Summary: The Lockheed YF-12, developed in the late 1950s and early 1960s, was a groundbreaking interceptor designed to counter Soviet bombers during the Cold War. -Capable of reaching speeds of Mach 3 ...

Summary and 3 Points You Need to Know: The YF-12A, developed by Lockheed Martin’s Skunk Works in the early 1960s, was a pioneering aircraft that combined early stealth features with unmatched speed.