Imagine an aircraft streaking across the sky at over Mach 12, which is twelve times the speed of sound! Moreover, it is powered not by conventional jet fuel but by hydrogen fuel, meaning that it ...

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 Key Points: The YF-12 was a twin-seat variant of Lockheed Martin’s A-12 reconnaissance aircraft, developed as an advanced long-range interceptor to surpass the Soviet MiG-25. -Despite its ...