Spy aircraft typically have the highest operational ceiling, although these values, and often the aircraft themselves, are classified.
National Security Journal on MSN
Lockheed Designed the SR-71 I to Hunt Russian Bombers at Mach 3 — It Never Flew, and the U.S. Could Use One Today
In the early 1980s, Lockheed’s Skunk Works proposed converting the SR-71 Blackbird — the Mach 3+ reconnaissance aircraft that ...
It’s a rare opportunity indeed to take a flight to above 70,000 feet. It’s even rarer to do that in the venerable U-2 spy ...
National Security Journal on MSN
The CIA built 13 A-12 Oxcarts to spy on Russia — then lost 5 of them in accidents before the program was killed in 1968
In April 1962, Lockheed Skunk Works flew an A-12 Oxcart spy plane that required an entirely new American titanium industry ...
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