Raytheon Developing New Ramjet-Powered Artillery Round for U.S. Army

Raytheon Missiles & Defense, a business of Raytheon Technologies, has begun the first phase of developing a new ramjet-powered artillery round for the U.S. Army.

The round, called the XM1155 Extended-Range Artillery Projectile (ERAP), is being developed under an Other Transaction Agreement (OTA) awarded through the Combat Capabilities Development Command Armaments Center (CCDCAC) at Picatinny Arsenal, N.J. This effort was sponsored by the U.S. government under the DoD Ordnance Technology Consortium OTA (W15QKN-18-9-1008) with the National Armaments Consortium.

The new, cannon-launched, ramjet-powered artillery round will double the U.S. military’s range to greater than 100 kilometers, delivering precision strikes in all terrain and weather conditions. The tactical 155mm XM1155 will also be able to strike moving and stationary high-value targets on land and at sea.

The maneuverable, extended-range airframe will be compatible with the Army’s legacy and future 155mm artillery systems such as the new 58-caliber Extended-Range Cannon Artillery (ERCA).

Extended Range Cannon Artillery (ERCA)
M1299, a 155 mm turreted self-propelled howitzer currently being developed under the U.S. Army’s Extended Range Cannon Artillery (ERCA) program. (U.S. Army Photo)

Raytheon Missiles & Defense is teamed with Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek (TNO, “Netherlands Organisation for Applied Scientific Research”), an organization based in the Netherlands that will design the ramjet engine. Raytheon Missiles & Defense will integrate the engine with the system’s airframe, seeker, warhead and other components.

“The ramjet-powered artillery round will allow our nation’s military to strike farther and faster than anything our adversaries have in their arsenals,” said Tom Laliberty, vice president of Land Warfare & Air Defense.

The XM1155 builds on Raytheon Missiles & Defense’s experience with guided projectiles, including the Excalibur munition, an extended-range weapon that can engage targets precisely at all ranges and in adverse weather. The XM1155 will be fired from the same artillery cannon as Excalibur, including the U.S. Army’s new 58-caliber Extended-Range Cannon Artillery (ERCA).

Nammo ramjet powered 155 mm artillery ammunition concept
Nammo ramjet-powered 155 mm artillery ammunition concept. (for representational purpose only)

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