Thank you mixmatters for the links to the papers on Air Inflated Fabric Structures.

They do an excellent job of explaining how a pressurized fabric tube works, very enlightening.

Thank you, Bruno, for your hard work to innovate and continue improving inflatable traction kites. Had to chuckle when I read some of the comments, thinking similar things were probably said decades ago by a few windsurfers when they saw your first kites whiz by. I sincerely hope you receive request...

Suspect your friend's lineset from Kiteboarding.com is Q-powerline Pro ( https://kiteboarding.com/proddetail.asp?prod=q-powerline_pro_lineset ). Watch the video at the bottom of this page for more info about the line. Very durable line, the original Q-powerline was developed for landboard & kite bug...

... have to admit. I am somewhat jelious of the Peter pan life style - I wonder if I would actually be as fulfilled as what am now?. .... Come on Plummet, you live in the 'Nak !! Any windjunkie in the know about that place dreams of living there. Yah, Bra-zill may be warmer and have more babes in b...

During a screening leak test ( kite pumped hard & coated with soapy water ) the air will leak out the nearest hole in the Dacron. Often that's a stitching hole at the LE closure seam, canopy-LE seam, or another spot with stitching. Leak will typically be in that general area.

To find the super tiny pinholes, you need to inflate the bladder in sections between the 1-pump valves. This will allow you to pump up that section of bladder to super drum tight pretty well across the section, stretching the bladder maybe 15 - 20 % circumferentially and opening up those tiny holes....

Highly doubt your patches are leaking unless you didn't clean the bladder before applying the patches and they have come off during re-installation. Might want to check on the old bladder the location of some of the new pinholes. If they are repeatably close to the original ones ( same pattern ) the...

purdyd wrote: ↑

Sun Nov 11, 2018 4:49 am

checkout 1:31 in the video

Saw that but with a human at the controls the steering and sheeting inputs won't be as repeatable as having a machine at the controls.

Back in 1987, Gaastra, Bruce Peterson, Dave Russell, Jeff Magnan,Chuck Stahl and others developed and tested new windsurfing sails with the ADTR test rig, which apparently gave the first indications of the benefit of a loose leach sail and helped Pascal Maka win back the sailing speed record from Cr...

This video made my day, 1 min:28 sec into this video, they show an instrumented kite flying / test rig being towed behind a small van. Finally ! The ability to test kites empirically instead of by subjective / comparative test riding. Want to know more about this test rig, particularly if it only ca...