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by MidKnightt
August 7, 2015
Attempts to make hypersonic scramjets have so far ended in failure, but that’s not going to stop Lockheed from working on a 4,500-mph drone meant to be the SR-72.
Source: Lockheed Gets NASA Funding to Build the SR-72 Hypersonic Spy Drone
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Attempts to make hypersonic scramjets have so far ended in failure, but that’s not going to stop Lockheed from working on a 4,500-mph drone meant to be the SR-72.
