The U.S. Air Force flew a reconnaissance jet from the mid-'60s through 1990 that set a few long-standing speed and altitude records early in its service life.
The Paradox of Speed It seems logical that modern fighter jets would be faster than those that flew half a century ago.
National Security Journal on MSN
SR-72: The Air Force’s New Hypersonic Bomber?
The SR-72 “Darkstar” is envisioned as a Mach-6, air-breathing ISR platform—but could it strike? -Hypersonic speed complicates ...
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