Luc,
That's good to hear. I would have assumed that it would cost a
bit more, but you could easily argue that it's worth a premium. If
it's the same, so much the better.
Two questions:
- Camber. Do you know anything about how the camber is
determined? I'd love to be able to adjust just a single sheet
during most wind shifts.
- Bidirectionality. Do you think it would work in both
directions? It looks like the mast has to rotate in order keep the
sails shape, so my guess is that it would work on a proa if combined
with a sturdy boom fixed to the mast (can't count on the mainsheet
when running).
I'd love to see one of these in person.
- Mike
It may be interesting to know that Omer assured me that a sail would cost about as much as a balestron. Last summer, a tour of the French Mediterranean ports was canceled as the boat stayed in an Italian port for further modifications to the sail. Luc
--- In harryproa@yahoogroups.com.au, Mike Crawford wrote:
>
> Jerry,
>
> Thanks for the link. This is a definite improvement over the previous
> generation Omer wing sail, particularly since it's one sail instead of
> three panels. Very nice demos of the sailing and raising/lowering/reefing.
>
> However, I can't find any information on it. I'm particularly
> interested in how the camber is controlled. The camber on the old Omer
> sail had to be set manually every time the sails angle of attack
> changed, which was one of the things that eliminated it from my
> consideration. The video makes the camber appear to be either automatic
> or largely automatic, but it's tough to tell with that brief animation
> in the middle.
>
> What inspires me most is seeing the sail work. I'm still a fan of the
> swingwing junk rig, and since I was pondering flexible rear sections and
> a rotating boom (I know I'm not the only one), it's great to see a
> version of this in action.
>
> Looking forward to more information when Onesails posts it.
>
> - Mike
>
>
>
>
>
> Jerry Barth wrote:
> >
> >
> > Rob,
> >
> > I think you have seen this already:
> >
> > http://www.onesails.com/wingsails.php
> >
> > My question is would the round section mast be easier/cheaper to build
> > than the normal D section like you have been doing? Notice the
> > diameter is the same all the way up, could you make this by going over
> > a pvc pipe mandrel or such? I think it would be hard to keep the
> > carbon in line though. Maybe an open mold would be better?
> >
> > Thanks,
> >
> > Jerry Barth
> >
>