[1] It was developed as a black projectfrom the Lockheed A-12 reconnaissance aircraft in the 1960s by Lockheed and its Skunk Works division. Renowned American aerospace engineer Clarence "Kelly ...

Lockheed's Model 12-A was a twin-engine transport plane that the aerospace firm manufactured between 1936 and 1942. It was designed as a smaller version of Lockheed's 10-A, sitting just over 36 ...