GWTW Forum

Kites! Kites! Kites! => Sport Kites => Topic started by: sethvincent on June 08, 2013, 03:00 PM



Title: how much wind does a 2 line parafoil need?
Post by: sethvincent on June 08, 2013, 03:00 PM
I know they are normally used for power, but what's the minimum wind speed needed for say a 1.9 just to fly it, not to actually pull anything


Title: Re: how much wind does a 2 line parafoil need?
Post by: indigo_wolf on June 08, 2013, 03:53 PM
The Snapshot 1.9 says that it's rated for 4-25 mph. 

That's might be a tad optimistic and you might want another 2 mph unless you want to be "working" the kite.

Confirm the size and method of measurement.  Most foils are measured in square meters.  However, some manufacturers measure wing span and not area for their smaller foils.  This can lead to some confusion.

For example:

Snapshot 1.9 has a wingspan of  Wing Span of 76" (193 cm) or 1.9 Meters.  Sail area is acutally 16.1 sq ft  or 1.5 sq meters.

The size designated by their names for the Ozone Quatrros are spans with the sail area actually being quite different for some sizes.

Ozone Quattro 1.6 has a sail area of 1.0 square meters
Ozone Quattro 2.0 has a sail area of 1.5 square meters.
Ozone Quattro 2.5 has a sail area of 2.5 square meters.
Ozone Quattro 3.0 has a sail area of 2.9 square meters.

When shopping confirm that the measurement you are being given is sail width or sail area.  It can make a lot of difference.

ATB,
Sam


Title: Re: how much wind does a 2 line parafoil need?
Post by: sethvincent on June 08, 2013, 04:02 PM
thanks wolf


Title: Re: how much wind does a 2 line parafoil need?
Post by: Tmadz on June 08, 2013, 04:40 PM
Just a word of caution when looking at parafoils. I have a 1.9 prism and over 15mph I do not recommend it for the young or less strong. If I remember correctly from your posts you have a young daughter and have some slight disabilities. I would stay with the 1.4 or one of the other smaller foils.

Just remember, wind pushes big ships so respect the power.


Title: Re: how much wind does a 2 line parafoil need?
Post by: sethvincent on June 08, 2013, 04:56 PM
thank you for the heads up . I appreciate that.
Does a smaller parafoil need less wind because its lighter, or does it need more wind because of its smaller surface area?


Title: Re: how much wind does a 2 line parafoil need?
Post by: RobB on June 08, 2013, 05:51 PM
I haven't flown a foil in less than 5mph, and at 5mph, any size is work to stay in the air. 5-15mph is where they shine, higher than that, even the little ones drag you around !


Title: Re: how much wind does a 2 line parafoil need?
Post by: indigo_wolf on June 08, 2013, 06:47 PM
thank you for the heads up . I appreciate that.
Does a smaller parafoil need less wind because its lighter, or does it need more wind because of its smaller surface area?

It's a bit of a balancing act.  The foil needs to generate enough drive to overcome the weight of its sail and the drag generated by it's bridle.  After that, any drive it generates is translated into power/pull or speed depending on its design.

There are some foils that are built for power and some for speed.  Other foils are "detuned" and some of their power bleeds off of their trailing edge due to their design and/or how they are bridled.  Basically, there are "traction" foils and "recreational" foils.

Are you looking for a parafoil to just "bomb"/fly around the sky with?   What are the typical winds in your area?

Did you have a budget in mind?

And most importantly  :), if this is for your daughter's birthday, does she have a color preference?  ;)

ATB,
Sam


Title: Re: how much wind does a 2 line parafoil need?
Post by: sethvincent on June 08, 2013, 07:27 PM
I need to be honest, the parafoil would be for me.  I woudn't want it for pulling, but just for flying. Thought it would be neat to have a parafoil stunt kite.
 Odessa thinks they are really neat too and although she'd like to have a blue and black one, or a blue and black anything at this point, lol. I'm not sure she's have the butt to drive one, lol.
 Unfortunately, our wind is USUALLY really light.


Title: Re: how much wind does a 2 line parafoil need?
Post by: Wayner on June 08, 2013, 08:05 PM
1st there is no perfect kite. So one kite can not do it all. Don't kill yourself trying :D

Really light wind kites are a specialty kite. I.E. high cost and not very durable for learning. Usually not a place  beginners start. How often to you get any decent wind?

Foils can fly in 5mph, but have two issues, hard to launch in low winds, a 2nd person helps. They have a smaller wind window (range flying left to right) in low winds than a normal stunt kite.

I have the 1.9. Good kite. don't fly it over 12-13 mph because it pulls strong. Wears me out quickly. Really enjoyed the 1.4 also. Only time I flew it was in light winds. I flew the Ozone once, guessing it was the 1.5. It was quick and the lines where short, making it difficult to control.




Title: Re: how much wind does a 2 line parafoil need?
Post by: ae on June 08, 2013, 11:02 PM
Some foils will do fine with skill in no wind:

Ozone Yakuza (GT) No Wind Kite (http://www.youtube.com/watch?v=OsmzuNRv7Yc#ws)


Title: Re: how much wind does a 2 line parafoil need?
Post by: Hadge on June 09, 2013, 08:40 AM
Some makers have a range of 'beach' foils (HQ amongst others) which are designed for fun and families and pull rather less than the 'sport' foils. 


Title: Re: how much wind does a 2 line parafoil need?
Post by: indigo_wolf on June 09, 2013, 02:29 PM
Some foils will do fine with skill in no wind:

Ozone Yakuza (GT) No Wind Kite ([url]http://www.youtube.com/watch?v=OsmzuNRv7Yc#ws[/url])


The Yakuza GT (like the Flysurfer Speed) will leave some with aneurysms  due to sticker shock.

ATB,
Sam


Title: Re: how much wind does a 2 line parafoil need?
Post by: sethvincent on June 09, 2013, 02:38 PM
We are going to get a snapshot 1.4.  When the wind isn't right, I'll just have to learn to be patient and find something else to do :]


Title: Re: how much wind does a 2 line parafoil need?
Post by: sethvincent on June 13, 2013, 09:03 PM
we got the snapshot 1.4 today!  oh my god, I was hopeful that I would enjoy it, but I had no idea it would be that much fun.  My daughter wants a 1.2 now :P


Title: Re: how much wind does a 2 line parafoil need?
Post by: ae on June 14, 2013, 07:04 AM
Excellent, another addict :)