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by kitexpert
Thu May 23, 2019 7:45 pm
Forum: Gear Builders
Topic: vacuum ... or something else
Replies: 12
Views: 465

Re: vacuum ... or something else

1: wet up part with carbon and epoxy, then wrap peel ply and paper towels. Place this into a waterproof bag, then sink into a deep bucket of warm water - say, 1m deep. 2: wet up part with carbon and epoxy, then wrap peel ply and paper towels. Place this into a plastic bag, put in pit, fill pit with...
by kitexpert
Mon May 13, 2019 3:33 pm
Forum: Hydrofoil
Topic: Sliding spreader bar dimensions
Replies: 18
Views: 666

Re: Sliding spreader bar dimensions

The bar is usually bent so it will not get so high forces. If you have a tight rope, the connection will not be as stable in the middle of the rope. If you have a bit of slack it moves in opinion more controlled from side to side and is also stable in the middle. Yes, that is true. But in practice ...
by kitexpert
Mon May 13, 2019 10:30 am
Forum: Hydrofoil
Topic: Sliding spreader bar dimensions
Replies: 18
Views: 666

Re: Sliding spreader bar dimensions

No, just a regular carbon plate/rope spreader bar, B is 20 cm / 8 inch on mine. See my harness, A is only about 1 inch even under load it hardly gets much more than that which is pretty close to your body, right? Of course not "zero", but zero would be the goal :D SlidingBar.jpg 8) PF Ok, it is pos...
by kitexpert
Sat May 11, 2019 11:18 pm
Forum: Foil Kites
Topic: 2 lines 2.5m stunt foil kite adaptation to 4 lines bar
Replies: 22
Views: 769

Re: 2 lines 2.5m stunt foil kite adaptation to 4 lines bar

norcom: Apparently some Genesis kites have for some reason very loose brakes (or at least that one had which I tuned). That makes kite turn very slowly, almost non reacting to steering input. So first correction is to shorten Z some 10-20cm and try again. Kite itself is ok after it is tuned up and t...
by kitexpert
Sat May 11, 2019 10:55 pm
Forum: Hydrofoil
Topic: Sliding spreader bar dimensions
Replies: 18
Views: 666

Re: Sliding spreader bar dimensions

A is close to zero on mine :D So the bar can come as close to you as possible, and it slides well. 8) PF Interesting. I know only one method how this distance can be shortened from the usual and I've invented it. If rope is attached like it is drawn in the OP's picture it can never be as close to b...
by kitexpert
Sat May 11, 2019 11:21 am
Forum: Foil Kites
Topic: DIY AR6 closed cell Quadrifoil Style
Replies: 17
Views: 1220

Re: DIY AR6 closed cell Quadrifoil Style

Yeah makes sense with the billow, I also remember measuring the strap tension on a Jojo wings Racemaster kite which was close to the value i used. It was 2 months ago dont remember exactly anymore. But how much dictates billow the lower skin because two positive pressures act against each other (ou...
by kitexpert
Fri May 10, 2019 5:04 pm
Forum: Foil Kites
Topic: DIY AR6 closed cell Quadrifoil Style
Replies: 17
Views: 1220

Re: DIY AR6 closed cell Quadrifoil Style

Hi, thanks for the feedback. Yes I know with the tip air intakes i actually don´t know anymore why I put them there but it wont have a negative effect I think/hope. It had something to do with that the blue cloth (because it was a recycled reserve parachute which has not been used) It was so hard t...
by kitexpert
Fri May 10, 2019 3:12 pm
Forum: Foil Kites
Topic: DIY AR6 closed cell Quadrifoil Style
Replies: 17
Views: 1220

Re: DIY AR6 closed cell Quadrifoil Style

That kite looks actually quite impressive in its own way :thumb: I'm quite sure it is much better try than what I did long time ago and I really hope you can get some positive feedback from it, not just negative. Anyway it is valuable to know what not to do in the future. Interesting to see what kin...
by kitexpert
Fri May 10, 2019 1:15 am
Forum: Foil Kites
Topic: Building a state-of-the-art foil kite
Replies: 34
Views: 1343

Re: Building a state-of-the-art foil kite

It is not that difficult to sew a foil kite, after you have the pieces you just start it. First you sew LE seams of upper and lower skins together (you can do it for all cells), then add a first rib (profile) to it, then next cell so that seams go inside. Possible dribs, bridle attachment points, st...
by kitexpert
Tue May 07, 2019 4:30 pm
Forum: Videos
Topic: Ruben Lenten - My most painful kiteboarding accident (broke my leg)
Replies: 136
Views: 3649

Re: Ruben Lenten - My most painful kiteboarding accident (broke my leg)

Lenten uses also big chickenloop which moves QR further from his body, so his hand touched it more easily than if it was closer to his body.

Bungees (or what ever spring there is) of Ozone QR cuff may be too weak. Sad accident for a great athlete who has already had his share of misfortune.

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