Click the original article link here >>> Lockheed Martin’s mysterious SR-72 — the fastest plane ever

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. Built by Lockheed Martin in the 1960s, the SR-71 could reach speeds exceeding Mach 3 (above 2,200 mph). That’s over 3 times faster than the speed of sound. The recon jets went out […]

Business Insider