They were designed and built in the early 1960's and the first flight of an SR-71 took place on 22 December 1964
Boeing
What is SR71 auto insurance
The SR 71 was a very secret high speed, high altitude reconnaisance aircraft. Only 32 were built, at enormous cost.
Black
3.5
2200 mph
Stratosphere
2193 mph
the stratosphere!
It is the Lockheed SR-71 "Blackbird", a reconnaissance aircraft.
The SR-71 is far faster.
1599 is when it was built