Nick,

I'm very interest in how this way of building a hull can be translated in relatively easy homebuilding of F12 hulls. For these hulls we don't need much. Just large rounded edges on the keel, the rest may well remain flat panels bended in one plane only (multichine).

I'm not even sure we need vacuum bagging for the F12 hull. The hull is very small and it only need it to be 17 kg or less to get at the overall weight of 60 kg ready to sail. In my current design the bow is not loaded up at all and there are no daggerboards or skegs that would require local reinforcements. Pretty much what I'm looking for is a Arafure cadet hull but with large rounded corners on the panel intersection lines at the keel.

The unstayed rig is supported by compression rods that go back to a point on the inner gunwhale somewhere between the mainbeam and rearbeam. So that, together with the beam landings and the sterns would be the only points that need to take some loading. The compression rods will be loaded up with some 600 kg (same as the bridle points on the F16)

How do you feel your building method would suit being used for F12 hulls in this respect.

Wouter