The SR-71 was designed by a team of Lockheed personnel known as the "Skunk Works."
In the late 1950s, the SR-71's basic design originated in secrecy, with the aircraft's designation as A-11. Its existence was publicly announced on February 29, 1964 by President Lyndon Johnson, the time when he announced that an A-11 had flown at sustained speeds of over 2,000 miles per hour during tests at Edwards AFB, California. Its A-11 design development as a strategic reconnaissance aircraft began on February 1963. The first SR-71A arrives at Kadena AB to replace. The SR-71A's maiden flight (in "Big Tail" configuration) was on December 3, 1975.