USS Lake Champlain, a Ticonderoga-class Aegis guided missile cruiser, launched in 1987

The Aegis combat system is an integrated missile guidance system used by the United States Navy. It is both an integrated single ship system and a ship-to-ship network. It is also used by the Japanese Navy, Spanish Navy, and Norwegian Navy. The Royal Australian Navy and the South Korean Navy have selected the Aegis system for their new destroyers. Image File history File links Download high resolution version (2100x1409, 333 KB)031109-N-9769P-076 Pacific Ocean (Nov. ... Image File history File links Download high resolution version (2100x1409, 333 KB)031109-N-9769P-076 Pacific Ocean (Nov. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Ticonderoga class cruiser is a class of warships in the US Navy, first ordered and authorized in FY 1978. ... A guided missile is a military rocket that can be directed in flight to change its flight path. ... 1987 (MCMLXXXVII) was a common year starting on Thursday of the Gregorian calendar. ... A guided bomb strikes an underground facility Missile guidance technologies of missile systems use a variety of methods to guide a missile to its intended target. ... The United States Navy, also known as the USN or the U.S. Navy, is a branch of the United States armed forces responsible for conducting naval operations. ... The Japan Maritime Self-Defense Force ), or JMSDF, is the maritime branch of the Japanese Self-Defense Forces, tasked with the naval defense of Japan and formed following the dissolution of the Imperial Japanese Navy after World War II.[1] The force is based strictly on defensive armament, largely lacking... The Spanish Navy (in Spanish, Armada Española) is the maritime arm of the Spanish Military. ... Ranks Norwegian military ranks The Royal Norwegian Navy (often abbreviated as RNoN) is the branch of the Norwegian Defence Force responsible for naval operations. ... The Royal Australian Navy (RAN) is the naval branch of the Australian Defence Force. ... The armed forces of the Republic of Korea (aka ROK Armed Forces) consist of the: Republic of Korea Army (ROKA) Republic of Korea Navy (ROKN) Republic of Korea Air Force (ROKAF) Republic of Korea Marine Corps (ROKMC) Republic of Korea Maritime Police(Coast Guard) The military of South Korea is...

Development

Large screen displays on USS Vincennes, typical of early Aegis platforms

By the late 1960s, the U.S. Navy recognized that reaction time, firepower, and operational availability in all environments did not match the anti-ship missile threat. As a result, an operational requirement for an Advanced Surface Missile System (ASMS) was promulgated and a comprehensive engineering development program was initiated to meet that requirement. ASMS was re-named "Aegis" in December 1969 after the aegis, the shield of the Greek god Zeus. Image File history File linksMetadata Size of this preview: 741 × 600 pixels Full resolution (2254 × 1825 pixel, file size: 1. ... Image File history File linksMetadata Size of this preview: 741 × 600 pixels Full resolution (2254 × 1825 pixel, file size: 1. ... The fourth USS Vincennes (CG-49) is a U.S. Navy Ticonderoga class AEGIS guided missile cruiser. ... Ægis has entered modern English to mean a shield, protection, or sponsorship, originally from the name of the mythological protective shield of Zeus. ... A shield is a protective device, meant to intercept attacks. ... The bust of Zeus found at Otricoli (Sala Rotonda, Museo Pio-Clementino, Vatican) Greek mythology is the body of stories belonging to the ancient Greeks concerning their gods and heroes, the nature of the world and their own cult and ritual practices. ... The Statue of Zeus at Olympia Phidias created the 12-m (40-ft) tall statue of Zeus at Olympia about 435 BC. The statue was perhaps the most famous sculpture in Ancient Greece, imagined here in a 16th century engraving Zeus (in Greek: nominative: Zeús, genitive: Diós), is...

The name is sometimes spelled AEGIS, supposedly an acronym for phrases such as Advanced Electronic Guidance Information System. However, such attributions seem to be backronyms or fake etymologies. (It is also possible there has been some confusion with the EGIS software used by some AWACS aircraft.) The main manufacturer of the Aegis combat system, Lockheed Martin, makes no mention of it being an acronym. It has been suggested that this article or section be merged with Backronym and Apronym (Discuss) Acronyms and initialisms are abbreviations, such as NATO, laser, and ABC, written as the initial letter or letters of words, and pronounced on the basis of this abbreviated written form. ... A backronym or bacronym is a portmanteau of backward and acronym[1] coined in 1983. ... A fake etymology, is an invented explanation (etymology) for the origin of a word. ... The Erieye radar system, is an Airborne Warning and Control System (AWACS) developed by Ericsson of Sweden. ... The Airborne Warning and Control System (AWACS) is an aircraft system designed to carry out surveillance, and C2BM (command and control, battle management) functions. ... Lockheed/BAE/Northrop F-35 Lockheed Trident missile C-130 Hercules; in production since the 1950s, now as the C-130J Lockheed Martin (NYSE: LMT) is an aerospace manufacturer formed in 1995 by the merger of Lockheed Corporation with Martin Marietta. ...

Combat Information Center (CIC) consoles aboard USS Normandy, 1997.

The heart of the system is an advanced, automatic detect-and-track, multi-function three-dimensional passive electronically scanned array radar, the AN/SPY-1. Known as "the Shield of the Fleet", the Aegis high-powered (four megawatt) radar is able to perform search, tracking, and missile guidance functions simultaneously with a track capacity of over 100 targets at more than 100 nautical miles.^[1] The first Engineering Development Model (EDM-1) was installed in the test ship, USS Norton Sound, in 1973. The Aegis system uses missile uplink using the AN/SPY-1 radar for midcourse guidance of Standard missiles during engagements, but still requires the AN/SPG-62 radar for terminal guidance. This means that with proper scheduling of intercepts, a large number of targets can be engaged simultaneously. Image File history File links Size of this preview: 800 × 587 pixels Full resolution (2100 × 1542 pixel, file size: 1. ... Image File history File links Size of this preview: 800 × 587 pixels Full resolution (2100 × 1542 pixel, file size: 1. ... A Combat Information Center (CIC), or Action Information Center (AIC) is the tactical center of a warship, manned and equipped to collect, present, manage, evaluate and disseminate information for the use of the embarked flag officer, commanding officer, and control agencies. ... USS Normandy (CG-60) is a Ticonderoga-class cruiser in the United States Navy. ... A passive electronically scanned array, as opposed to AESA, is a phased array which has a central RF source (such as a magnetron, a klystron or a traveling wave tube), sending energy into (usually digitally-controlled) phase shift modules, which then send energy into the various emitting elements in the... This long range radar antenna, known as ALTAIR, is used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on the Kwajalein atoll. ... The AN/SPY-1 is a US naval radar system manufactured by Lockheed Martin. ... The megawatt (symbol: MW) is a unit for measuring power corresponding to one million (106) watts. ... USS Norton Sound (AV-11/AVM-1) was originally built as a Currituck-class seaplane tender built by Los Angeles Shipbuilding and Drydock Company in San Pedro, California. ... The AN/SPY-1 is a US naval radar system manufactured by Lockheed Martin. ... The Standard Missile is a type of surface-to-air missile (SAM) originally developed for the United States Navy. ...

The computer-based command-and-decision element is the core of the Aegis combat system. This interface makes the Aegis combat system capable of simultaneous operation against a multi-mission threat: anti-air, anti-surface and anti-submarine warfare. The Aegis system is being enhanced to act in a Theater Missile Defense role, to counter short- and medium-range ballistic missiles of the variety typically employed by rogue states (see Aegis Ballistic Missile Defense System). A BlueGene supercomputer cabinet. ... American troops man an anti-aircraft gun near the Algerian coastline in 1943 Anti-aircraft, or air defense, is any method of combating military aircraft from the ground. ... Anti-submarine warfare is a term referring to warfare directed against submarines. ... Diagram of V-2, the first ballistic missile. ... Rogue state is a term applied by some international theorists to states considered threatening to the worlds peace. ... Standard Missile - 3 (SM-3) is launched from the Pearl Harbor-based Aegis cruiser USS Lake Erie (CG-70). ...

Large screen displays on USS John S. McCain, circa 1997. Destroyers have two displays while cruisers have four.

The Navy built the first Aegis-equipped cruisers using the hull and machinery designs of Spruance-class destroyers. The first cruiser of this class was the Ticonderoga, which uses two twin-armed Mark-26 missile launchers, fore and aft. The commissioning of the sixth ship of the class, the Bunker Hill opened a new era in surface warfare as the first Aegis ship outfitted with the Martin Marietta Mark-41 Vertical Launching System (VLS), allowing a wider missile selection, more firepower, and survivability. The improved AN/SPY-1B radar went to sea in the Princeton, ushering in another advance in Aegis capabilities. The Chosin introduced the AN/UYK-43/44 computers, which provide increased processing capabilities. Image File history File links Size of this preview: 694 × 600 pixels Full resolution (2030 × 1755 pixel, file size: 404 KB, MIME type: image/jpeg) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Aegis combat system ... Image File history File links Size of this preview: 694 × 600 pixels Full resolution (2030 × 1755 pixel, file size: 404 KB, MIME type: image/jpeg) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Aegis combat system ... Categories: Stub | Arleigh Burke class destroyers ... USS Port Royal, a Ticonderoga-class guided missile cruiser, launched in 1994. ... The Spruance-class destroyer was developed to replace a large number of World War II-built - and Gearing-class destroyers, and was the primary destroyer built for the U.S. Navy during the 1970s. ... USS Ticonderoga (DDG/CG-47), fifth to bear the name, was a guided-missile cruiser, homeported in Pascagoula, Mississippi. ... USS Bunker Hill (CG-52) is a Ticonderoga class guided missile cruiser laid down by Litton-Ingalls Shipbuilding Corporation at Pascagoula, Mississippi on January 11, 1984, launched on March 11, 1985 and commissioned on September 20, 1986. ... Martin Marietta Corporation was founded in 1961 through the merger of The Martin Company and American-Marietta Corporation. ... The VLS cells on board USS San Jacinto. ... Categories: Military stubs | Ticonderoga class cruisers ... USS Chosin (CG-65) is a Ticonderoga-class cruiser in the United States Navy. ...

In 1980, a destroyer was designed using an improved sea-keeping hull form, reduced infrared, and radar cross-section and upgrades to the Aegis Combat System. The first ship of the Arleigh Burke class, the USS Arleigh Burke, was commissioned in 1991. Because the Aegis system dominates the ship's architecture, ships equipped with it are sometimes mistakenly called Aegis class ships. Image of two girls in mid-infrared (thermal) light (false-color) Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than that of visible light, but shorter than that of radio waves. ... The Arleigh Burke class of guided missile destroyers, one of the destroyer classes of the United States Navy, is built around the Aegis combat system and the SPY-1D multi-function phased array radar. ... USS Arleigh Burke (DDG-51), named for Admiral Arleigh Albert Burke, USN (1901-1996), is the lead ship of the her class of guided missile destroyers. ...

Flight II of the Arleigh Burke class, introduced in 1992, incorporates improvements to the SPY radar, and to the Standard missile, active electronic countermeasures, and communications. Flight IIA, introduced in 2000, added a helicopter hangar with one anti-submarine helicopter and one armed attack helicopter. The Aegis program has also projected reducing the cost of each Flight IIA ship by at least $30 million. A helicopter is an aircraft which is lifted and propelled by one or more horizontal rotors consisting of two or more rotor blades. ...

Iran Air Flight 655

Layout of the Combat Information Center of early Aegis Cruisers.

The Aegis system was involved in an incident in which USS Vincennes shot down Iran Air Flight 655 in 1988 resulting in 290 civilian fatalities. Image File history File links Size of this preview: 501 × 599 pixels Full resolution (814 × 973 pixel, file size: 51 KB, MIME type: image/png) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Aegis combat system ... Image File history File links Size of this preview: 501 × 599 pixels Full resolution (814 × 973 pixel, file size: 51 KB, MIME type: image/png) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Aegis combat system ... A Combat Information Center (CIC), or Action Information Center (AIC) is the tactical center of a warship, manned and equipped to collect, present, manage, evaluate and disseminate information for the use of the embarked flag officer, commanding officer, and control agencies. ... The fourth USS Vincennes (CG-49) is a U.S. Navy Ticonderoga class AEGIS guided missile cruiser. ... Iran Air Flight 655 (IR655) was a commercial flight operated by Iran Air that flew from Bandar Abbas, Iran to Dubai, UAE. On Sunday July 3, 1988, the aircraft flying IR655 was shot down by the U.S. Navy guided missile cruiser USS Vincennes between Bandar Abbas and Dubai, killing... 1988 (MCMLXXXVIII) was a leap year starting on Friday of the Gregorian calendar. ...

It was determined by a formal military investigation that the AEGIS system was fully operational and did not have any maintenance issues. The investigation ruled that had the Commanding officer relied on the full tactical data displayed by the AEGIS system, the engagement might never have occurred. Additionally, psychological effects of the crew subconsciously manipulating the data to fit a predefined scenario greatly contributed to the false identification. The investigation found that the AEGIS Combat System did not contribute to the incident, but did aid in the investigation by means of recorded target data. The discrepancies are as follows: The commanding officer (CO) is the officer in command of a military unit. ...

Iran Air Flight 655 (IR655) was a commercial flight operated by Iran Air that flew from Bandar Abbas, Iran to Dubai, UAE. On Sunday July 3, 1988, the aircraft flying IR655 was shot down by the U.S. Navy guided missile cruiser USS Vincennes between Bandar Abbas and Dubai, killing... Iran Air Flight 655 (IR655) was a commercial flight operated by Iran Air that flew from Bandar Abbas, Iran to Dubai, UAE. On Sunday July 3, 1988, the aircraft flying IR655 was shot down by the U.S. Navy guided missile cruiser USS Vincennes between Bandar Abbas and Dubai, killing... The fourth USS Vincennes (CG-49) is a U.S. Navy Ticonderoga class AEGIS guided missile cruiser. ... Iran Air Flight 655 (IR655) was a commercial flight operated by Iran Air that flew from Bandar Abbas, Iran to Dubai, UAE. On Sunday July 3, 1988, the aircraft flying IR655 was shot down by the U.S. Navy guided missile cruiser USS Vincennes between Bandar Abbas and Dubai, killing... Iran Air Flight 655 (IR655) was a commercial flight operated by Iran Air that flew from Bandar Abbas, Iran to Dubai, UAE. On Sunday July 3, 1988, the aircraft flying IR655 was shot down by the U.S. Navy guided missile cruiser USS Vincennes between Bandar Abbas and Dubai, killing... The Grumman F-14 Tomcat is a supersonic, twin-engine, two-seat, variable geometry wing aircraft. ... Iran Air Flight 655 (IR655) was a commercial flight operated by Iran Air that flew from Bandar Abbas, Iran to Dubai, UAE. On Sunday July 3, 1988, the aircraft flying IR655 was shot down by the U.S. Navy guided missile cruiser USS Vincennes between Bandar Abbas and Dubai, killing... Iran Air Flight 655 (IR655) was a commercial flight operated by Iran Air that flew from Bandar Abbas, Iran to Dubai, UAE. On Sunday July 3, 1988, the aircraft flying IR655 was shot down by the U.S. Navy guided missile cruiser USS Vincennes between Bandar Abbas and Dubai, killing... The Grumman F-14 Tomcat is a supersonic, twin-engine, two-seat, variable geometry wing aircraft. ...

Aegis in other navies

• Australia, under its Sea 4000 project to acquire three Air Warfare Destroyers, decided in August 2004 that the Aegis warfare system would be the core of the combat system for the new ships. In 2007 the Australian government is expected to decide between the Arleigh Burke design and the Alvaro de Bazán class design.
• Japan operates four Kongo-class destroyers of a modified Arleigh Burke design. Two improved units knowns as the Atago class are currently under construction.
• Norway is procuring five ships of Spanish manufacture which include a U.S. sourced Aegis system integrated onto the ships, as the Fridtjof Nansen class. The first unit of this type, Fridtjof Nansen, was launched on June 3, 2004.
• South Korea is building Aegis variants of its KDX destroyers, called KDX-III.
• Spain is currently operating five Alvaro de Bazán class Aegis frigates, with at least four in commission.

The Sea 4000 project instituted by the Australian Department of Defence intends to acquire three Air Warfare Destroyers for introduction into service starting in 2013. ... shelby was here 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... The Arleigh Burke class of guided missile destroyers, one of the destroyer classes of the United States Navy, is built around the Aegis combat system and the SPY-1D multi-function phased array radar. ... Alvaro de Bazán completes sea trials The Alvaro de Bazán class (also known as the F100 class of frigates) are a new class of AEGIS-equipped air defense frigates entering service with the Spanish Navy. ... The Kongō class of guided missile destroyers, a modification of the U.S. Navy Arleigh Burke class (Flight I), serves as the core ship of the Japan Maritime Self-Defense Force (JMSDF)s Escort Flotillas. ... USS McFaul (DDG-74) In naval terminology, a destroyer is a fast and maneuverable yet long-endurance warship intended to escort larger vessels in a fleet or battle group and defend them against smaller, short-range but powerful attackers (originally torpedo boats, later submarines and aircraft). ... The Arleigh Burke class of guided missile destroyers, one of the destroyer classes of the United States Navy, is built around the Aegis combat system and the SPY-1D multi-function phased array radar. ... The Atago class of guided missle destroyers is an improved version of the Japan Maritime Self-Defense Force (JMSDF)s Kongo class destroyers that are currently under construction. ... Fridtjof Nansen, shortly after launch The Fridtjof Nansen class of frigates, for the Royal Norwegian Navy, are a derivative of the Spanish Alvaro de Bazán class of AEGIS-equipped air defense frigates. ... Categories: Royal Norwegian Navy frigates ... June 3 is the 154th day of the year in the Gregorian calendar (155th in leap years), with 211 days remaining. ... shelby was here 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... A CGI image of a KDX-III destroyer The Ahn Yong-Bok class destroyers (also known as KDX-III) are guided missile destroyers under construction by the Republic of Korea Navy, and featuring the advanced Aegis combat system (baseline 7 phase 1 - Advanced Processor (4800 MIPS) and Distributed Processor (1600... Alvaro de Bazán completes sea trials The Alvaro de Bazán class (also known as the F100 class of frigates) are a new class of AEGIS-equipped air defense frigates entering service with the Spanish Navy. ... For the bird, see Frigatebird. ...

Possible Aegis-like Systems

• People's Republic of China currently operates two Type 052C Lanzhou guided missile destroyers, which may be similar to the American Aegis system.

The Type 052C destroyer (NATO code name Luyang II class, often referred to as Lanzhou class after the lead ship name) is a class of destroyer built by the Peoples Republic of China. ... A guided missile destroyer is, as the name suggests, a destroyer designed to launch guided missiles. ...

References

For the Manfred Mann album, see 2006 (album). ... August 10 is the 222nd day of the year (223rd in leap years) in the Gregorian calendar. ...

See also

• CIWS

Phalanx CIWS A Close-in weapon system (CIWS) is a naval shipboard weapon system for detecting and destroying incoming anti-ship missiles and enemy aircraft at short range (the threat(s) having penetrated the ships available outer defences). ...

External links

• AEGIS Weapon System MK-7 in the FAS Military Analysis Network.

• DDG-51 ARLEIGH BURKE-class in the FAS Military Analysis Network.

• AN/SPY-1. The Warfighter Encyclopedia. Warfighter Response Center (2003-10-08). Retrieved on 2006-08-10..

• AEGIS Weapon System MK-7. Jane's Information Group (2001-4-25). Retrieved on 2006-08-10..

• "MK 7 AEGIS FIRE CONTROL SYSTEM RADAR", FIRE CONTROLMAN, VOLUME 02--FIRE CONTROL RADAR FUNDAMENTALS. US NAVY. Retrieved on 2006-08-10. .