Kelly Johnson explains a modified two-seater A-12. In 1966 the aircraft and drone were redesignated M-21 and D-21
https://youtu.be/vwv6BiaUtDU?si=6eEG6INGzd8bNe4O&t=465
The U.S. Military's Jet-Powered Leap. A New Aviation Era (Documentary)
Includes some rare Bell XP-59A and Lockheed P-80 Shooting Star footage
https://youtu.be/I0Rf8_navA4
Lockheed F-80C Shooting Star. One Of Kelly Johnson/Skunk Works Aircraft. Photo taken during the Korean War (circa 1951). The main opponent of the P-80 was the MiG 15, and interestingly both of them had the same turbojet engine, both derived from Frank Whittle's invention. Frank Whittle was sent...