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The S3V Zagon is a guided but un-propelled depth charge developed by the Russian firm Tactical Missiles Corporation. It was first unveiled at the 1992 MAKS Airshow as part of a marketing effort which resulted in China purchasing the weapon.
On 13 February 2017, the Zagon-2 version entered production for the Russian Ministry of Defence. [1] China unveiled a similar unnamed weapon in 2020. [2]
The S3V is an aerially deployed weapon, with a parachute system detached at the moment of splashdown. The sonar mounted in the nose is activated upon entering the water, searching for hostile submarines. It directs its control surfaces to maneuver the depth charge toward the target once it is located and identified. The developer has claimed that the S3V is around 1.2 to 1.6 times more effective than conventional unguided depth charges in shallow water (≤ 200 meters) and around 4 to 8 times more effective in deep water (up to 600 meters). The weapon is usually deployed by Tu-142, Il-38 and Ka-27 aircraft.
| Value | Zagon | Zagon-2 |
|---|---|---|
| Length (m) | 1.3 | 1.5 |
| Diameter (mm) | 211 | 232 |
| Weight (kg) | 94 | 120 |
| Warhead | 19 kg | 35 kg, shaped [2] |
| Depth, minimum (m) | 150 | ? |
| Depth, maximum (m) | > 600 | > 600 |
| Rate of descent (m/s) | 16.2 | ? |
| Angle of attack/descent | 60–90° | ? |
| Worst conditions allowed for aerial deployment | sea state 6 | ? |
| Homing radius (m) | 120 | 450 |
| Deployment platform | Fixed and rotary-wing aircraft | |
People's Republic of China 
Russia 
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| 324mm | |
|---|---|
| 350mm | |
| 450mm | |
| 533mm | |
| 650mm | |
| Rocket-propelled | |
| Guided depth charge | |
* = Under Development | |
