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BAir defence
series of surface-to-air anti-ballistic missile and anti-aircraft defense systems
At a glance
Measured figures
Length
Single source9.14 m (30 ft 0 in)[source]
Sky Bow III only; retired Sky Bow I values not inherited · Length
Single sourceConfiguration
| Specification | 9K33 Osa | Sky Bow |
|---|---|---|
| Type | 6×6 amphibious SAM system[source] | series of surface-to-air anti-ballistic missile and anti-aircraft defense systems[source] |
| Place of origin | Soviet Union[source] | — |
| In service | 1971–present[source] | The TK-2, TK-3 and TK-4 are in service with the Military of the Republic of China[source] |
| Used by | See list of present and former operator[source] | Military of the Republic of China[source] |
Sky Bow II only; retired Sky Bow I values not inherited · Length
Single source5.673 m[source]Sky Bow II only; retired Sky Bow I values not inherited
5.498 m[source]Sky Bow III only; retired Sky Bow I values not inherited
radar mast stowed
Single source4.20 m (13 ft 9 in) (radar mast stowed)[source]
Diameter
Single source209.6 mm (8 in)[source]
Sky Bow III only; retired Sky Bow I values not inherited · Diameter
Single sourceSky Bow II only; retired Sky Bow I values not inherited · Diameter
Single source0.42 m[source]Sky Bow II only; retired Sky Bow I values not inherited
0.4 m[source]Sky Bow III only; retired Sky Bow I values not inherited
Mass
Single source17.5 tonnes[source]
Sky Bow III only; retired Sky Bow I values not inherited · Mass
Single sourceSky Bow II only; retired Sky Bow I values not inherited · Mass
Single source1,135 kg[source]Sky Bow II only; retired Sky Bow I values not inherited
870 kg[source]Sky Bow III only; retired Sky Bow I values not inherited
Operational; Operational range
Single source500 km (311 mi)[source]
Sky Bow III only; retired Sky Bow I values not inherited · Range
Single sourceSky Bow II only; retired Sky Bow I values not inherited · Range
Single source150 km[source]Sky Bow II only; retired Sky Bow I values not inherited
200 km[source]Sky Bow III only; retired Sky Bow I values not inherited
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Wars |
|---|
Iran–Iraq War 1982 Lebanon War Angolan Civil War Western Sahara War Gulf War Russo-Georgian War First Libyan Civil War Syrian Civil War 2020 Armenian–Azerbaijani skirmishes Second Nagorno-Karabakh War Russo-Ukrainian War 2025 India-Pakistan conflict[source] |
| — |
| Designer | NII-20 Research Institute[source] | — |
|---|
| Designed | 1960–1972[source] | — |
|---|
| Manufacturer | Znamya Truda Plant[source] | National Chung-Shan Institute of Science and Technology (NCSIST)[source] |
|---|
| Produced | 1970–1988[source] | — |
|---|
| No. built | 1,200[source] | — |
|---|
| Variants | OSA-A, OSA-AK, OSA-AKM, OSA-M[source] | — |
|---|
| Main armament | 6 9M33, 9M33M1, 9M33M2 or 9M33M3 missiles[source] | — |
|---|
| Engine | D20K300 diesel[source] | — |
|---|
| Ground clearance | 400 mm (16 in)[source] | — |
|---|
| Warhead | Frag-HE[source] | — |
|---|
| Detonation mechanism | Contact and proximity[source] | — |
|---|
| Propellant | Solid propellant rocket motor[source] | — |
|---|
| Flight altitude | 12,000 metres (39,000 ft)[source] | — |
|---|
| Boost time | 2 s boost, then 15 s sustain[source] | — |
|---|
| Guidance system | RF CLOS[source] | — |
|---|
| Steering system | dual-thrust rocket motor[source] | — |
|---|
| Accuracy | 5 m[source] | — |
|---|
| Launch platform | 9P35M2[source] | Underground silos and mobile launch vehicles[source]Sky Bow II only; retired Sky Bow I values not inherited Towed quad launchers[source]Sky Bow III only; retired Sky Bow I values not inherited |
|---|
| Role | — | surface-to-air missile[source]Sky Bow II only; retired Sky Bow I values not inherited surface-to-air missile[source]Sky Bow III only; retired Sky Bow I values not inherited |
|---|
| Propulsion | — | Single-stage dual-thrust solid-fuel rocket motor[source]Sky Bow II only; retired Sky Bow I values not inherited Solid-fuel rocket motor[source]Sky Bow III only; retired Sky Bow I values not inherited |
|---|
| Guidance | — | Inertial with mid-course guidance update from ground-based phased array radar, Active radar homing ( ARH ) for terminal guidance[source]Sky Bow II only; retired Sky Bow I values not inherited |
|---|
| Introduced | — | 1997[source]Sky Bow II only; retired Sky Bow I values not inherited |
|---|
| Country of origin | — | Taiwan[source]Inventory Origin column; table 5, row 4, cell 2; revision 1370505017; retrieved 2026-09-30 |
|---|
| Reported operators |
| — |
|---|