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jamesperth said..
In addition to the higher AR, the canopy is also thinner in cross section than the Speed 4, and much less rounded / ballooney - Flysurfer have spent significant efforts to reduce creases and wrinkles in the cells (double cordwise ballooning) and the result is a much smoother aerofoil with better efficiency.
the higher aspect ratio is literally the chord length
is this what you mean by thinner cross section?!? and what does ballooney mean?
and im unfamilular with "double cordwise ballooning" i know what chordwise means, basicly its just an expression you use when explaining the direction like a wind from the south is a southerly and if your talking about an aerofoil and your trying to say the 1meter section (chord) not the 12m section (span) you would say chordwise it is one meter.
all i could find was this
//Double Cordwise BallooningDouble Cordwise Ballooning is minimizing the creasing of the cells on the SONIC-FR to an absolute minimum. With exactly calculated arc-shaped panel cuts, double-stitched and glued seams a perfectly smooth, high performance airfoil is created.
couldnt find any other source other then from flysurfer possibly some patent nameing **** going on here. from what i can tell they just "discovered" the correct size of there cells and double stitched it..... not exactly new.....more like decades old....
with everything you do on a wing like adding twice as much glue and stitching it changes the weight. it seems they have done this so that they could have a higher pressure in the cells.
now a higher pressure in the cells is really going to limit there lifetime. i wouldnt be buying any of these bad boys second hand at all. or even a 4 year old new one thats never been used because that glue starts to go even in storage. it would be very integral to this kites structural rigidity.
all and all sounds ...... good.... i like the idea that you noticed there was so much pressure in there that the leading edge didnt flatten out. that will definitely help its flight characteristics. keen to see how they go in the larger sizes and the short lines have me excited but im thinking.... 21m on 10m lines chopping out the bar entirely and gerry rigging up some toggles.
get some ****ing jumps in or if shes light find a few dunes and do a couple hop and glides for me :D