The story of the AIM-9 Sidewinder that Failed to Detonate, Got Embedded in a MiG-17 and was Reverse-Engineered into the Soviet AA-2 Atoll

The MiG-17 made a safe landing, the Sidewinder was extracted and the Communists promptly rushed it to the USSR, where the AIM-9 was carefully taken apart and then reverse-engineered, bit by bit. The AIM-9 Sidewinder is a supersonic, heat-seeking, air-to-air missile carried by fighter aircraft. It has a high-explosive warhead and an infrared heat-seeking guidance system. The Sidewinder was developed by the US Navy for fleet air defense and was adapted by the US Air Force for fighter aircraft use

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