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Author: Subject: A Question About ARC AutoZenith?
Seanny
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[*] posted on 20-11-2010 at 04:12 PM
A Question About ARC AutoZenith?


So, I just got to wondering... Did Peter Lynn originally design their ARC kites with AutoZenith on purpose? Or was this maybe designed unintentionally/by accident and they stuck with it?

I haven't done my research. Peter Lynn Twinskins are the only line of kites to have the AutoZenith feature, yes?

Cheers,
Seanny



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[*] posted on 20-11-2010 at 06:01 PM


This doesn't exactly answer your question but go here and click CORE . http://peterlynn.com/

Peter Lynns history is cool and worth the read. Amazing man.

I am guessing that auto zenith was a pleasant bi-product of the design rather than a requirement ?



Kites: 2.5m Profoil , Quadrifoil XL kitesurfer, NPW 5 Danger.
Flexifoil: 1.7m Sting, 4.9m Blade 3, 9m Blade 2.
Flysurfer : 19m Speed 2 SA, 7m Pulse
Peter Lynn :18m Phantom, 15m Synergy, 10m Synergy, 1200 Farc, 460 Sarc, 130 Tarc, 5m Peel, 4.2m , 6.4, 8.5 C-Quads, 3.5 LS2 single skin.

Rides: Flexi / P.L. Frankin'Buggy , Shaped + straight skiis, sand skis, Coyote blades. Core 95 ATB. RKB R2 ATB .

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Seanny
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[*] posted on 20-11-2010 at 06:07 PM


Ohhhhhh, thanks for the link!

He is truly an incredible person, and an inspiration to so many.

Whatever the reason it was created, I'm sure glad we have it! :D

Cheers,
Seanny



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Morrie Williams
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[*] posted on 20-11-2010 at 06:11 PM


You can always ask the man to his face at the next NABX he attends.



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Seanny
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[*] posted on 20-11-2010 at 06:13 PM


I also have a few questions for Santa Claus next time I go to the mall :D

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Seanny



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[*] posted on 20-11-2010 at 06:17 PM


Seanny -

AFAIK, PL twinskins are the only kites on the market that autozenith. I'm not certain if PL had this as a goal from the outset, but I'm certain he was aware of the phenomena since the first Sarcs were developed.

The main factor for autozenith is that the center of lateral resistance of the kite as it falls off to one side is ahead of the center of gravity. This creates a torque, or moment, that turns the front of the kite up. Tube kites generally have a center of gravity that is far forward of the center of lateral resistance, due to the mass of the leading edge. This causes them to fall off further. If you are a sailor, it's like describing whether your boat has 'weather helm' or 'lee helm.'

For autozenith to work, there has to be enough lateral area to develop the turning moment. Other foil kites don't have enough arch or 'C' shape to present sufficient side area.

Must admit I'm not familiar with newer PL Arcs - haven't flown a Synergy or Charger. But it sounds like the Chargers are light on autozerith, while steering is really responsive. Makes sense - a property that leads a kite to positive stability in any axis will tend to make it less responsive to user input along the same axis.

krumly



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Seanny
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[*] posted on 20-11-2010 at 06:39 PM


Very fascinating! :o Thanks for the info!

It does make sense. I wonder what the future of kites will be like?

Cheers,
Seanny



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[*] posted on 21-11-2010 at 04:24 PM


When I see a post like this I always wait for Krumly to chime in with a lucid and learned explanation. Thanks as always!



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[*] posted on 21-11-2010 at 06:29 PM


Thanks Krumly, I always wondered why ... that makes it clear :thumbup:



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Seanny
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[*] posted on 21-11-2010 at 10:18 PM


If we ever stop hearing from Krumly all of a sudden, I bet it's because he was taken down by a Peter Lynn undercover operative on grounds of knowing too much, and plotting to undermine the company. :o

Cheers,
Seanny



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[*] posted on 21-11-2010 at 10:34 PM


Or on the Peter Lynn payroll, then he will be paid to not talk about what he knows!



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[*] posted on 22-11-2010 at 07:34 AM


None of it's a secret - check out PL's own website for the 'technical papers':

http://www.peterlynnhimself.com/

The monthly newsletters on http://www.peterlynnkites.com/news/news_archive.htm go back to 2001. You can follow the history of Arc development in those, along with all the other developments in show kites, bugs, kiteboats, etc.

krumly



Flying:
1.5 m Ozone LD Stunt
2.2, 3.2, 4.2 m C-Quads
2, 3, 4, 5.5, 7.5m PKD Broozas
9m PL GII, w/ adjustable rear strap mod
Dual mode mod PL GI 13, HArc 6, FArc 12
Cab 5m Convert, 7&9m Xbow, 12m SB
Lots of stunt kites and a Rev Supersonic

Riding:
Libre Special buggy, PL Comp buggy
Line skiboards, & Lib-Tech Park & Pipes
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Seanny
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[*] posted on 22-11-2010 at 03:37 PM


Oh. Well then. In that case, I guess you don't have to worried about getting assassinated, Krumly. At least not by Peter Lynn... :D

Cheers,
Seanny



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[*] posted on 22-11-2010 at 06:23 PM


The Twin skin arcs MAyyyyy not be the only auto zenith kite. There is a French kite called the Mandibule ( I think ) that Ssssshould also auto zenith?

I have never had the pleasure of seeing this kite in person but in video it looks a lot like a 2 line arc ? By nature , it should auto zenith?

P.S. Yes, Long live Krumly and his wealth of knowledge ! :thumbup:



Kites: 2.5m Profoil , Quadrifoil XL kitesurfer, NPW 5 Danger.
Flexifoil: 1.7m Sting, 4.9m Blade 3, 9m Blade 2.
Flysurfer : 19m Speed 2 SA, 7m Pulse
Peter Lynn :18m Phantom, 15m Synergy, 10m Synergy, 1200 Farc, 460 Sarc, 130 Tarc, 5m Peel, 4.2m , 6.4, 8.5 C-Quads, 3.5 LS2 single skin.

Rides: Flexi / P.L. Frankin'Buggy , Shaped + straight skiis, sand skis, Coyote blades. Core 95 ATB. RKB R2 ATB .

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Seanny
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[*] posted on 22-11-2010 at 06:26 PM


Whatever it is, Peter Lynn has been perfecting the formula for years, and has never failed to produce a completely satisfying product. It's neat that somebody else figured it out, though. But meh. Why buy French when we have Peter Lynn? :D

Cheers,
Seanny



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[*] posted on 22-11-2010 at 06:35 PM


I think the mandibule and the 1st arcs came out about the same time. Not sure how long they made them but I don't think they have done so for a long time.



Kites: 2.5m Profoil , Quadrifoil XL kitesurfer, NPW 5 Danger.
Flexifoil: 1.7m Sting, 4.9m Blade 3, 9m Blade 2.
Flysurfer : 19m Speed 2 SA, 7m Pulse
Peter Lynn :18m Phantom, 15m Synergy, 10m Synergy, 1200 Farc, 460 Sarc, 130 Tarc, 5m Peel, 4.2m , 6.4, 8.5 C-Quads, 3.5 LS2 single skin.

Rides: Flexi / P.L. Frankin'Buggy , Shaped + straight skiis, sand skis, Coyote blades. Core 95 ATB. RKB R2 ATB .

Ken (K2)
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[*] posted on 22-11-2010 at 08:31 PM


Maybe that new Flysurfer Viron qualifies. Don't know about that patent-pending depower reefing though... gotta think there is enough in the public domain to make that old news, but maybe certain aspects of their approach are unique.

I got lots of other kites that autozenith - are on one line, though!

krumly



Flying:
1.5 m Ozone LD Stunt
2.2, 3.2, 4.2 m C-Quads
2, 3, 4, 5.5, 7.5m PKD Broozas
9m PL GII, w/ adjustable rear strap mod
Dual mode mod PL GI 13, HArc 6, FArc 12
Cab 5m Convert, 7&9m Xbow, 12m SB
Lots of stunt kites and a Rev Supersonic

Riding:
Libre Special buggy, PL Comp buggy
Line skiboards, & Lib-Tech Park & Pipes
Cabrinha Prodigy kiteboard
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Seanny
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[*] posted on 22-11-2010 at 08:45 PM


Ha! While this is true, it doesn't count! :P

For sale! Super stable kite, all new TWO strut design, diamond wingtips, SUPER stable, AutoZenith, MASSIVE depower, variable line length, flies in almost any wind! Perfect for beginners to advanced riders! Comes complete with kite, line, bag, and struts!

:D

Cheers,
Seanny

how-to-build-a-kite.s600x600.jpg - 44kB



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[*] posted on 27-1-2012 at 05:55 PM
Venom I 13 Autozenith


Last weekend I needed to take a breather and warm up after some time in the cold water. Autozenith came in handy as I took a break. Wind was in the 20's and gusty but that did not bother the ARC.
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[*] posted on 27-1-2012 at 06:11 PM


As I described in other threads, I'd regularly hitch my Phannys in auto zenith while at Treasure Island Kite Festival.

(It would be a more spectacular sight if it wasn't for all those squids, trilobites and other giant inflatables in the surrounding air!) :alien:
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