Summary and Key Points: The YF-12 was a twin-seat variant of Lockheed Martin’s A-12 reconnaissance aircraft, developed as an advanced long-range interceptor to surpass the Soviet MiG-25. -Despite its ...

An aircraft unlike any other appeared suddenly on Feb. 29, 1964. President Lyndon Johnson announced the existence of the Lockheed “A-11,” a real aircraft with a purposely fake designation. The ...

https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball&source=~!silibraries&uri=full=3100001~!195913~!0#focus ...

Built by Northrop and McDonnell Douglas for the Air Force's Advanced Tactical Fighter (ATF) program in the late 1980s, the YF-23 Black Widow II was a fifth-generation fighter jet that ticked all the ...

Three evolved F-35 concepts have been developed by aircraft designer Darold Cummings. Credit: Darold Cummings/ForzAero Losing the competition to develop the successor to its own F-22 presents Lockheed ...