You are correct.

But while this issue has not been discussed publically yet (except for the traveller setup) as solution is worked out anyway.

There are two versions : one uses a kicking strap (non-adjustable) and the other uses a ram vang (non-adjustable)

These have a use upwind as well. By preventing the mast from bending back too far when the mainsheet is released the sail should tack better in lighter winds. Additionally this limiter prevents the boom from rising beyond a certain level and thus reduces twist when the sail is fully boomed out.

But for most course John is right the F12 will have a traveller system, one that only costs 37 Euro's in DE-LUXE version and 4.5 Euro's in the cheap but effective setup. this will take of most needs All the way up to reaching a little deeper then a beam reach.

It is many more things but I'm not going into detail on this here and now.

But I can assure the readers here that teh basic idea is to give the F12 significantly more performance then the alternatives out there (like the wave) by providing much better sail control. The only limit to this is cost but even the DELUXE version costs less then 200 bucks overall. While providing full control in light, medium and heavy winds with draft control devided in lower halve and top halve and twist control for both the light and heavy winds.

Pretty much the design goal I had was this :



Light winds :

relatively shallow draft in the sail with alot of twist along the leech.

medium winds :

10-15 % draft in the sail with a tight leach. Here the mainsheet mostly controls draft in the sail and very little twist.

heavy winds :

shallow draft in bottom part of sail with almost no draft in the top and a leech that is twisting off. But with the behaviour that releasing mainsheet first increases twist and hardly any draft. If possible releasing the mainsheet should first increase draft then allow the boom to swing out and only in the later stages allow the draft to increase.


I think I got that worked out to a large extend.

Wouter