- Category: Archive 2011
- Hits: 357
- Aerodynamic help needed!
- Add Bong
- 3 rd US World cup eastern perspective
- Another entry in the LDA field
How does something that's upside down hold me up ?
Ian, Dennis, Hermann,
I've read a thousand explanations for ground inversions of 0 - 500 ft high and still don't grasp where the support for a model comes from. In early morning and late evenings it's said that a model is "locked into an inversion layer". Do any of you know a simple, forthright answer to this phenomenon?
The Third US : an Eastern Perspective
CIAM has granted a 3rd world cup to countries outside , to level the playing field. As scores are based on the three best contests, for an American to win the world cup it would require winning two world cup contests in the States and traveling to Europe to net another large win. So, we – the American fliers – are the real beneficiaries.
The largest concentration of FAI flier outside California is in the Mid-West and the East. The main fields in these regions are Muncie Indiana and Wawayanda New York. Both flied are constrained by surrounding crops to flying between May and mid August. Muncie has two large contests – the inter City and the Nationals. Wawayanda has two Skyscraper’s contests called the Challenge and the Annual. Late spring and summer contests dovetail nicely into the academic year, allowing local junior fliers to participate and learn.
Ideally, the 3rd world cup contest should be held at on the off-year of a , and at Wawayanda on the alternate year. Agree that these two fields have with many blemishes; flyoffs are not easy, but making them is not easy either due turbulence off the surrounding trees and structures up wind. Both have plenty of hotels and restaurants.
And finally, the body that decides on these matters is AMA’s FAI committee.
Aram, while not wanting to start a regional polmemic, I have seen a bunch of Texans and even people from Colorado that probably do not consider themsleves to be either Easterner or Mid-Westerners ... :-)
Another entry in the LDA field
Rene used a Mark Drela designed airfoil that had been evolving over a number of years in a cooperative effort between, Drela, Victor Stamov, Rene and encouraged by Biggles.
For those not aware Dr Drela is a thought leader in low speed airfoils, well known for his work in the R/C and man powered flight fields and is currently
the Terry J. Kohler Professor of Fluid Dynamics
Department of Aeronautics and Astronautics
Massachusetts Institute of Technology