the first pics you got were indeed a scaled moth sail, but in case you hadn't noticed I redid everything for the pics that were posted, so thats irrelevant.
The main point I made was about the flexing of the mast that is the result of it being unstayed. That point still stands and it is hardly irrelevant. You loose sail area that way and alot of people were inmediately turned off by the bend mast in my (Gareth) CAD drawing. But at least that one was realistic if not conservative be showing the maximum mast bending.
As for building an F12 in 100 hours, your dreaming,
Well I'm not getting into a pissing match with you here. Let me suffice by asking all the readers here about who will be seriously thinking about homebuilding this boat if it takes 500 hours or even more ?
Without homebuilding, how do we kick-start the class ?
As for the draggyness of hard chined hulls...your comparison is invalid cause they weren't hard chined and a boat's performance is always (no exceptions) the sum of the drag angles (read Marchaj)...under no circumstances does drag make you more resistant to slip or improve your leeward angle.
You seem intent on misunderstanding my comments.
Let me suffice in saying here that there are many boardless catamaran designs out there that don't perform badly at all. As a matter of fact, the much heralded 49-er high performance skiff (with a large daggerboard) is rated the same around a race course as that boardless Hobie 16 or Prindle 16, both of which have less upwind sailarea then the 49-er and don't even have a spinnaker.
Now you may explain to all of us here what causes this remarkable result !
I'll give everybody a hint, it isn't the result of well rounded keel lines.
Additionally, if the idea is to outperform the laser dinghy and other dinghies, who are all much more narrow and also WAAAAAY slower then 49-er, then the Hobie 16 and Prindle 16 daggerboardless character may well hint that the F12 may do very well in comparison without a daggerboard as well.
Wouter
