Distictive black highspeed reconniassance aircraft designed by C.L.(Kelly) Johnson and his design team at Lockheed, entered sevice in 1966. This aircraft still holds a number of records. It was officially retired from service in 1990, but has been flown by N.A.S.A since. Its impressive performance with a speed in excess of mach 3 and a service ceiling 80000ft, makes this aircraft still one of the worlds most advanced dispite its age.