While flying today (Sunday) the tips of my DP2.5 have a tendency to wrap in, causing the kite to collapse and drop to the ground. Could this be caused by the trees that surround the park where I fly?
Regards,
Chris

not familiar w that kite but a field bounded by trees is generally not a good place to fly--you will find turbulent, unpredictable winds and conditions there.......

Tips usually fold when there isn't enough wind to keep the kite inflated or when the winds are turbulent causing uneven pressure in the sail. How strong were the winds and how clean / bumpy are they?

Trees cause all sorts of havoc with the wind flow. I have some pine trees in one corner of my paddock, if I get to within 300-400 ft and I'm downwind, the kite falls out of the sky and I cannot relaunch in that area. As a very rough rule of thumb, keep about 10 times the height of the tree away. Further is better!

Turbulent wind can be better understood when thinking of the earths surface as a streambed. Friction layer objects in the path of surface flow create disturbances(eddies), which in turn alters the current into re-occurring waves(eddies).

Understanding these invisible forces will inevitably help you navigate each of these eddies individually; and soon you'll feel them and react before they even hit your kite.

Turbulence in a field is also a central agitator in producing greater lulls/crosswind. In greater wind the crosswind is eliminated; but the result is an exponential increase in turbulence(eddies) that will spank you senseless (unless you legit with your katana).


I have included a selection on turbulance from Flying Conditions: Micrometeorology For Pilots by Dennis Pagen. It should help you visualize these invisible forces so you may better combat them on the battlefield.

Micrometeorology for Pilots- Turbulance Part 1
Micrometeorology for Pilots- Turbulance Part 2

Dandre - what's the name of that book? Micrometero-blah blah?

Quote:

Originally posted by dandre I have included a selection on turbulance from Flying Conditions: Micrometeorology For Pilots by Dennis Pagen. It should help you visualize these invisible forces so you may better combat them on the battlefield.

Quote:

Originally posted by Kamikuza Dandre - what's the name of that book? Micrometero-blah blah?

:puzzled: :o

Note to self: Calculate shipping charges for new coffee brewer to Shiga, Japan with a "High Octane" switch.

Looks to be out of print, but still available through Amazon Marketplace and most likely the ABE network.

ATB,
Sam

Oh dude! The hotels at Wildwood create lull zones and turbo zones,when it is coming offshore. It is kind of like buggying in a videogame w/ invisible boost zones and glue traps. I guess you would have to experience it......:puzzled:

Nah, just send an IV machine :o I was skim reading so I wanted to check

Quote:

Originally posted by Kamikuza Nah, just send an IV machine :o I was skim reading so I wanted to check

Naaaahh.... I think you just wanted me to look up and post a purchase link.... very sneaky.

ATB,
Sam

Did you? I missed that too what is ABE? Aeronautical Book ... Expo?

Quote:

Originally posted by Kamikuza what is ABE? Aeronautical Book ... Expo?

ABE = ABE Books... no acronym to the best of my knowledge. International (US, Canada, UK, Germany, France, Italy, Spain, Australia, New Zealand) network of booksellers.

Good source for out of print and hard to find books. General URL is www.abebooks.com.

Localized version for the various countries can be found at the links at the bottom of the home page.

There is also a forum attached to the site for help in tracking down books that are particularly hard to find or if you are having problems remembering the details for a book.

ATB,
Sam

Sounds like a handy site ta!

... eBook version?

I think they have decided that Amazon and Barnes & Noble (which is just about done with gobbling up Borders now) have that base covered.

eBooks are fine, but there is something to be said for small book stores in out of way towns. The kind that have 3 or 4 cats roaming the aisles and sleeping in the reading chairs/shelf tops. There's one around here called "Bearly Read Books" thats like that.

'Sides there are some books that just don't translate well to eBooks. Two that come to mind are:
1. Painting With Light and Air, Applique Designs On Translucent Fabric (William Farber and Jara Krivanek)
   
2. Jewelry: Concepts And Technology (Oppi Untracht)... gotta love a book that weighs in at ~6 lbs.

ATB,
Sam

All good and well for you, even if you do have to suffer through that appalling language you call "American English" ... I have yet to win the fight to get Google to display in English here, let alone find a decent English bookstore
eBooks or at worst, .pdf!

http://www.amazon.com/gp/offer-listing/0936310030/ref=tmm_pa...
Bookfinders and more is the updated 1979 edition<big deal, meteorologists weighed in heavily on the updated edition and helped him with his models..


You can always find a cheap copy somewhere. Just look for the updated edition.
its an awesome book.com

Thankyou Dandre for the info. Although helpful and solves the problem, its a bit too technical. After all this is supposed to be a fun hobby!
Regards,
Chris

Hey I thought that was fun - but then, I like that kind of stuff too :bigok: