Fifty years old and it could still be the most improved manned interceptor on the planet…
By Steve Pace It was first publicly known as the A-11, then the YF-12A, but it actually began life in total secrecy as the AF-12. We’ll call it the YF-12A because that’s what its buyer, the U.S. Air Force, designated it and it was just one of the many derivatives of the Lockheed-built CIA-funded A-12 […]