The AGM-181 Long Range Stand Off Weapon (LRSO) is a nuclear-armed

air-launched cruise missile An air-launched cruise missile (ALCM) is a cruise missile that is launched from a military aircraft. Current versions are typically standoff weapons which are used to attack predetermined land and naval targets with conventional weapon, conventio ...

under development by

Raytheon Technologies RTX Corporation, formerly Raytheon Technologies Corporation, is an American multinational aerospace and defense conglomerate headquartered in Arlington, Virginia. It is one of the largest aerospace and defense manufacturers in the world by reve ...

that will replace the

AGM-86 ALCM The AGM-86 ALCM is an American Aerodynamics#Incompressible aerodynamics, subsonic air-launched cruise missile (ALCM) built by Boeing and operated by the United States Air Force. This missile was developed to increase the effectiveness and surviv ...

Development

As of August 24, 2017,

Raytheon Raytheon is a business unit of RTX Corporation and is a major U.S. defense contractor and industrial corporation with manufacturing concentrations in weapons and military and commercial electronics. Founded in 1922, it merged in 2020 with Unite ...

and

Lockheed Martin The Lockheed Martin Corporation is an American Arms industry, defense and aerospace manufacturer with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta on March 15, 1995. It is headquartered in North ...

received separate $900 million contracts from the Department of Defense and

US Air Force The United States Air Force (USAF) is the Air force, air service branch of the United States Department of Defense. It is one of the six United States Armed Forces and one of the eight uniformed services of the United States. Tracing its ori ...

and are developing their own versions. Contracts were intended to end in 2022, when the Department of Defense will select one design to continue further developments. To replace the ALCM, the USAF planned to award a contract for the development of the new Long-Range Stand-Off weapon in 2015. Unlike the AGM-86, the LRSO will be carried on multiple aircraft. The LRSO program is to develop a weapon that can penetrate and survive integrated air defense systems and prosecute strategic targets. The weapons are required to reach initial operational capability (IOC) before the retirement of their respective ALCM versions, around 2030. The technology development contracts were to be submitted before the end of 2012. In March 2014 a further three-year delay in the project was announced by the Department of Defense, delaying a contract award until fiscal year 2018. The House Armed Services Committee moved to reject this delay. The delay was caused by financial pressures and an uncertain acquisition plan, and allowed by the long remaining service life left for the AGM-86 and lack of urgent necessity compared to other defense needs. The designations YAGM-180A and YAGM-181A have been allocated to the LRSO prototypes from Lockheed Martin and Raytheon Technologies respectively. The FY2020 defense authorization bill passed by Congress repealed the requirement for a conventional warhead version of the LRSO, leaving only the nuclear armed variant. The Air Force will use the

JASSM-ER The AGM-158 Joint Air-to-Surface Standoff Missile (AGM-158 JASSM) is a low detection standoff air-launched cruise missile developed by Lockheed Martin for the United States Armed Forces. It is a large, stealthy long-range weapon with a armor ...

and the longer-ranged JASSM-XR to fulfill the conventional standoff missile role. In April 2020, the Air Force announced plans to continue the Long-Range Standoff Weapon’s development with Raytheon Company as a sole-source contractor. On 1 July 2021, the USAF awarded Raytheon a cost-plus-fixed-fee contract for the engineering and manufacturing development stage of the LRSO program, with options that could take the contract to about

US$ The United States dollar (Currency symbol, symbol: Dollar sign, $; ISO 4217, currency code: USD) is the official currency of the United States and International use of the U.S. dollar, several other countries. The Coinage Act of 1792 introdu ...

2 billion. DefenseNews reported that the USAF could buy more than 1,000 AGM-181 missiles, which are projected to have a range in excess of . the missile had undergone at least nine test flights. In March 2023 the missile passed a

critical design review In the United States military integrated acquisition lifecycle the technical section has multiple acquisition technical reviews. Technical reviews and audits assist the acquisition and the number and types are tailored to the acquisition. Overall ...

Design

The AGM-181 will be integrated with the

B-52 The Boeing B-52 Stratofortress is an American long-range, subsonic, jet-powered strategic bomber. The B-52 was designed and built by Boeing, which has continued to provide support and upgrades. It has been operated by the United States Ai ...

and

B-21 The Northrop Grumman B-21 Raider is an American strategic bomber in development for the United States Air Force (USAF) by Northrop Grumman. Part of the Long Range Strike Bomber (LRS-B) program, it is to be a stealth aircraft, stealth interconti ...

bomber. The missile's nuclear warhead will be the W80-4 warhead.

Users

* (planned)

References

{{US missiles Cruise missiles AGM-181 Nuclear cruise missiles of the United States Stealth cruise missiles Nuclear air-to-surface missiles

Development

Design

Users

See also

References