"Yes, I agree. But, At the beginning, I think a model easy to buy for everyone (reproducibility) and cheap in case of crashes is a good start. More people will work with the code."

"There is a cheap chinese paraglider RC called "Parachute Sky".

http://www.rctoycraze.com/g-rc-planes-z/i-azi-hx255.html
http://www.imperialgiftline.com/RC_Toys/HX255.html
http://www.rctoyhouse.com/rc/rc_helicopter_sunchaser.html

I founded it here…"

"P. V. Zaitsev and A. M. Formal’skii,
"Paraglider: Mathematical model and control",
Doklady Mathmatics, 2008, volume 77, number 3, pages 1064-5624 (Print) and 1531-8362 (Online).
http://www.springerlink.com/content/h3h63137375hq712/"