An SR-71 flies at the speed of more than Mach 3.5.
2200 mph
3.5
Stratosphere
the stratosphere!
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
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.
I think they can fly pretty fast.
humming birds fly so fast because they are so fast
Black