The Osa was the first mobile air defense missile system incorporating its own engagement radars on a s… 展开

• 9K33 "Osa" (US DoD designation SA-8A "Gecko") began development in 1960 and was introduced in 1971–1972 with four exposed 9M33 missiles per 9A33B TELAR and maximum range of 12 km (7.5 mi).
• 4K33 "OSA-M" (… 展开

Engagement range for early versions is approximately 2–9 km (1.3–5.6 mi) with engagement altitudes of between 50 and 5,000 m (164–16,400 ft). The 9M33M2 "Osa-A" missile extends the ranges to 1.5–10 km (1–6.… 展开

• 1S51M3 ("Land Roll") – C band target acquisition radar, H band conical scan target tracking radar and two J band pulse mode fire control radars (range 35 km/22 mi for acquisition, 30 km/19 mi for tracking and 25 km/16 mi for gui… 展开

Produced by the Soviet Union/Russia, the system was exported to many countries, including Cuba, Greece (from the former East Germany), Poland, Syria, Ecuador and Iraq.
During the 1982 Lebanon war in which Syrian air defens… 展开