In 2013, Lockheed Martin announced development of the successor to the SR-71 Blackbird spy plane. The SR-71 was capable of reaching speeds over three times the speed of sound, and the SR-72 is intended to have even more impressive specs. Following is a transcript of the video. The SR-72 is the successor to the SR-71 Blackbird spy plane, which was the fastest plane to ever exist.

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