Different A-12: https://en.wikipedia.org/wiki/McDonnell_Douglas_A-12_Avenger_II https://en.wikipedia.org/wiki/McDonnell_Douglas_A-12_Avenger... You're thinking

Different A-12: https://en.wikipedia.org/wiki/McDonnell_Douglas_A-12_Avenger_II https://en.wikipedia.org/wiki/McDonnell_Douglas_A-12_Avenger... You're thinking of the first generation of what became the SR-71, which was made for the CIA, and used a different numbering scheme: https://en.wikipedia.org/wiki/Lockheed_A-12 https://en.wikipedia.org/wiki/Lockheed_A-12