Aerodynamics

NASA Glenn Research Center [external website]
Airbus Discovery Website [external website]
Teaching Flight & Aviation website. [external website]

Aviation Theory

Aircraft (and wedge tailed eagles) usually take off into the wind. By facing into the wind, the air flows faster over their wings, allowing them to become airborne more easily, especially when they are heavy after eating. This aerodynamic technique helps them gain altitude faster and prevents them from crashing back into the ground. This method gives them better maneuvering control, avoiding the risk of a "downwind departure", which can cause them to crash.
Aviation Theory Australia Website [external website]

How the Lockheed SR-71 Blackbird Works

One of the best Youtube clips on the SR71 Blackbird (55mins)
www.youtube.com/watch?v=gkyVZxtsubM&t=458s [external website]
If you liked this video, you might also like the one on helicopters.
www.youtube.com/watch?v=u1lU64CG8p8 [external website]