The Secret Film of the CIA Supersonic Spy Planes 1st Flight

This declassified Lockheed Martin video shows the first flight of the A-12, the super-secret spy plane precursor of the SR-71 Blackbird.

Only 15 were made under the CIA's OXCART program. The story of this technological wonder is fascinating.

Source:
http://gizmodo.com/5581881/the-first-flight-of-the-cias-own-secret-blackbird