How many feet per second can sr71 blackbird fly?

The SR-71 Blackbird is capable of flying at speeds exceeding Mach 3, which translates to approximately 2,200 miles per hour. This means it can reach speeds of around 3,600 feet per second. Its incredible speed allowed it to perform reconnaissance missions at altitudes of up to 85,000 feet, making it one of the fastest aircraft ever built.