The SR-72 is one of the most secretive projects currently in development. Often called the “Darkstar” based on its portrayal ...

Lockheed’s hypersonic successor to the legendary SR-71 Blackbird. Is this cutting-edge aircraft already flying under a veil ...

The SR-71 may be a retired Cold War-era enterprise ... Lockheed’s program manager Brad Leland noted that “Hypersonic aircraft, coupled with hypersonic missiles, could penetrate denied airspace ...

Lockheed calls the SR-72 a "game changer." The jet will be an unmanned hypersonic aircraft. Lockheed claims it will reach speeds topping Mach 6 — over 4,500 mph — and they also want the jet to ...

Lockheed calls the SR-72 a "game changer." The jet will be an unmanned hypersonic aircraft. Lockheed claims it will reach speeds topping Mach 6 (over 4,500 mph) and they also want the jet to do ...

The real SR-72 is rumored to be powered by Turbine-Based Combined-Cycle Hypersonic Engines, which would help it reach Mach 5 and potentially even Mach 10. Per an interview with Skunk Works ...

The "airplane concept and associated technology are targeted for a hypersonic ISR (reconnaissance)/strike aircraft that ... a successor to the SR-71 - the SR-72, which it expects to test in ...