No drone like this new Lockheed aircraft has ever entered the skies. According to The Economic Times, the SR-72 will fly at ...

The SR-72 Darkstar is a hypersonic UAV for intelligence ... its cross-section for radar detection, the aircraft was painted with a special dark blue/black paint to increase internal heat emissions ...

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 ...