AD72
Posting Freak
Posts: 1085
Registered: 4-2-2009
Location: Davis, CA
Member Is Offline
|
|
Wind Shadow
Not a happy kiting day today. The winds at the sod farm were a steady 15mph but the sprinklers were moved to the middle of the useable grass area and
the grass was soaked. So I decided to try out a couple of parks only a few miles away from the farm. The grass was perfect, plenty of room and few
people. Unfortunately I now understand the concept of a “wind shadow” firsthand. I remember Dagon saying those fields look good but the wind gets
turbulent because of the houses and trees. Of course I had to learn it myself. The tops of the trees were bent over in a steady state but the wind
at ground level was inconsistent. This made it very difficult to get the kite up into the sky. Once it was up, the air was very turbulent. It
seemed whenever I would stop flying static and get into the buggy, I would go 10 yards and the kite would fold up suddenly and drop from the sky. But
I just kept on trying to get it to work for hours with the Apex II and the Beamer. I did not have the Pulse with me. Perhaps the closed cell would
have worked better. It was just frustrating seeing the wind, knowing it was perfect in the open farmland and not being able to harness it at the
field surrounded by houses.
Anyways next weekend I am off to the beach in Alameda to give the kitesurfing a go with the Pulse.
|
|
Drewculous
Posting Freak
Posts: 3248
Registered: 14-4-2009
Location: Scottsbluff, Ne
Member Is Offline
Mood: Official Tough Mudder :D
|
|
i got into that this weekend...
My girlfriends family has a spot of land out in the toolies, but its surrounded on all sides by trees... open area in the middle, but trees allaround,
i had the same issues. A pain to get the kite up, and once it was up it'd randomly lose wind and fold up.
Its all good tho, got a mean session in last night, at my usual spot, after a storm rolled through... tired as hell today tho
PL: Twister II 5.6m, Phantom 15m / 12m, 10m Synergy, JIBE Viper 5.3m, Charger 19m
HQ: Montana 4 12.5m, Apex 3 5m
Flexi: Blade ViP, Rage 1.8m \"lil Pepi!\"
FlexiFoot Bug / FlexDeck / MBS Core 95 / Custom Carbon Fiber MTH \"Monster Door\"
Corsair Crash Test Dummy (QC Suervisor )
My most perfect days have been on Jekyll
|
|
lad
Posting Freak
Posts: 1498
Registered: 5-12-2008
Member Is Offline
Mood: chilling...literally...
|
|
This is the story of ALL my local flying fields. :dunno:
There was one incredibly huge, local park that could sustain all kinds of activities at once. But the county built several schools there instead.
|
|
Hardrock
Senior Member
Posts: 906
Registered: 12-6-2008
Location: Upstate, SC
Member Is Offline
|
|
This is the reason I'm looking at extending the lines for static not much info on doing that so I guess I'll give it a try.
I was thinking there would be a simple way to connect two sewn loop ends. Looks like one will get a knot for a larks head on the other. Still will be
kind of messy. Might have to send a loop thru then take the far end thru it 4x's uggg.
But I always wanted to know how the wind would be up around 164 feet and how the control will be. Hmmm, if the responce is slower would that affect
killing the kite also?
I always have tree problems.
PL V19m, P15m, V13m
Ace 7M (FOR SALE) 130.00 plus ship. RTF
Ace 5M
Beamer 5m, 3m
Hydra 350
P3 and a few smaller kites
Flexifoil Buggy, E-Trex Legend
LF Proof 151,,,GI Flight93 ATB
|
|
macboy
Posting Freak
Posts: 3146
Registered: 15-10-2007
Location: Edmonton, Alberta
Member Is Offline
Mood: They're ALL good ideas. Right up until they become BAD ideas.
|
|
Same pain here. I've got a 16 acre field right across the street from me shaped in an "L" so it *should* be solid for N. NW, W, S, E and NE winds. It
would indeed except for the trees surrounding it and the neighborhoods beyond the trees. THere is one point if you're on a N->S line (if you're
lucky enough to get the wind right) that you can feel a surge of air where the streets point to the trees on the neighborhood side.
So sad....so much space and not very useable.......
KC07 - Certified Chronic
Rev Shockwave | Brooza II 3 | BusterII's 3/4/5 | Hornet 1.5
Reactor II 5.5/6.9 | AccessXC 10 | Frenzy 12 | PsychoIII 13 | Speed2 12 | Speed3 15 | SA2.5 19
Bomba 15 | Phantom 15/18 | Venom 13 | Slingshot T3 9/11/14m
Skis, Ski Skates, Nobile RM Pro, MBS Pro 90, Kailolo 5' 11" Custom Phish, Kailolo 5'9" Custom Phish, Plyboard, Proof 151,
FlydoorM, F-One 198, Coyotes, Comp XR+, and the BEST WIFE IN THE WORLD!
I have not failed. I've just found 10,000 ways that won't work.
~ Thomas Edison
|
|
AD72
Posting Freak
Posts: 1085
Registered: 4-2-2009
Location: Davis, CA
Member Is Offline
|
|
So it does not matter even if you have a gust eating Arc, the wind shadow still causes problems?
|
|
Kamikuza
Posting Freak
Posts: 6417
Registered: 9-1-2005
Location: Shiga, JAPAN
Member Is Offline
|
|
I've heard it said that the wind shadow can be up to 7x as long as the height of the obstruction, downwind. And you get reflected shadow in front of
obstructions too
My local spot is a park between stop banks of a wide river, and I get clean flow above the stop bank but it can almost totally die at ground level ...
better than nothing though!
Wind shadow is either a dead spot or a messy turbulent air. I've tried a few locales and the kite would actually fly backwards ...!
Yeah... I got a kite. Or two...
|
|