Defense news websites and blogs ignited earlier this month when Lockheed Martin announced its successor to the famed SR-71 Blackbird spy plane, the hypersonic SR-72 aircraft. Lockheed has said a working demonstrator could be in the skies by 2030.Air Force Chief of Staff Gen. Mark Welsh acknowledged that hypersonic capabilities would be advantageous for the Air Force, but he had not spoken to Lockheed officials about the SR-72 and would not comment on whether the service was interested in the aircraft.
Nevertheless, he said he was interested in hypersonic technology.
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