Extended Range Guided Munition
The Extended Range Guided Munition was a
precision guided rocket-assisted 5-inch artillery shelldevelopment by Raytheonfor the U.S. Navy. The program was cancelled in March 2008 after twelve years of development and over 600 million dollars in funding [http://www.navytimes.com/news/2008/03/defense_ergm_032408/ Navy ends ERGM funding - Navy Times] ] . The developmental round was designated EX 171. [http://www.designation-systems.net/dusrm/app4/ergm.html Raytheon ERGM (5" Projectile MK 171) - Designation Systems] ] ERGM consisted of three major subsections; propulsion (rocket motor), warhead, and Guidance, Navigation and Control section. ERGM is fired from the 5 inch Mark 45 gun at which point the rocket moter would ignite and lift the munition to at least 80,000 feet when the fins and canards would deploy and guide the ERGM to the target based on GPSguidance. It was to be used on Arleigh Burke class destroyers (hulls DDG-81 through 112).
Despite the long development time the ERGM never worked as reliably as the older but more expensive laser guided
M712 Copperhead. During development, the ERGM failed several tests in which the tail fins failed to deploy, rocket motors did not ignite or the electronic components did not survive the stress of being shot from a deck gun. [http://www.navytimes.com/news/2008/03/dfn_ergm_032008/ Guided munition may be canceled - Navy Times] ] Rising cost was another likely factor in cancellation. The unit cost of the shell more than tripled, from $45,000 in 1997 to $191,000 by 2006, reducing the projected buy from 8,500 to about 3,150. BTERMis another U.S. Navy developmental round that includes GPS guidance in an artillery shell. XM982 Excaliburis a U.S. Army round in development.
* Caliber: 127 mm (5 in)
* Length: 1.55 m (5 ft 1 in)
* Weight: 50 kg (110 lb)
* Speed: >3000 km/h (1860 mph)
* Range: 110 km (60 nm)
* Accuracy: <20 m CEP independent of range.
Solid-propellant rocket motor.
* Warhead: 72
DPICM submunitions (EX 1) or unitary high-explosive.
1994- Program started.
December 2001- All-up round guided test flightof an ERGM at White Sands Missile Range, NM. [http://www.globalsecurity.org/military/systems/munitions/ergm.htm EX-171 ERGM Extended-Range Guided Munition - Global Security] ]
February 2005- Successfully test fired two tactical ERGM rounds.
April 2005- U.S. Navy closes original ERGM program and re-opens new competition to meet the requirement. [ [http://www.strategypage.com/dls/articles2005/20054172332.asp Navy Smart Shell Does a Crash and Burn - Strategy Page] ]
March 2008- Navy ends funding to Raytheon effectively killing the program.
Ballistic Trajectory Extended Range Munition
* [http://www.raytheon.com/products/ergm/ Raytheon Company: Products & Services: ERGM]
* [http://www.raytheon.com/feature/pgp/ Missile Systems - Precision Guided Projectiles - Raytheon]
Wikimedia Foundation. 2010.
Look at other dictionaries:
Ballistic Trajectory Extended Range Munition — The Ballistic Trajectory Extended Range Munition (BTERM) is a precision guided rocket assisted 5 inch artillery shell under development by Alliant Techsystems for the U.S. Navy. The program is an extension of the earlier Autonomous Naval Support… … Wikipedia
Long Range Land Attack Projectile — The Long Range Land Attack Projectile (LRLAP) is a developmental program to produce a precision guided 155 mm naval artillery shell for the U.S. Navy. The system is under development by Lockheed Martin Missiles and Fire Control, the prime… … Wikipedia
Vulcano (Munition) — Vulcano ist der Name einer präzisionsgelenkten Munitionsfamilie mit vergrößerter Reichweite für den Einsatz in Schiffsgeschützen. Sie befindet sich derzeit beim italienischen Unternehmen Oto Melara, einer Tochter der Finmeccanica, zunächst für… … Deutsch Wikipedia
XM1111 Mid-Range Munition — The XM1111 Mid Range Munition (MRM) is a developmental 120 mm precision guided munition for use by the Rheinmetall 120mm Gun (known as the M256 in the US Military) found on several tanks of western designs. It is also intended to fulfill a… … Wikipedia
United States Naval Gunfire Support debate — The United States Naval Gunfire Support debate (also known as the United States Naval Surface Fire Support debate) is an ongoing debate between the Navy, Marine Corps, Congress, and independent groups like the United States Naval Gunfire Support… … Wikipedia
Iowa class battleship — The Iowa class battleships were a class of six fast battleships ordered by the United States Navy in 1939 and 1940 to escort the Fast Carrier Task Forces that would operate in the Pacific Theater of World War II. Four were completed in the early… … Wikipedia
5"/54 caliber Mark 45 gun — 5 /54 caliber gun redirects here. For the earlier 5 /54 gun, see 5 /54 caliber Mark 42 gun. Mark 45 redirects here. For the torpedo, see Mark 45 torpedo. Mark 45 5 inch/54 caliber lightweight gun … Wikipedia
Raytheon Missile Systems — Company is a subsidiary of Raytheon Company. Headquartered in Tucson, Arizona, its president is Taylor W. Lawrence. Formerly, known as Hughes Missile Systems Company before acquired by Raytheon CompanyThe division s products include:* AIM 120… … Wikipedia
Artillerie Navale — en action : l USS Iowa dans un exercice de tir près de Porto Rico. L artillerie navale désigne l artillerie qui est utilisée sur les navires de combat. L artillerie désigne les armes collectives ou lourdes servant à envoyer, à grande… … Wikipédia en Français
Artillerie navale — en action : l USS Iowa dans un exercice de tir près de Porto Rico. L artillerie navale désigne l artillerie qui est utilisée sur les navires de combat. L artillerie désigne les armes collectives ou lourdes servant à envoyer, à grande… … Wikipédia en Français