"What if the beams were made larger? Say 1 meter by 1.2 or so? and put the beds in the beams like the trimarans do?
Larger beams could be stronger and comparatively lighter."
Interesting idea, but they're still not large enough for doubles on the one hand, and the weight strength is still going to be bound by being able to walk on the roof, or lay within without deformation or damage. In other words their are practical considerations to how thin and how light panels and beams can go. There must be a point where you cant practically make a beam larger and save weight, because a minimum panel thickness has been reached.
I would concede though, that joining the beams and bunk enclosures to make a bunk beam combination at the hull would be worthwhile, and some diagonal fillets to the lee side from the flanges of the beam to the back of the house. In this way perhaps a lighter 3 sided beam can be engineered at the weather hull end with a top and bottom flange, and web situated on one side. But even here the beams depth of some 800mm seems improperly situated as a weight saving gesture.
Interesting idea, but they're still not large enough for doubles on the one hand, and the weight strength is still going to be bound by being able to walk on the roof, or lay within without deformation or damage. In other words their are practical considerations to how thin and how light panels and beams can go. There must be a point where you cant practically make a beam larger and save weight, because a minimum panel thickness has been reached.
I would concede though, that joining the beams and bunk enclosures to make a bunk beam combination at the hull would be worthwhile, and some diagonal fillets to the lee side from the flanges of the beam to the back of the house. In this way perhaps a lighter 3 sided beam can be engineered at the weather hull end with a top and bottom flange, and web situated on one side. But even here the beams depth of some 800mm seems improperly situated as a weight saving gesture.
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Posted by: robriley@rocketmail.com
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