It reached a published speed of 2,196 miles per hour and it's unclassified speed was 3.3 mach. Actual top speed is now and forever will be classified. It flew so fast that the crews had to wait a few minutes after landing to let the skin cool down.
Top speed is Mach 3.3.
3.5
2200 mph
About 3 times the speed of sound. (3 mach)
What is SR71 auto insurance
Fast new way of reconnaissance a quick way to get in and get out safely and take away the need of fighter protection.
The SR-71 Blackbird is 2,193 miles per hour fast or Mach 3, three times faster than the speed of sound.
Black
SR71 Blackbird Model M-21: maximum speed: 2211miles/h Generally, the given answer for all models of the SR71 is: "In excess of Mach 3", or more than three times the speed of sound. see related links below for more info
Boeing
2193 mph
Stratosphere
the stratosphere!