Phalanx CIWS Phalanx CIWS The Phalanx CIWS (Close-in weapon system, pronounced see-whizz) is an anti-missile system designed and manufactured by Raytheon Company. It is used by the United States Navy and on the vessels of over twenty international allied navies. It was developed as the final line of defense (terminal defense) against anti-ship missiles (AShMs), including terminal-maneuvering sea-skimmers. The first system was offered to the US Navy for evaluation on the USS Bigelow in 1977. It was accepted and production started in 1978, the first ship fully fitted out was the Coral Sea in 1980. The basis of the system is a 20mm M61 Vulcan gatling gun linked to a radar system for acquiring and tracking targets. The gun fires at over 4,500 rounds per minute (early models only fired 3,000 rounds per minute): it is mounted in a self-contained turret along with a automated fire control system. The system automatically searches, detects, tracks, engages and confirms kills using its computer-controlled radar system. The entire unit weighs 5625 kg or 6120 kg. The Navy has unofficially nicknamed the Phalanx CIWS R2-D2 after the prominent radar dome on top. Canadian Sailors have monickered CIWS as meaning "Christ, it Won't Shoot". It is the only deployed system which will automatically detect and engage targets with no human intervention. Phalanx has been developed through a number of different configurations. The basic style is the Block 0. The Block 1 (1988) offers various improvements in radar, ammunition, rate of fire and computing. Block 1A introduced a new computer system. The Block 1B PSuM (Phalanx Surface Mode, 1999) adds a forward looking infrared (FLIR) sensor to allow the weapon to be used against surface targets. This addition was developed to provide ship defense against small vessel threats and other "floaters" in littoral waters and to improve the weapon's performance against slower low-flying aircraft. The Block 1B also allows for human intervention to identify and target threats. The US Navy uses armor-piercing penetrator rounds, originally depleted uranium but now tungsten. All Phalanx systems hold 1500 rounds in their magazines. The US and Canada are in the process of upgrading all their Phalanx systems to the Block 1B configuration. The Block 1B is also used by international navies such as Japan, Egypt and Bahrain. External links US Navy fact file Most Popular Articles: Music    Musical Instruments    Guitar    Classical Music    History    Music Definition    Country Music    Rock Music    Pop Music    Hip Hop    Rap    DJ    Video Games    Casino Games    Poker    Blackjack    Casinos    Real Estate    Loan    Auction    eBay    Marketing    Search Engine Optimization    File Sharing    MP3    Music Industry    Kazaa    Internet    Supermodel    Fashion    Fashion Designers    Erotica    Modeling    Clothing    Boots    Shoes    Diamond Engagement Rings    Diamond    Rugs    Gospel Music    Affiliate    E-Commerce    Radio This article is licensed under the GNU Free Documentation License at http://www.gnu.org/copyleft/fdl.html You may copy and modify it as long as the entire work (including additions) remains under this license. You must provide a link to http://www.gnu.org/copyleft/fdl.html To view or edit this article at Wikipedia go to http://www.wikipedia.org/wiki/Phalanx_CIWS