I am actually building new beams for my Nacra 5.5 with 10.5ft wide, 100x3mm beams, F18 rig and daggerboards.
![[Linked Image]](http://revintage.se/wide.JPG)
Lars, are sure that these beams without inner enforcement will do the job? The same applies to the attachment on the hulls.
10 feet width is considerable.