Forums > Kitesurfing   Newbies / Tips & Tricks

Why don't more people kite in light winds?

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Created by drewpweiner > 9 months ago, 11 Dec 2016
jamesperth
WA, 611 posts
6 Jan 2017 3:33PM
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Don't the trees grow sideways up there?

makesurf
NSW, 248 posts
12 Jan 2017 9:30PM
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Gorgo said..
Your basic assumptions are wrong. It's not a linear relationship.
Simplistically, power varies as the square of wind speed so halve the wind and you need 4 times the size of kite.
Except, a bigger kite is heavier and slower and more expensive. All that introduces a myriad of complexities.



Gorgo, I was going to say that but I thought I would look it up on the internet and quote someone about the power increasing with the square of the velocity.
Instead, I found this:
The formula for calculating the power from a wind turbine is:

Where:
P = Power output, kilowatts
Cp = Maximum power coefficient, ranging from 0.25 to 0.45, dimension less (theoretical maximum = 0.59)
ρ = Air density, lb/ft3
A = Rotor swept area, ft2 or π D2/4 (D is the rotor diameter in ft, π = 3.1416)
V = Wind speed, mph
k = 0.000133 A constant to yield power in kilowatts. (Multiplying the above kilowatt answer by 1.340 converts it to horse- power [i.e., 1 kW = 1.340 horsepower]).If you ignore the constants, note that the velocity is cubed not squared.

pattiecannon
QLD, 593 posts
13 Jan 2017 6:35PM
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Who cares why?
Just get the gear and have the whole place to yourself m8
Bonus, : less wind equals glassier waves

Kamikuza
QLD, 6493 posts
13 Jan 2017 8:55PM
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makesurf said..

Gorgo said..
Your basic assumptions are wrong. It's not a linear relationship.
Simplistically, power varies as the square of wind speed so halve the wind and you need 4 times the size of kite.
Except, a bigger kite is heavier and slower and more expensive. All that introduces a myriad of complexities.




Gorgo, I was going to say that but I thought I would look it up on the internet and quote someone about the power increasing with the square of the velocity.
Instead, I found this:
The formula for calculating the power from a wind turbine is:

Where:
P = Power output, kilowatts
Cp = Maximum power coefficient, ranging from 0.25 to 0.45, dimension less (theoretical maximum = 0.59)
ρ = Air density, lb/ft3
A = Rotor swept area, ft2 or π D2/4 (D is the rotor diameter in ft, π = 3.1416)
V = Wind speed, mph
k = 0.000133 A constant to yield power in kilowatts. (Multiplying the above kilowatt answer by 1.340 converts it to horse- power [i.e., 1 kW = 1.340 horsepower]).If you ignore the constants, note that the velocity is cubed not squared.


Kites aren't turbines, and the equation is simpler, but the power is still the cube of velocity. That's quite a specific equation and use of the term "power"...

3CPO
VIC, 12 posts
28 Feb 2017 3:19PM
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I am 75kg, have a light wind kite 15.5m and love it. I ride this between 13kn - 16kn and most of the time I am the only person on the water. So it is great to have the beach to myself and with less chop. Compared to my 11m it is a much smoother ride and the bar pressure is less on the larger kite. Recently started riding a surfboard so I can go in even lighter wind. If I did not have the light wind kite I would miss out a lot. I just prefer the lighter winds as the beach is more pleasant.

So why don't more people have light wind kites?

- They cost more
- The wind range on light wind kites are less
- It is easier to learn on a smaller kite in stronger wind
- Shops don't market light wind kites as much
- Never seen kite lessons offered with a light wind kite

FlyByKite
WA, 103 posts
28 Feb 2017 4:23PM
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Select to expand quote


drewpweiner said..




It is really hard to get going on my 10 metre kite in around 12-15 knots but once I am up then I am flying along... it is just starting up and getting the momentum that is so fricken hard!



You say you lack skills for light wind kiting.
If your flying along on a 10m in 12-15 knots there's nothing wrong with your skills.
Maybe you need to loop or downloop to get started.
Get the starts wired and you could be on your way to instructing light wind kiting.

timmybuddhadude
WA, 862 posts
28 Feb 2017 5:04PM
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Hunter S said..
Why? Well some people are happy driving a hyundia excel

Others just love a V8.

Personally I don't mind what you drive, or where you swim


I had a hyundai excel.one kite now one excel.a perfectly satisfied human being :-)

cauncy
WA, 8407 posts
28 Feb 2017 7:25PM
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Select to expand quote
Plummet said..
Or use the same kites you have now and get one of these.



An ironing board

theDoctor
NSW, 5785 posts
1 Mar 2017 1:24AM
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Select to expand quote
cbulota said..

drewpweiner said..
Why do I always see loads of kites in the sky when it is windy as opposed to 5-15 knots?

Is there something unfashionable about large kites?




In Australia, especially in WA, kiters are used to having strong winds on a nearly daily basis so most really can't be bothered going on in sub 15 knots. Most Perth kiters don't even own light wind equipment. It's all about what you're used to.

I flew to Canada last year and as soon as the wind hits 10-12 knots, they consider that a good day and everyone goes out! if it hits 15 knots everyone goes crazy and raves about how good the day was! Also every kiter in Canada has light wind equipment, big kites, big boards.

In perth, below 18 knots kite beaches are practically empty, but hey, if you enjoy light winds, knock yourself out.




Wow, that's an exhaustive way of saying drewpwiener is a douche

nowindtoday
78 posts
2 Mar 2017 6:28AM
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Big kites are like fat women they're fun for just a little bit not to even mention how embarrassing they are but sooner rather than later you'll want the hot skinny chick same as kites big kites are fun for the first 5 min but you'll want th small kite in strong wind for the real fun



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"Why don't more people kite in light winds?" started by drewpweiner