Horst Sergio wrote: ↑
Thu May 25, 2017 10:27 am
I am not 100% sure as I just had a short look on the beach but from experience and what I remember it's constructed like this:
The middle "B" level is on the first 1:2 pulley (as flysurfer has also done it on the nearly 3 level bridle of the old speed 4 normal (not lotus))
The two extra pulleys on each side are 1:4 and 1:8 and are just connected to the tips to give them a clean support without gabs, which can cause wrinkles on the tips of kites with just a 1:2:4 mixer.
Also older Flysurfer kites as the speed 2 and psycho 3 had extra levels on the tips to have less wrinkles but they used so called ring lines, so a small steel ring on the connection point that worked like a pulley but had the problem that the wear and shortening of the ring line was pretty fast. So not totally new but a new way to solve an old problem. And this 1:8 point is not just moving alone but spreads the forces via the inner structure of the kite into the tips. I think that's what they want to say
If you look at the pictures the canopy looks really smooth everywhere and especially also on the tips where most foil kites don't.
So what you are saying is the mixer is a regular 421 with an extra pulley on the front to give 8421 (Edit I see in the PDF manual that is what it is). B is connected at the center to the 1/2 ratio then maybe at the third line it's on the 1/4 ratio, then at the tip the 1/8 ratio?
I know the ring lines on the pyscho3 and feel this is a little different.
Horst Sergio wrote:
I asked my self if future race kites could be 6 liners (flying lines) as the libre radical2 is.
By the way has anybody a picture of the whole mixer of the radical2, as I am thinking to adept its 2 trimmer system to my ozone chrono and want to see how they solved it?
The disadvantage of a 6 liner 3 level bridle kite is for sure the two extra lines but as they're getting always shorter and can be a bit thinner than 4 lines the extra drag shouldn't be a no go.
The advantages would be that you can bring the mixer down to the bar where you can combine it with a 2 trimmer system that allows you to actively change and increase camber depending on wind situation or course as the extra pulleys on the fone Diablo do when totally sheeted in. Another advantage is absolutely no mixer pulleys in the bridle similar as on the old FS extacy or rookie. Another advantage could be a good B line stall safety.
Not sure if worth to use, but maybe worth to try.
I postulated a 6 line 2 trimmer system when first discussing the Diablo line. It would just need to divide the A main and C pulley line on to separate front mains and front lines. So it will end up with 4 front lines and front mains. 2 of the front lines are basically extended A mains and the other 2 front lines extend C pulley line connections. You could have them on separate trimmers and you actively change the camber on the kite.
The advantage is probably really good for Foil Boards. You could let out the C Trimmer and make high camber on the kite for water starts and going down wind, you could then pull the C trimmer in reducing power and improve L/D for better upwind.
This assumes the trimmers are set a certain way as there is a few ways you could setup the trimmers on a 6 line. You could adjust both A and C together for front vs rear line adjustment. Then you could either adjust A or C for camber change. Or you could trim both independently, changing both front rear line and camber with either. Or you could adjust the rear lines like with that new North bar and then either A or C for camber.
Mossy 757 wrote: ↑
Thu May 25, 2017 3:37 pm
I think the trick now with race kites if figuring out how to get them into a perfect trim "mode" for both upwind and downwind performance. When you setup a kite to kick ass downwind, you do a lot of stuff to it that makes it suck upwind - and vice versa.
This what the 6 line system described above can do. Something like a WAC line can somewhat achieve these goals too, but 6 line will always have better camber trim.