Lockheed YF-12A > National Museum of the United States Air Force

The YF-12 was developed in the 1960s as a high-altitude, Mach 3 interceptor to defend against supersonic bombers. Based on the A-12 reconnaissance aircraft, the YF-12A became the forerunner of the

Lockheed YF-12: Photos, History, Specification

Lockheed D-21B > National Museum of the United States Air Force

Detailed tour around the Lockheed YF-12! The fighter version of

File:Lockheed YF-12A (2183418677).jpg - Wikipedia

Lockheed YF-12A > National Museum of the United States Air Force

National Museum of the U.S. Air Force - Can you guess the aircraft

Lockheed YF-12A > National Museum of the United States Air Force

Lockheed YF-12A Photograph by Greg Hager - Pixels

Aircraft Photo of 60-6935 / 06935, Lockheed YF-12A

Today in Aviation History: First Flight of The Lockheed YF-12A

The Lockheed YF-12A; Ultimate Interceptor - - Military Matters