Tag: mach 4

NASA Explores SR-71 Blackbird Modifications To Reach Mach 4

Imagine pushing the legendary SR-71 Blackbird to unprecedented speeds of Mach 4, or 2,660 mph, even if just for a brief, thrilling moment - that's exactly what NASA's Tim Conners explored in a conceptual study back in the 1990s. He dared to ask: what if the SR-71's airframe could be tweaked to shatter the world record for crewed jet-powered aircraft, which was then a staggering Mach 3.3?