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 Post subject: Sroka testing new shapes
PostPosted: Sun Jan 31, 2010 6:09 pm 
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Hi guys,

Bruno sroka has been spotted in hawai testing new boards.


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 Post subject: Re: Sroka testing new Aguera shapes
PostPosted: Sun Jan 31, 2010 11:34 pm 
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interesting, 421 bar?


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 Post subject: Re: Sroka testing new Aguera shapes
PostPosted: Mon Feb 01, 2010 2:01 am 
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Interesting bar setup. Its a new bar but it's set up with the old school bow pully. The realy interesting thing is the second outside line coming out paralel from the pully. The old cab convertalbe bars didn't use this setup. Any ideas as to how this would work?


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 Post subject: Re: Sroka testing new Aguera shapes
PostPosted: Mon Feb 01, 2010 4:09 pm 
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Does the second rear line go all the way up to the kite, and then, around a pulley? Or just part-way up the to the kite, where it could pass around a pulley? If so, then, the set-up would consist of a "block and tackle", with a 4:1 advantage (correct me if I am wrong), and this would do two things:

(1) decrease the bar pressure, by a factor of 4
(2) increase the length of the "throw" needed to depower the kite

Also, you could probably make a case for

(1) allowing finer control of the depower mechanism
(2) allowing finer control of the turning mechanism
(3) increasing the drag, due to line resistance

If any of my assumptions are true, does anyone know why a kite racer would want to do any of the above to his kite and bar set-up?


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 Post subject: Re: Sroka testing new Aguera shapes
PostPosted: Mon Feb 01, 2010 6:23 pm 
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hmmm, would understand 1) and 2), but definately not 3)... what I heard is that they are racing with very long lines now anyway and drag is a problem already...


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 Post subject: Re: Sroka testing new Aguera shapes
PostPosted: Mon Feb 01, 2010 7:05 pm 
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kitezilla wrote:
Does the second rear line go all the way up to the kite, and then, around a pulley? Or just part-way up the to the kite, where it could pass around a pulley? If so, then, the set-up would consist of a "block and tackle", with a 4:1 advantage (correct me if I am wrong), and this would do two things:

(1) decrease the bar pressure, by a factor of 4
(2) increase the length of the "throw" needed to depower the kite

Also, you could probably make a case for

(1) allowing finer control of the depower mechanism
(2) allowing finer control of the turning mechanism
(3) increasing the drag, due to line resistance

If any of my assumptions are true, does anyone know why a kite racer would want to do any of the above to his kite and bar set-up?


it would increase bar pressure by a factor of 4 and decrease the length of throw to depower the kite.

the reason the first bow kites had this was because they needed like 2 meters of bar throw to depower them. the pully bar reduced that to half.

he probably has like 10000000m lines to send the kite pointing as far into the wind window as possible and the line stretch would make turning the kite difficult. increase the amount of line you can pull (by 4 times) then you can effectively turn the kite again and compensate for the line stretch.

it's def not for the depower, because in the 1:1 mode the cab's depower "100%"


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 Post subject: Re: Sroka testing new shapes
PostPosted: Tue Feb 02, 2010 9:27 am 
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due to Bruno Sroka's request the pictures have been removed and the post been edited.

To keep the bar setup going, it was not deleted completely.

Thx for understanding.

Greets
Toby


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 Post subject: Re: Sroka testing new shapes
PostPosted: Tue Feb 02, 2010 12:06 pm 
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Sorry Bruno for inconvinience ! I was paying more interrest on the board rather than on the bar of your tube kite....


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 Post subject: Re: Sroka testing new shapes
PostPosted: Tue Feb 02, 2010 12:29 pm 
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board and bar !


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 Post subject: Re: Sroka testing new shapes
PostPosted: Tue Feb 02, 2010 1:17 pm 
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ok :remybussi:


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