Breaking the Mach 6 barrier. The USAF SR-72 Darkstar concept is built for pure speed
For decades, the idea of a successor to the SR-71 has stirred the imagination of pilots, engineers, and anyone fascinated with flight at the edge of possibility. The SR-72, often …
Breaking the Mach 6 barrier. The USAF SR-72 Darkstar concept is built for pure speed Read More