Newps wrote:


Matt Whiting wrote:

Newps wrote:



Peter Dohm wrote:




I am pretty sure that there is also more wind six feet from the
graound than
there is three feet from the ground.


You're kidding.




Presumably there are plenty of statistics on the subject,



You'll never find that as it isn't true.


It absolutely is true. Wind velocity drops dramatically as it
approaches a surface.

I better get my digital handheld windmeter recalibrated becxause at 4
feet, the top of the wing on my Bo and six feet, the top of the wing on
a typical Cessna the wind is the same.

I would say so. The following article has a graph shows the
relationship on average between wind speed and height. The difference
between the wind at 1m (about the average height of your Bo wing) and at
2m (about the average height of a 182 wing) is about 10%.

http://www.rpc.com.au/products/windt.../wind_faq.html

Not a huge difference, but not no difference either.

Matt