In March 1960, even before delivery of the first A-12 prototype, Lockheed and the U.S. Air Force (USAF) discussed the development of an interceptor version of the A-12. Lockheed started development of the Lockheed YF-12 interceptor, as a lower-cost replacement for the F-108 Designed as the AF-12 under project Kedlock, the …
Read More »U.S. Air Force Aircraft that managed to score three YF-12 Blackbird kills during project Kedlock
