Yeah thats next I remember your discussion on toyote.
Todd
--- In harryproa@yahoogroups.com.au, Rick Willoughby <rickwill@...> wrote:
>
> Todd
> You should test a dagger board in the middle of the hull with the two
> small rudders. Give the board a slight camber so it is lifting to
> windward.
>
> Another observation I mentioned with the drive test is that the boat
> crabbed sideways quite easily. A decent dagger board would prevent
> this.
>
> Rick
> On 07/06/2011, at 6:09 AM, tsstproa wrote:
>
> > Development of Proa Squared along with boards tested.
> >
> > http://www.youtube.com/watch?v=DG1LuSq_CLg
> >
> > In the video the proa squared free sailing version worked fine with
> > the single 4 1/2 sq inch with about 3- 3 1/2 sqinches of board
> > submerged. It actually tending to bear off the wind more than I
> > expected with this single board down. So the bigger boards where
> > not tested in single board down configuration. I proceeded in using
> > the two of the smallest boards for two board down sailing. What I
> > experienced was heavy weather helm no matter how hard over boards
> > were held over they were over powered by the sail the model was
> > uncontrollable shunting, sailing in a straight line etc...Lots of
> > finesse required and even then very frustrating. So I jumped up to
> > the second 1 1/4''x 5'' larger retangular board wha la great
> > success balanced sailing and shunting just a touch of weather helm
> > coming out of a shunt . On on the hard though hands free sailing
> > straight.
> >
> > With this design of craft shunting happens so fast the advantage of
> > leaving both boards down is quit significant maintaining control
> > and predictability allows me to sail faster not the other way
> > around fight helm to maintain control.
> >
> > enjoy
> > Todd
> >
> >
> >
>
> Rick Willoughby
> rickwill@...
> 03 9796 2415
> 0419 104 821
>