basic aeronautics/aerodynamics

http://www.free-ed.net/free-ed/Aviation/basicaerodynami01

.http://www.google.com/images?hl=en&q=basic+paper+airplanes&revid=1958172675&um=1&ie=UTF-8&source=univ&ei=-809TNzuOIievQO53eHnDg&sa=X

http://www.grc.nasa.gov/WWW/k-12/airplane/

http://www.allstar.fiu.edu/aero/flight52.htm