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New ribless Dyna rig for square harry/ slamtacker   Message List  
Reply | Forward Message #4299 of 6625 |
Re: New ribless Dyna rig for square harry/ slamtacker

-Interesting the way they take off. Impressive
Robert-- In harryproa@..., "tsstproa" <bitme1234@...>
wrote:
>
> I noticed you said if one were to build full size. I don't no the
> exact origin of the dyna rig. I think it was a couple of german guys
> in the 50's not sure though. Also not sure how there prototypes
> evolved . But going off of what I seen on the maltese falcon with ribs
> being attached to mast and mast rotatating Built my first dyna that
> same way.
>
> Now for me and having experimented with both Bolger rig and Dyna. I'm
> thinking of a full size TSST sail 100sqft to start of my own design
> with no battens or spars. Similiar to the ribless dyna but with cut
> section enterlocking. Using performed rigid sections of sail attached
> to mast that can be reefed. Theres alot of room for details as you can
> see.
>
> Here's another clip close to full emersion of leeward hull without
> capsize or sudden stall just balance and foward drive with descent
> speed. Model only weighs 16oz. Thats sailing weight as you see on the
> water. Also hulls are flat bottom. I think I put the beam hung rudders
> to close to leehull. I see a wave forming next to rudder on hull .
> Looks like it could be from the compressed water flowing through when
> at speed due to limited space between the rudder and hull.
>
> http://www.youtube.com/watch?v=QplwYbQJz18
>
> Todd
>
>
>
> --- In harryproa@..., "hardystein2004"
> <hardystein2004@> wrote:
>
> >
> > Wow Todd ! Amazing.
> >
> > If one was to build a real full size version of the Dyna rig ,
> > would you need parrels on the battens , or would it be more like the
> > bolger rig , where the battens are not attached to the mast ?
> >
>





Tue Sep 2, 2008 10:12 am

cateran1949
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Message #4299 of 6625 |
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Put a new ribless dyna on square harry/ slamtacker and tried new symmetrical boards mounted in beams. Seems fast and responsive but with a little more weather...
tsstproa
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Sep 1, 2008
8:04 pm

... Wow Todd ! Amazing. If one was to build a real full size version of the Dyna rig , would you need parrels on the battens , or would it be more like the ...
hardystein2004
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Sep 2, 2008
12:28 am

I noticed you said if one were to build full size. I don't no the exact origin of the dyna rig. I think it was a couple of german guys in the 50's not sure...
tsstproa
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Sep 2, 2008
5:39 am

... WOOHOO ! That little boat was smoking !....:-) Wow , I think your`e onto something. I think it`s likely that at such speeds , as you say , the rudder may ...
hardystein2004
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Sep 2, 2008
6:14 am

... would ... Luff tension is cruicial in gaining performance from the dyna. I think luff tension is more important the further away from the mast it gets in...
tsstproa
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Sep 2, 2008
3:40 pm

... Thank you for your reply Todd. Yes , about luff tension , it`s what I thought too.Interesting , that the model of the ribbed sail is quilting / stretching...
hardystein2004
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Sep 2, 2008
9:39 pm

-Interesting the way they take off. Impressive Robert-- In harryproa@..., "tsstproa" <bitme1234@...>...
Robert
cateran1949
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Sep 2, 2008
10:12 am

Todd, I dont know what you have in mind, but consider a batch of rigid thin foil secrions that slide down behind each other to reef, Not sure how it would be...
Peter Southwood
pbsouthwood
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Sep 2, 2008
6:34 pm

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