 18 oz (610g/m2) cloth and WR seem...
@KD8NPB there is no floor -- the "floor" of the cockpit is just the inside of the hull. If I ever do a floor though, I will be using some of that...
Very helpful info, thank you! The company I've been purchasing cloth through has a WR that works out to around 610 g/m2, and I think that the WR...
I was under the impression that epoxy was significantly more water-tight than poly resin. The print through I am hoping can be mitigated by a...
Thank you again -- I think that's a good path forward. Are you accounting for any strength from the CSM 450, or just thickness? Or is it purely...
@rxcomposite thank you very much! I don't mind using the metric system at all. I agree that adding a frame and a floor would be the best route,...
50 kN/mm^2 seems tremendous, unless I'm misunderstanding something. Some additional info: The total weight of the hull is probably around 325...
Definitely an option, but draft is very important for this boat. The primary use is fly fishing in shallow saltwater flats, typically one guide...
The span is midship, and starts to round towards the fwd bulkhead so most of the flexing is slightly aft. 32mph may be optimistic - the best I've...
The unsupported panel is approx 48" x 90" between the chines and bulkheads. Maximum speed is around 32mph, LWL is I believe around 180", but I...
I figure short of adding stringers, the span/width is constant. The Modulus of both the core and the skin is not going to change either (assuming...
@rxcomposite @fallguy thank you both very much for your advice! This has been very helpful. Also, thank you for the heads up on the biax -- I...
@fallguy thank you, I was actually just looking over those equations! I should have said biggest "bang for my buck" rather than biggest...
Thank you both for the insight. I talked with the designer before I made the deviations -- the H80 was selected as the core mostly due to...
To add - the skiff was "strip built" over stations using 2" wide strips of basically H60. Then glassed, pulled off the stations, flipped, and the...
Plans from the designer called out 3/4 H80 with 3 layers of 10 oz inside and out. Currently laid 0-90, aside from the tape at the bulkheads. The...
I built a fairly small skiff (17.5' LOA, 30hp) and have been testing over the last few months. There is no "floor" and no stringer system -- the...
I might have access to enough resin to do my whole skiff, but want to make sure that it isn't going to give me any issues. Has anyone used resins...
