Joint Strike Missile. The Joint Strike Missile (JSM) is a multi-role, air-launched cruise missile under development by the Norwegian company Kongsberg Defence & Aerospace and American company Raytheon Missiles & Defense. The JSM is derived from the Naval Strike Missile.

Development
A development of the Naval Strike Missile (NSM), the Joint Strike Missile (JSM) will feature an option for ground strike and a two-way communications line, so that the missile can communicate with the central control room or other missiles in the air. This missile will be integrated with the Lockheed Martin F-35 Lightning II. Studies have shown that the F-35 would be able to carry two of these in its internal bays, while four additional missiles could be carried externally.

Lockheed Martin and Kongsberg signed a joint-marketing agreement for this air-launched version of the NSM, as well as an agreement committing both parties to integrating the JSM on the F-35 platform. The project is funded by Norway and Australia. Kongsberg signed a contract for the first phase of development of the JSM in April, 2009, which is scheduled for completion within 18 months. The JSM will have multicore computers running the Integrity real-time operating system from Green Hills Software.

Compared with the Naval Strike Missile, the  Joint Strike Missile features:
 A larger warhead
 Form factor altered to allow the missile to fit into the F-35's internal bays
 The ability to attack sea and land targets
 Compatibility with various aircraft as launch platforms
 Improved range: estimates include  to more than 100 nmi low-low or more than  hi-low flight profiles

In November 2015, an F-16 Fighting Falcon successfully completed live-fire testing of the JSM at the Utah Test and Training Range.

The integration of the JSM with the F-35, and testing in the United States is facilitated by Lone Star Analysis, under long term contract with the Norwegian Ministry of Defense.

On 22 August 2024, Australia's Minister for Defence Industry and Capability Delivery, the Hon. Pat Conroy MP, announced a AU$850 million partnership agreement had been signed with Kongsberg's local subsidiary — Kongsberg Defence Australia — for the manufacture and servicing of the JSM (and NSM) for the Australian Defence Force (ADF) at a new purpose built factory. The factory is to be constructed at RAAF Base Williamtown near the city of Newcastle in New South Wales. Manufacturing of missiles is expected to commence from 2027.

Other variants

Kongsberg were studying methods to deploy the JSM from Norway's submarines, and found shaping the missile to fit into the F-35's confined bomb-bay also enabled it to fit in the Mark 41 Vertical Launching System. A VL-JSM could also compete with the Lockheed LRASM for the U.S. Navy's OASuW Increment 2 for a ship-launched anti-ship missile.

On 15 July 2014, Kongsberg and Raytheon announced that they had formed a teaming agreement to offer the JSM to the United States Navy for their Offensive Anti-Surface Warfare (OASuW) requirement; Raytheon would produce JSMs for the American market. A teaming agreement is an interim agreement between partners which commits them to their roles during the development and marketing stage of a project. It would generally be transformed into a formal sub-contracting agreement once an order for delivery has been placed.

The Navy plans to begin a competition for the OASuW requirement in 2017, which will likely pit the Kongsberg/Raytheon JSM against the Lockheed Martin AGM-158C LRASM.

Production 
The serial production began in 2021.

Production facilities

Norway - Kongsberg 
The main production facility for the JSM is located in Norway.

Australia - Kongsberg 
Prior to the formal order of the JSM by the Australian Air Force in September 2024, Kongsberg announced in August 2024 that it was building a facility where the missile would be manufactured, in collaboration with the Australian government.

United States - Kongsberg 
In September 2024, Kongsberg Defence and Aerospace announced that it was building a new missile production facility in James City County in Virginia. The plan is to have a facility that will assemble, upgrade and repair the Naval Strike Missile and the Joint Strike Missile. The investment will amount to USD $100 million,  and Kongsberg plans to hire 180 people.

Suppliers

United States 

 Raytheon manufactures some of the components of the JSM.
 Williams International supplies the F‐415 turbofan.

Operators

Future operators
 
 List of orders:
 September 2024, contract valued at NOK 1 billion.

 The Japan Air Self-Defence Force chose the JSM as ASuW weapon for the F-35A as it can be carried internally.
 List of orders: 
 March 2019, contract awarded to supply the JSM starting in April 2021.
 November 2019, follow-on order valued at NOK 450 million (USD $49 million).
 December 2020, follow-on order valued at NOK 820 million.
 November 2024, 4th order valued at NOK 1.9 billion.
 
 The Royal Norwegian Air Force ordered the JSM in October 2021 for their fleet of F-35 fighters. The initial delivery was expected for 2023. 
 
 The Department of Defense selected the JSM for the United States Air Force. List of orders:
 March 2023, plan to procure 268 JSM over five years:
 FY2024, 48 missiles ordered for a value of USD $141 million, to be produced in Norway.
 FY2025, 50 missiles ordered for a value of USD $165.9 million.

Potential operators 

 In December 2021, the Finnish Air Force selected F-35 as their future fighter jet, and have selected JSM among other weaponry. As of 2024, no firm order has been confirmed.
 
 In July 2024, the Italian parliament revealed that it would equip the 20 F-35B of the Italian Navy with the JSM missile and the MBDA SPEAR 3. These aircraft can be operated from the two aircraft carriers of the Italian Navy.

See also

References

External links 

Official NSM product page at KDA
Official JSM product page at KDA
Defpro.com:Norway conducted very successful NSM test firing (Febr 2009)
Missile.index search – Choose Development-Country: "Norway", then click "Search", then pick "NSM" from the results list (direct linking N/A)
Kongsberg test fires Naval Strike Missiles – Jane's Navy International, 8 August 2006
Capital Markets Day 2007 Kongsberg Defence & Aerospace

Anti-ship cruise missiles of Norway
Anti-ship missiles of Norway
Kongsberg Gruppen
Surface-to-surface missiles of Norway
Surface-to-surface missiles of the United States
Military equipment introduced in the 2010s
Anti-ship missiles of the United States