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 of service in 1998.

The SR-71C "Hybrid Trainer," nicknamed "The Bas****," was a unique Blackbird variant created by merging parts of two different SR-71 aircraft ... speed record of Mach 6.7 [5140.703 mph; 8273. ...