9K33 Osa
| 9K33 Osa (NATO reporting name: SA-8 Gecko, SA-N-4 Gekko) | |
|---|---|
9A33BM3 transporter-launcher and radar vehicle of the upgraded 9K33M3 Osa-AKM. | |
| Type | 6×6 amphibious SAM system |
| Place of origin | Soviet Union |
| Service history | |
| In service | 1971–present |
| Used by | See list of present and former operator |
| Wars | |
| Production history | |
| Designer | NII-20 Research Institute |
| Designed | 1960–1972 |
| Manufacturer | Znamya Truda Plant |
| Produced | 1970–1988 |
| No. built | 1,200 |
| Variants | OSA-A, OSA-AK, OSA-AKM, OSA-M |
| Specifications (OSA-AKM) | |
| Mass | 17.5 tonnes |
| Length | 9.14 m (30 ft 0 in) |
| Width | 2.75 m (9 ft 0 in) |
| Height | 4.20 m (13 ft 9 in) (radar mast stowed) |
| Crew | 5 soldiers |
Main armament | 6 9M33, 9M33M1, 9M33M2 or 9M33M3 missiles |
| Engine | D20K300 diesel |
| Ground clearance | 400 mm (16 in) |
Operational range | 500 km (311 mi) |
| Maximum speed | 80 km/h (50 mph) 8 km/h (5.0 mph) (swimming) |
The 9K33 Osa (Russian: 9К33 «Оса»; English: "wasp"; NATO reporting name SA-8 Gecko) is a highly mobile, low-altitude, short-range tactical surface-to-air missile system developed in the Soviet Union in the 1960s and fielded in 1972. Its export version name is Romb.