NASA used the SR-71 Blackbird in the 1990s to study high-speed flight, propulsion, sonic booms and hypersonic technologies at ...
The Lockheed SR-71 Blackbird is the fastest air-breathing manned aircraft in the world. It is also one of the most fearsome reconnaissance aircraft, able to outrun threats from the Soviet Union at ...
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 ...