Friday, November 21, 2008

ERM

Total Production: 15,100
Total Program's Cost: USD$1.5 billion

Also Known As
B-TERM II
BTERM
Extended Range Munition

Origin
United States of America

Program Status:
Under Development

Contractor/s
ATK Alliant Techsystems

Description: The Extended Range Munition (ERM) is a low-cost, long range five-inch (127mm) ballistic projectile being developed to be fired from US Navy's legacy Mark 45 naval guns. The US Navy ERM program is based on ATK's Ballistic Trajectory Extended Range Munition (B-TERM II). The projectile can hit a target at 60 nautical miles (111 km) with an Circular Error Probable (CEP) of about 20 meters.

ATK was awarded a $30 million 16-month contract in May 2004 for development and demonstration of the extended range projectile suitable for both the Mark 45 mod 4 and Mark 45 mod 2 naval gun systems. Naval long range engagements using legacy gun systems as well as offshore engagements are envisaged as key capabilities for naval forces in the 21st century.

Despite DD(X) destroyer will be provided with 155mm artillery suitable for the most demanding warfare scenarios, the US Navy intends to upgrade legacy fighting ships on the cheap developing and fielding new munitions with enhanced capabilities over existing ammunitions. That is the aim of the ERM program.

Specifications
Dimensions: Diameter 127 mm

Performance: CEP 20 m (66 ft), Max Range 111 km (60 nm)

News
Department of Defense Releases Selected Acquisition Reports

ATK Conducts Successful BTERM Engineering Test

Operators

United States of America / 15,100 / Planned

Image Gallery

Notes
(*) lead contractor
IOC: Initial Operating Capability
FOC: Full Operating Capability
CEP: Circular Error Probable
Comm: Commissioning Date
Meters (m) Kilometers (km) Nautic Miles (nm) Inch (in) Yard (yd) Foot (ft) Millimeter (mm)
Pound (lb) Kilogram (kg) kN (KiloNewton) Ton (t)
Meters per Second (mps) Kilometers per Hour (kph) Knot (kt) Miles per Hour (mph)
Liter (l) Galon (gl)
Year (yr) Minutes (min) Second (sec)
Shaft-Horse-Power (shp)

Last Updated: Saturday, October 25, 2008

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