Key Points - The A-12 Oxcart, developed by Lockheed's Skunk Works for the CIA in the early 1960s, was the single-seat, Mach 3.29 (at 90,000 feet) precursor to the USAF's more famous SR-71 Blackbird.
Key Points - The official retirement of the SR-71 Blackbird in 1990 was driven more by internal US Air Force politics and budget priorities than by high operational costs or obsolescence, according to ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results