jfm
Well-Known Member
That begs the question why the designer put those huge supports in the cockpit if, only a few feet forward there are support columns either side of the patio door? The flybridge overhang would not require anything much in the way of support if the flybridge was fully supported by columns either side of the patio door. I can't see that those window mullions in the pic provide much in the way of support to the flybridge; they are quite severely angled. Difficult to understand the structure unless you poke about the boat and unscrew some panels. Anyway, when I get to SIBS, I shall jump up and down on the forward part of the flybridge and see how it flexes, if at all
But the fly overhang has dining table aimed at 6 pax, which means it needs to take say 700kilos+ margin on the back end. Quite different from previous sealines that have had just a couple of sun matresses on the cantilevered part. Even if there's support either side of patio door, which there is, 700kg or whatever cantilevered still needs a spaceframe metal structure, as installed by loads of boatbuilders at much cost. It's that cost and complexity that Sealine have (sensibly, for a budget boat) avoided by using the black aft struts
The front window mullions are massive. If they're 4mm wall thickness st/steel, which i bet they are, they'll provide loads of support even angled. I simply cant believe there is any forward cantilevering (from the patio doors forward, or from the aft black struts) within the fly deck support thinking. You'd get the strength just about, but never the stiffness. The front support to the fly deck has got to be those mullions (and the glass, if bonded and suitably specced)
But yes, let's poke around at SIBS. I'll bring a leccy screwdriver to remove any panels that need removing