YF-12A, tail number 06936 on the Edwards ramp.
E-22047
YF-12A, tail number 06936 on the Edwards ramp. The Air Force needed technical assistance to get the latest reconnaissance version of the A-12 family, the SR-71A, fully operational. Eventually, the Air Force offered NASA the use of two YF-12A aircraft, 60-6935 and 60-6936. A joint NASA-USAF program was mapped out in June 1969.
1969NASA Photo › YF-12 Project Description