Hi; sounds like a cool project. As I understand you correctly, you intend to perform the lamination work yourself? Thats more physical labor than...
Here is a vid about cutting 3d foam shapes use 2d templates. Idea would be the same as for this wing; except the templates would be entire...
Or how about this: fit blocks of foam between your 2d templates. Tack the blocks to the templates with some drops of CA glue, but properly glue...
Simplicity of construction. Just stacking foam blocks between 2d laser cut templates, trimming the foam in place with a hot wire, and building up...
Note that these boat building foams have a shear modulus in the range of 20MPa. The in plane shear modulus of glass composite is more than 40GPa;...
Is the skin bond weaker than the underlying foam itself? Or does it just rip at the interface when peeled off because the stress concentrated...
Dejay: Finally someone mentioning the fact that XPS comes in all kinds of grades. The densest XPS marketed for construction I can find is 45kg/m3,...
So many conflicting opinions on the matter. I dont have any practical experience, but here is what Id say based on a theoretical materials /...
Well if I can move this thing at 8 knots im pretty happy, and under 5 knots hull shape does not matter much anyway. Id like to analyse this in...
Made a little sketch to get a sense of proportions. This is 24m LOA, 5m wide, 5.5 from bottom to top, with 20cm thick walls throughout. It has...
Keeping a compact and thus finned radiator submerged in non-pool-water from clogging up is a rather high tech endeavour. Instead of a compact...
Well no arguing taste I suppose :P. Only thinking about using it on the bottom right now, but you could do a thin gauge on top as well. Above...
Typical stainless grades dont do that well in seawater. Duplex steel is used uncoated in sea water pipes, pumps, heat exchangers, and the like,...
As a reference-sanity check for the cost of metal-plating the hull; a 1mm 300-series stainless steel roof of a 100m2 or so costs about $10k as...
Not going to bother antifouling regularly in case the thing is sitting still for years. I guess id only bother as prep for longer trips. m3 5200...
Wrt adhesives; m3 5200 was one of the first things that came to mind and ive heard of it being used to permanently stick other things to hulls....
Dunno; if I can pay a few k extra, and for that money I literally never have to worry about painting even after dragging it over a bunch of rocks,...
It does not need to move often. The cost of maintaining a large vessel that can move under its own power legally, is very much prohibitive over...
Looking at the stress/strain curve for high density XPS and PVC they really are not that different. They both get into plastic deformation at a...
Yeah, something like that. I think almost full width on the second floor, but a little fore and aft deck to keep your ropes and cleats and stuff....
