Yes, gonna be interesting!
What do you think Bruno, when could the first model ne on the market? This summer as a 2020 model ?
High Pressure kite by Bruno Legaignoux
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Toby
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Re: High Pressure kite by Bruno Legaignoux
I don't think this summer with the brands I'm in touch with. Maybe with a brand working secretly, who knows.
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Re: High Pressure kite by Bruno Legaignoux
Any progress? Also any chance one of these will be made in Dyneema?
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tilmann
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Re: High Pressure kite by Bruno Legaignoux
Yes that IS exiting.tilmann wrote: ↑Thu May 02, 2019 10:04 amthat sounds promising
https://www.vantagekites.com/news/bruno ... uYVIGX7sP4
Also the Aluula that Ocean rodeo is starting to use is exiting, and sounds like the perfect material for Bruno's idea. Its not patented by OR, and Aluula is for sale for more brands.
Maybe Vantage kites will bring in Aluula soon too, they do have the benefit of there software so they might be faster than any other brand to work out the different effect this material will have on the flying abilities of the kite.
Might just give them the head start.
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Re: High Pressure kite by Bruno Legaignoux
Did any diy builder try to make a HPK? Anybody has a good supplier for the sleeve? Best I could find is 40mm polyester protective sleeving from Farnell. Minimum 25m.
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Freddyforlaunch
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Re: High Pressure kite by Bruno Legaignoux
Today I made a test tube and tested stiffness.
These were the results.
When pumping to 4 bar the tube burst near some ugly stitching.
The energy a tube can withstand before buckling really goes up with increased pressure!
- Graph hph stiffness.JPG (37.22 KiB) Viewed 1492 times
The energy a tube can withstand before buckling really goes up with increased pressure!
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- Flyingseb (Sat Aug 29, 2020 8:43 pm) • Faxie (Sat Aug 29, 2020 9:27 pm)
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tegirinenashi
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Re: High Pressure kite by Bruno Legaignoux
Can you please also report how much pumping strokes did it take to reach each milestone? I highly suspect the dependency is not linear, so it is not 3 times more effort to get it to 3 bars compared to 1.
My test on bicycle tire:
2->3 bar 4 strokes
3->4 3
4->5 2
5->6 3
This was road bike, though, while MTB would be more accurate and realistic.
My test on bicycle tire:
2->3 bar 4 strokes
3->4 3
4->5 2
5->6 3
This was road bike, though, while MTB would be more accurate and realistic.
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Re: High Pressure kite by Bruno Legaignoux
Nice work!Freddyforlaunch wrote: ↑Sat Aug 29, 2020 5:31 pmToday I made a test tube and tested stiffness.
20200829_163822.jpg
These were the results.
Graph hph stiffness.JPG
When pumping to 4 bar the tube burst near some ugly stitching.
The energy a tube can withstand before buckling really goes up with increased pressure!
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