Tag Archives: SR-71

Lockheed Martin SR-72 is Only a Plane on Paper

Lockheed Martin SR-72 is Only a Plane on Paper

An artist's conception of the proposed Lockheed Martin SR-72. Lockheed Martin Photo

An artist’s conception of the proposed Lockheed Martin SR-72. Lockheed Martin Photo

Lockheed Martin Skunk Works and Aerojet Rocketdyne have made a breakthrough in hypersonic propulsion technology, but the Mach 6.0-capable SR-72 remains more of aspiration than a real airplane.

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