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ernieth(at)gmail.com
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 Posted: Mon Apr 16, 2007 11:55 am Post subject: Leading Edge Flaps on Eagle |
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Not directly related to zenith but interesting I hope.
http://www.eng.cam.ac.uk/photocomp/2006/noelly42_1.shtml
The image shows the potential importance of the leading edge flap seen deployed from the wing in the upper frame as the eagle comes in to land. It has been hypothesized that this flap acts as a high lift device, increasing the lifting force of the wing at low speeds and high angles of attack, in order to delay stall and afford the bird increased control during landings and manoeuvres. Recent wind tunnel experiments taking place in the Aerolab have shown that the flap is able to almost double the lift in a certain range of Reynolds number and angles of attack. In the flight test portrayed by the lower frame, the flap failed to deploy, and the bird missed his targeted landing by several inches. The photograph is comprised of images from two separate video clips taken in Denmark on a research trip to study a Steppe Eagle.
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dredmoody(at)cox.net
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| Posted: Mon Apr 16, 2007 12:14 pm Post subject: Leading Edge Flaps on Eagle |
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I'll bet a dollar that someone is out there at this very minute removing the leading edge flaps form his or her Steppe Eagle to reduce drag / increase cruise speed.
Dred
---- ernie <ernieth(at)gmail.com> wrote:
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Michael Valentine
Joined: 09 Jan 2006
Posts: 108
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| Posted: Mon Apr 16, 2007 12:41 pm Post subject: Leading Edge Flaps on Eagle |
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Yeah, but apparently at the cost of reducing the landing accuracy of said Eagle! Maybe you get both benefits with vertex generators, but I bet the Eagles hate the duct tape needed to stick them on.
Michael in NH
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On 4/16/07, dredmoody(at)cox.net (dredmoody(at)cox.net) <dredmoody(at)cox.net (dredmoody(at)cox.net)> wrote: [quote]--> Zenith-List message posted by: <dredmoody(at)cox.net (dredmoody(at)cox.net)>
I'll bet a dollar that someone is out there at this very minute removing the leading edge flaps form his or her Steppe Eagle to reduce drag / increase cruise speed.
Dred
---- ernie < ernieth(at)gmail.com (ernieth(at)gmail.com)> wrote:
[quote] Not directly related to zenith but interesting I hope.
http://www.eng.cam.ac.uk/photocomp/2006/noelly42_1.shtml [quote][b]
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