The Arena Active Protection System is an active countermeasure system
developed at Russia's Kolomna-based Engineering Design Bureau for the
purpose of protecting armored fighting vehicles from destruction by
light anti-tank weapons, anti-tank guided missiles, 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. The successful use by the Chechnyans of the rocket
propelled grenade against the Russian fighting 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.
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Today's selected anniversaries:
Julius Caesar and the Populares defeated Pompey and the Optimates at
the Battle of Pharsalus, solidifying his control over the Roman
The construction of a campanile, which would eventually become the
Leaning Tower of Pisa, began.
British Raj authorities arrested Mahatma Gandhi and various leaders of
the Congress Party, beginning the suppression of the Quit India
World War II: USAAF bomber Bockscar dropped an atomic bomb named "Fat
Man", devastating Nagasaki, Japan.
Followers of cult leader Charles Manson brutally murdered pregnant
actress Sharon Tate and four others in her Benedict Canyon, Los
Wiktionary's word of the day:
Coarse; lewd; vulgar
Wikiquote quote of the day:
The principal goal of education in the schools should be creating men
and women who are capable of doing new things, not simply repeating
what other generations have done; men and women who are creative,
inventive and discoverers, who can be critical and verify, and not
accept, everything they are offered.
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