I'm not a rocket scientist, but I bet that leading edge provides way better lift to drag and depower ability.
Personally I'm stoked to see flysurfer developing this and Mr Peter Lynn.
maybe i am a little slow but why does everyone say it must come from the nasawing design? aren't All LEIs single skin and we know they depower better
than a lot of foils and i dont think they came form the nasa wing design. I personally do not like the nasa wings but look forward to seeing the
flysurfer or Mr PL's version - i think it must be a much better design just my 2 cents
All single skin kites are benched marked against the nasawing, why? Because they set the bar, if you can't better the design then you need to go back
to the drawing board
Blade V 4.9m & 8.5m VIP,Ozone Frenzy 11m, SS Flexifoil buggy, PL hybrid suspension buggy (PTW), MBS core 95.
homemade:
NPW 9b: 7m (Union Jack). NPW 9b HA 3m (Damien) and 10m (Jolly R). NPW21 3m, 5m (aka Zombie), 8m (Batman), 11.5m (NASA), NPW 21 HA 6.8m
The Hammers 5m, 7.2m & 12m
I thought the C-Quad was the gold standard for single skins.
2016 CORE Section wave 6m and 9m
CORE Sensor2 controlbar
2016 5'2" North WHIP surfboard
Zeeko Spitfire XLW foil and 5'0 custom foilboard
Electric Outback MountainBoard
Any old $100 snowboard
I'm sure the physics correlate real close to that of an LEI - the big leading edge creating a vacuum (so to speak) under the wing surface would really
crank up the power generated by these things once in motion. I had an RC plane like that - can't recall what it was called....negative camber? Don't
remember. Hell, it's even akin to a mast and sail on a sailboat. The big LE creating ultra low pressure on the inside surface. Makes me wonder what
took so long
LE of the kite shape is similar to a cylinder and the attached smooth upper wing surface behind it reduces flow separation to allow efficient lift.
Suspect low/kite speed flow separation is not that big of an issue for the non-smooth lower surface behind the LE?
I somehow think that this will change a lot of people's current opinions once it's released. Flysurfer really must have done a ton of testing and
money to be so confident in releasing this design. It can really be said that all foils are designed around the same basic foil design, and all lei
are designed around a same basic lei design. They have taken a basic model and shaped it to their own style and liking. Why can't it be no different
with single skin kites? Didn't ozone create a single skin glider not too long ago? Either way this type of engineering is moving into a positive
direction breaking out of the current norm. Sure hope it doesn't flop, and leave them dumping the R&D on these things cause this could only be the
beginning.
what I fly/ride:
19m Flysurfer Speed 2 SA
12m Flysurfer Speed2
6m Ozone access xt
1.5m Ozone imp trainer
144cm Airush Switch
152cm lib tech skate banana
MBS Pro 90
Jereme Leafe Pro 95
I don't know, that 6m peak =10m foil and 9m peak=14m foil seems VERY suspicious to me....really seems like marketing juju.
That only seems to be the case in FB kites, or FB styled kites.
But in reading the google translated page, they could pretty much be talking about my 2004 Rookie2.....pulls very hard for it's size, depower is
on/off with no real in-between.... I would imagine they have improved in a decade!
Still want to see it in person, but that video made me a bit less excited and loads more suspicious!
Tide? What's a tide? Man, it's 1000 miles to any ocean.
I'm sure any single skin kite will have it's roots based on a NPW...... I'm sure I've seen something similar
This is one interesting NPW !
From the little I understand NPW like the NASA star accomplish depower by tucking the nose ????? This one looks like you can actually adjust AOA ? If
so can you tell us how it performs compared to your traditional ones.
Is it just me or do the wingtips on the Peak look unfinished ? They just seem to end at a flat rib? They look to flap around a bit in the videos.
Possibly adding to the On / Off issue?
While Flysurfer may be leaning on the NPW designs I see them using other influences like the stiff rods to hold shape and more of a traditional foil
profile. Big props to them for using every advantage they can find.
Regarding the "flapping," my understanding from what I have read is that the tips flutter a bit for a moment when letting the bar out transitioning
from powered to depowered.
A couple more random bits in this XK thread. http://www.extremekites.com.au/forums/viewtopic.php?f=17&...
More recently, parapent designers approached the problem from a different direction- by taking the lower skins off their multi-celled high performance
ram air wings.
From the little I understand NPW like the NASA star accomplish depower by tucking the nose ????? This one looks like you can actually adjust AOA ? If
so can you tell us how it performs compared to your traditional ones.
The NPW in the pic has no de-power on it, it was a test to try out a wider aspect ratio and what fitting keels did. I have an 11.8m NASA logo NPW
which does have de-power on it. It is de-powered by altering the AoA, although it doesn't have the power range of a foil it does de-power and fly
faster on a lower AoA and slows down / powers up on a higher AoA. Giving me a wider wind range to fly it in.
PS As Peter Lynn is sending some of his kites out I don't think it so much of a secret any more........ I've got a 4m prototype for testing and they do what they say on the tin!!
Blade V 4.9m & 8.5m VIP,Ozone Frenzy 11m, SS Flexifoil buggy, PL hybrid suspension buggy (PTW), MBS core 95.
homemade:
NPW 9b: 7m (Union Jack). NPW 9b HA 3m (Damien) and 10m (Jolly R). NPW21 3m, 5m (aka Zombie), 8m (Batman), 11.5m (NASA), NPW 21 HA 6.8m
The Hammers 5m, 7.2m & 12m
Interesting, interesting... I'm more interested in PL's new NASA inspired single skins from the newsletter than this Flysurfer monstrosity, to be
honest. Floppy edges, massive overcomplexity, and IMO one hell of an ugly kite!
Perhaps I should see if PL will sell me one of the kits... if I can put it together right! haha
He did mention that L/D was no better than NPWs, those who have got their hands on them - what did you think about the window/upwind? Is it a depower?
Is it better than experimental NPW depower systems?
He did mention that L/D was no better than NPWs, those who have got their hands on them - what did you think about the window/upwind? Is it a depower?
Is it better than experimental NPW depower systems?
The kite I have is a 4m fb, as much as I'd like to give a full review, I don't think it would be really fair as it is a prototype and as such I doubt
it would be the same as the final production kite. The key seems to be in the simplicity.
Since getting the kite I've only had chance to fly it a couple of times as the winds have been way too high. The static session I had in around 12
mph winds the kite feels very light and has that solid NPW power. In the buggy again it feels very stable with lots of power, but until I can get more
flying time with it I can't really comment on window size. What I will say is that once these kites become available they will be a real alternative
to any kite out there, especially at the price they are hinted to be released at.... cheaper to buy than make!!
Blade V 4.9m & 8.5m VIP,Ozone Frenzy 11m, SS Flexifoil buggy, PL hybrid suspension buggy (PTW), MBS core 95.
homemade:
NPW 9b: 7m (Union Jack). NPW 9b HA 3m (Damien) and 10m (Jolly R). NPW21 3m, 5m (aka Zombie), 8m (Batman), 11.5m (NASA), NPW 21 HA 6.8m
The Hammers 5m, 7.2m & 12m
The lightweight packability and lower wind flyability will be a boon for adventurers or trekkers. You will still need to have more than one kite for
such adventures...but they'll be lighter and take less space in your backpack.
If they can just now come up with one adjustable kite that will handle 3-35+ mph winds and you got it all!
Hey ski, I have the 4M on order, it hasn't arrived yet, but I payed $124.80 with shipping. When it arrives, I plan on flying it side by side with my
3.8M Reactor, on the same line set for comparison. I will post video/review when I can.
Team MEAN GREEN
Bob Lussier
OUTLAW KITER 1.4M Beamer III, 2M Beamer IV,2M
Toxic HQ , 7.5MApex III, HQ, Quadrifoil XXXL (9.66M), NPW5 2.4,4.8m,
NPW9 3.4M(HQ),NPW9 7M (RASTA\'S FURY),
NPW9 7.6M (BIGSISTAH),NPW9 12MGREENMONSTER(km4), P L Comp ST buggy,PL Bigfoot+
buggy, Atomic Alibi Snowboard, Protec Knee/Elbow Pads & Helmet, Seirus wristguards, Demon crash shorts, LaCross chest/shoulder pads.
(tryin\' to be safe!)
Depower doesn't just mean the bar goes in and out. It only means the AoA of the canopy is being changed. As such, you can depower on handles, as long
as you tilt them both at the same rate.
BigE has some NPWs rigged with a "universal depower system" which tilts the whole kite and looks pretty neat. As far as I know, he flies them on
handles.
What I don't see is how the SKIN is a depower kite. No pulleys, so it looks a lot like how a traditional NPW "depowers" by changing trailing edge
shape and slowing down the kite. Unless he has come up with something truly revolutionary?
Neat how he has picked up the Z bridle from the NPW flying community. It really does help with flyability
In this context I think 'depower' is being used literally and relates to the fact that when the brakes are fully released the tips 'rag out' and the
kite goes from max power to about 50% power (at least this is my interpretation after emailing Peter Lynn)
Zebra Z1: 2.5, 3.4, 4, 5m
Nasa Star 2: 1.5, 2.5, 4, 5.5, 7m
HQ Apex III 5m
Zebra Buggy - wide axle
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