Geodesic Airolite Boat with a twist
Old Nick says:
before you get past your ankle there ;-) Sorry. Don't get ya. Reference to how far your foot may have travelled into your mouth.... Nothing personal. ;-) Steve |
Geodesic Airolite Boat with a twist
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Geodesic Airolite Boat with a twist
Old Nick says:
hmmmm...I would be careful on the Web. "nothing personal" is easy for _you_ to decide when you say it, smiley or not. G I know.... Believe me, I know. ;-))) And thanks for correcting me. De nada. I once got to the "up to my knee" stage before realising what was going on. Not a pretty sight, or feeling. Steve "size 15" |
Geodesic Airolite Boat with a twist
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Geodesic Airolite Boat with a twist
Old Nick says:
Ah! Yes. My best one was here, where they started talking about using windmill on a boat to sail straight upwind. After I was allowed to make a complete idiot of myself for a while, I was informed to treat it as being like a boat tacking constantly. I slunk away. But I DID come back and admit my error! Heehee - I remember that one. A classic. ;-) Steve |
Geodesic Airolite Boat with a twist
"Old Nick" wrote in message ... My feelings: As has been saidKevlar would be a difficult material to use to make ribs as you suggest. Try epoxy/glass. I cannot see any troubles. Although the foam is softer than wood, the glass (kevlar) skin is what makes a foam/glass frame stiff, and stiff it would be. Make the "walls" heavier than the "roof (inner) and "floor" (outer) skins. make the floor heavoer than the roof. I think this is where people often mistake stiffness versus strength. Plain vanilla fiberglass is about the same stiffness as wood. In other words, make a 1 inch by one inch by 12 inch stick of wood, clamp it onto your workbench, and put a five pound weight on the end. It bends about what, a half inch? Make a 1 inch by one inch by 12 inch stick of fiberglass, put the same five pound weight on the end, and it will bend about a half inch as well. Now the fiberglass will support more weight before it breaks, but it's also about three times heavier. Give me three times more wood to use, and if I can make the beam a one by three, then I can approach the load strength of the glass. Wood is good stuff for resisting bending. I call it a naturally occuring unidirectional carbon fiber reinforcement ;=) I could go further into the engineering analysis and try to come up with some numbers for equivalent stiffness of glass or kevlar cored stringers. They'll either need to be larger in section or solid glass. But in the end it sure seems like it's going to be a lot of extra labor to build it that way, when the time could be used to find some decent regional straight grained boatbuilding lumber. Just MHO. Assuming that decent boatbuilding wood really is too difficult to find, then I do like your idear of cutting kerfs on the wood stringers, framing and skinning the boat, then filling the kerfs with epoxy/wood dust and covering the kerfed face with glass. Matt |
Geodesic Airolite Boat with a twist
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Geodesic Airolite Boat with a twist
Old Nick says:
*******! Definitely, by nature. Not by birth - some of us have to WORK to achieve that status. ;-) |
Geodesic Airolite Boat with a twist
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