kite benchmarks

> 10 years ago
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cwamit
cwamit
WA
1194 posts
WA, 1194 posts
9 Aug 2006 8:49pm
Hypothetical, if you were an editor / writer for a kite mag and had access to 07 kites how would you benchmark them to measure each kites performance,

I ask because it would be interesting if kites could be benchmarked through a standard testing measurement to actually cut through the hype and bullsh!t that the average punter needs to sift through to find the kite that performs best for their needs.


What would be the benchmarks needed...

1. Turning speed
2. Jumping performance
3. Low end wind performance
4. High end wind performance
5. Safety performance
6. Bar setup
7. Destructibility
6. Overall value

Stated the obvious cant think of anymore…

from the several kite mags I have read - the review of kites seem to be more moderated and subjective in there reviews approach as opposed to the ability to give performance benchmarks which is the best way to give a measurement of any product , after all subjective is best left for when ridding a demo kite. Yes I realize kite mags have an interest in advertising revenue but that’s the great thing about benchmarks...

The advantage of benchmarks are obvious as a help in purchase decisions but also the long term evolution of kites would no doubt improve by putting pressure on the kite companies to design kites that are actually improvements of previous design instead of color scheme changes , minor tweaks that then proclaim to be major improvements.

So does anyone here have a huge wind tunnel and a degree in statistical analytics?

Or do you think it's a waste of time because kites and performance preferences are individual choices and needs - so its best left as is
gruezi
gruezi
WA
3464 posts
WA, 3464 posts
9 Aug 2006 11:15pm
I think this would be a great thing, but I don't have a degree, nor a wind tunnel. You could put your results on the web for subscription fee and pay for the testing that way. Your major expense would be kites........ah, but this is aleady being done by Breast Kiteboarding Aust. Ltd. in the Kalgoolie test lab.....ah, nothing like testing new kites in pools of breast milk.

To find out about the best kite, contact the ample bossomed director of Breast.

The Managing Director
Breast Kiteboarding Aust. Ltd.
1 Nipples Court
LUCKY BAY
WA
GalahOnTheBay
GalahOnTheBay
NSW
4188 posts
NSW, 4188 posts
10 Aug 2006 10:14pm
"Destructibility"? don't you maen indestructability? or kook-proof-ed-ness?
kiterdan
kiterdan
WA
680 posts
WA, 680 posts
10 Aug 2006 8:48pm
Im doing a thesis using a CFD (computational fluid dynamics) program at the moment.
If you had a the initial design program that could accurately (and cheaply) reproduce a 3D model of a kite, you could benchmark numbers 1-4 in your listwhen analysing in the CFD program (The actual modelling program that I used sucks).
The kites could be modelled with existing programs but I think it would hard to get the profile and the characteristics of the kite perfect...besides which it would take a ****ing long time! I wouldn't think that companies would be too keen to give a magazine the models anyway.

Thats the direction I think initial testing of new kites will go...maybe theyve already done it.
Oakie
Oakie
WA
268 posts
WA, 268 posts
11 Aug 2006 12:52pm
The problem is that the outcomes of CFD mean nothing - figures generated in a tunnel would in no way reflect performance in real environmental conditions - lift, pull drag and such attrbutable values can suit one rider but not another.

Magazines get slated for giving non-detrimental reviews, but seeing as reviews are based on the prefernce of the tester, which will vary from one rider to another, how can they be subjective? Here goes, north rhino 06 - what a bag of ****e, nearly buckled by legs. Slighshot 11m fuel 06 - actually, to quick to turn, I like a bit of reaction time. Doesnt mean the're bad kites though - antoher guy loves the Rhino 06, and hard core loopers will dig the fuel.

Scores need to reflect the characteristics, (i.e. turn speed - fast or not so fast) not the personal measure of performance. So yes, individual choices are best based on the subjective writings about each kite.
dachopper
dachopper
WA
1802 posts
WA, 1802 posts
13 Aug 2006 11:06am
the only real or worthwhile benchmark you could do would be to test kites that give the same pull or closest to it in the same winds. ie in light winds get 2 models of different branded kites, go down to the smallest size available in each that will let you stay upwind for the given wind... then you could do 1 run in and out, time how fast it loops, feel the different pull, try get top speed, and longest hang time from the one run, swap over a few times and there will be a direct comparisin ,

ie for turning speed you could actually get a time taken for the different models to spin and record it, use a % as a reference... for another comparasin on a different day with different speed the % will be the same but times may differ. and then all 3 %'s would be comparable. Realistically you could only compare small kite with small and big with big as some companies have a huge differnece in their big model performance vs their small kite performance.

but i think the smallest kite size that allows you to go upwind atleast highlights the size comparasin..and probably RANGE available... and the rest ie looping speed, pull and top end probably is user preference. but the size vs pull and speed would be the interesting ones!
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