The first 9K33 Osa air defense system entered service with the Soviet Army in 1970 (officially adopted on October 4, 1971).
Destruction zone of air targets at the range of the Osa air defense missile system (Osa-AK/AKM air defense missile system):
. affected area by range: 2- 9 km (1.5 - 10 km)
. affected area by altitude: 50 - 5,000 m (25 - 5.000 m)
. target speed: 420 m/s (500 m/s)
. acceptable maneuvers of targets: 5 g (8 g)

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