Kashtan Air Defence Gun/Missile System

The Kashtan Air Defence Gun/Missile System is intended to provide self-defence for surface ships against high precision weapons (anti-ship and anti-radar missiles, air bombs), fixed and rotary wing aircraft, as well as to engage small sea and coastal targets. The system is developed as a modular structure comprising of a 3R86E1command module and two 3R87E combat modules. The command module provides autonomous operation by detecting the threats, distributing the threat data, designating the targets to the combat modules and ensuring IFF procedures. The combat module automatically tracks the target with radar and television, calculates firing data and engages the target with missiles and guns. Each 3R87E combat module comprises a gun and missile mount, a radar & optical control system (NATO: Hot Flash/Hot Spot) which has a range of 4.4 nautical miles (8 km), a computing system and a power supply system. The integrated multi-channel control system provides simultaneous multi-target tracking in the radar and TV-optical modes.

The firing turret mounts two blocks of 30mm GSh-30k six-barrel automatic guns with a link-less feeding system and autonomous evaporation-type cooling system, and two SA-N-11 (navalised variant of the 9M311, NATO: SA-19) SAM clusters. The system also includes storing and reloading system to keep 32 SAMs in container-launchers in the vessel's under-deck spaces. Reloading time for a cluster of four SAMs does not exceed 1.5 minutes. The missile range is 1.5 to 8 km in range and 5 metres to 3.5 km in altitude. The missile has a warhead weight of 9 kg and the gun can fire ammunition at a rate of 1000 rounds a minute. The engagement envelope with the 30mm guns is 500 metres to 4 km in range and 5 metres to 3.0 km in altitude. The system can engage up to six targets simultaneously, one for each combat module. Combat modules can vary from one to six, depending on vessel displacement.