Arena (active countermeasures system)

Arena
Arena Active Protection System
Type	Active protection system
Place of origin	Russia
Service history
Used by	Russia
Production history
Designer	Kolomna-based Engineering Design Bureau (KBM)
Designed	1993
Unit cost	US$300,000
Variants	Arena-E (export)
Specifications
Weight	1100kg

Arena (Russian: Арена) is an active protection system (APS) developed at Russia's Kolomna-based Engineering Design Bureau for the purpose of protecting armoured fighting vehicles from destruction by light anti-tank weapons, anti-tank guided missiles (ATGM), and missiles with top attack warheads. It uses a Doppler radar to detect incoming warheads. Upon detection, a defensive rocket is fired that detonates near the inbound threat, destroying it before it hits the vehicle.

Arena is the successor to Drozd, a Soviet active protection system from the late 1970s, which was installed on several T-55s during the Soviet war in Afghanistan. The system improved the vehicle's survivability rate, increasing it by up to 80%. Drozd was followed by Shtora in the late 1980s, which used an electro-magnetic jammer to confuse inbound enemy anti-tank missiles and rockets. In late 1994 the Russian Army deployed a large number of armoured fighting vehicles to Chechnya, where they were ambushed and suffered heavy casualties. The effectiveness of Chechen rocket-propelled grenades against Russian combat vehicles prompted the Kolomenskoye machine-building design bureau to devise the Arena active protection system in the early and mid-1990s. An export variant, Arena-E, was also developed. The system has been tested on the T-80UM-1, demonstrated at Omsk in 1997, and was considered for use on the South Korean K2 Black Panther main battle tank.