I tried to fix front stall on my sonic fr 18m by shortening steering lines compared to my frontlines at the bar (250mm) a bit too much. Is that the same effect as putting extra pigtails at the "a mains"?davesails7 wrote: ↑Wed Aug 29, 2018 5:49 pmThat's what stopped all tip truck issues on my sonic fr 15m also. I did the change by adding a 75mm pigtail to the a mains. This gives the same effect as shortening b, c, and z without any issues with pulley range.HaylingBilly wrote: ↑Wed Aug 29, 2018 4:26 pmNow I have ended up at: a1(0), b1(80mm shorter), c1(60mm shorter), br1(150mm longer). I have pretty much run out of adjustment on C-Main, so I suspect the C pulley will be running up against the knot in C-Pulleyline with my bar pushed away; but for the kite to be so much more usable its worth it to me.
All prestretched UHMWPE fiber line (aka dyneema/spectra) shrinks. All kites use this prestretched line.a99 wrote: As i understand there is lot of posts about Sonic bridle shrinking, but no one of Speed kites of Flysurfer bridles shrinking. Speed bridles not shrinking so much comparing with Sonic's ?
Not even remotely. Try add 10cm to Z main instead.twig wrote: Is that the same effect as putting extra pigtails at the "a mains"?
Thank you so much for your effort and patience! I really appreciate it!
I did the long mixet test along whole span of the kite on one side, and the shrinkage seems almost uniform along the span. That's why I expected the mod to work. Here are the measurements from top of the mixer to kite:
You mention the B limit often, could you please explain what it is exactly?foilholio wrote: ↑Tue Oct 09, 2018 4:17 pm-12cm Z is a lot less than -20cm, but if you measure the tips you may see what sort of issue that could cause. Try the long mixer test at the tips. Otherwise just try extending Z and maybe correcting the B limit. Shortening Z in profile goes against everything I have seen with how bridles shrink.
Those measurements from HaylingBilly are not the at the mixer, but at the kite end.
Second hand kites that are out of tune and the desire to make them fly as they should...
direnc wrote: I did the long mixet test along whole span of the kite on one side
It does on your final DIFF numbers, though there is some variance. Your use of negatives and positives in your numbers are a bit confusing, I will just assume they all indicate shrink though they look as stretch.direnc wrote:the shrinkage seems almost uniform along the span
Measurements may be wrong, current kite shape may not work with standard settings, differences measured may be enough to cause the problems. Overall many reasons measuring things can be a waste of time.direnc wrote:That's why I expected the mod to work.
When the mixer fully extends to depower, B hits a limit. This limit affects the depower of the kite. The mixer and kite bridles will shrink to reduce the B limit. This has a large effect on the kites performance. Kite will fly slower, depower less and stall easier.direnc wrote: You mention the B limit often, could you please explain what it is exactly?
Thanks, confusing. If they are differences then may be more ok I guess. If they are measure changes then same as mixer or kite end, and crazy.direnc wrote: Those measurements from HaylingBilly are not the at the mixer, but at the kite end.
Ok. Restore B limit at least at mixer, should be +25cm for most Flysurfer mixers. You will need mixer level at the +25cm, I did a thread on it and made it very complicated,lol. Need a link?direnc wrote: Second hand kites that are out of tune and the desire to make them fly as they should...
Thank me when it's fixeddirenc wrote:Again, thank you for your help and patience.
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