SR-72 Blackbird In Design By Lockheed Martin
With the retirement of the SR 71 Blackbird back in 1998, the hunt has been on for a replacement vehicle due to tensions between Russia and the US over the last few years
Lockheed Martin’s Skunk Works has now revealed that it is building a successor to the Blackbird: the SR-72 that will include a new hypersonic engine design that combines turbines and ramjets and is expected to be twice as fast as its big brother.
With a cruising speed of Mach 6 the SR-72 Blackbird will be unmanned and will travel above the earth at more than 80,000 feet while travelling at over 4,567 mph.
The need for the SR-72 has been detailed by the US air force and its thought that a supersonic aircraft loaded with supersonic missiles could penetrate enemy airspace and strike targets anywhere within an hour.
Fitted with HTV-2 Hypersonic demonstrator engines that have been tested to fly at more than 15,244 mph, the SR-72 will have reduced drag and is expected to be testing by 2018 and fully operational by 2030.
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