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Lockheed Martin SR-72 - Wikipedia Lockheed Martin officials announced plans to build an optionally piloted scaled demonstrator, about 60 feet (~18 meters) long—comparable in size to a Lockheed Martin F-22 Raptor —powered by a single full-scale engine to achieve Mach 6 for several minutes
The Walls Are Closing in on the SR-72 Darkstar - 19FortyFive Key Points – The SR-72 “ Darkstar,” envisioned as a hypersonic successor to the iconic SR-71 Blackbird, is designed to fly at Mach 6, twice as fast as its predecessor, and capable of both surveillance and strike missions
SR-72 Darkstar: The Hypersonic Beast Redefining Air Supremacy! The SR-72 Darkstar, developed by Lockheed Martin's Skunk Works, is poised to become the fastest aircraft in history, reaching a staggering Mach 6 (4,000 mph or 6,400 km h) Designed for hypersonic reconnaissance and strike missions, the Darkstar is expected to outclass the legendary SR-71 Blackbird
SR-72 Darkstar: Inside the $335 Million Problem Stalling . . . The SR-72 Darkstar promises Mach 6 reconnaissance and strike capability—but turbine-based combined-cycle engines, brutal thermal loads, and spiraling $335M+ cost overruns are putting the entire