The Kh-66 was effectively a heavy-warhead, beam-riding version of the K-8 (AA-3 'Anab') air-to-air missile rushed into service in Vietnam in 1968.
Kh-66 itu hulu ledak berat efektif, versi beam-riding K-8 (AA-3 'Anab') rudal udara-ke-udara ke layanan di Vietnam pada tahun 1968.