SO 35/37 v SO36i construction differences

[Quiddle]

Hi
I'm aware that the deck on the 36i generation of boats is injection moulded but have also heard that the hull changed to 'eggbox'construction .
I'm not entirely sure what this means. My guess is that the 35 & 37 had one piece hulls with stiffeners glassed in whereas the 36i boats have a simple shell for the outer hull, stiffened by a separate lining bonded to the hull. Is this correct? Is there any significant difference in hull stiffness and strength between the two?
Thanks

Andy

[zaphod]

Yes the "i" generations is when they went away from the traditional glassed in stringers and moved to a structural grid liner glued into the hull. On the smaller models like the 36i and 39i it is a structural pan, whereas on the larger models the skin between the structural members is cut away so that the structure can be glassed to the hull.

The big criticism is that the structural pan boats can be more expensive to repair after a hard grounding because it is difficult to determine where the structure may have separated from the hull.

I have seen no evidence that the new technique is any better or worse than the old school methods from a weight or structural standpoint.

[Quiddle]

Thanks. I 'feel', and wouldn't put it stronger than that, that stiffening integral to the hull is more robust than the bonding of a matrix when subjected to lateral stresses from grounding.Plus there is no hidden spaces for water to accumulate.