This folder contains a repaint for the MiG-21Bis by GKS Studios in the colors of the MiG-21 F-13 that was flight-tested with the USAF serial 68-0965 under the ‘Have Doughnut’ programme between 23rd January and 8th April 1968. Tests took place at Groom Lake, Nevada by the Foreign Technology Division of the USAF Systems Command (AFSC). The origins of the aircraft are not clear. A specially instrumented North American T-39 Sabreliner was used to test its vulnerability to infrared-homing missiles. The MiG was pitched against most US types, including the Boeing B-52 to determine how it could be beaten. The final report suggested it was comparable to USAF types and although lacking range and payload, was very manoeuvrable with an excellent rate of climb and acceleration making it a good interceptor. Repaint by Jan Kees Blom.