Land Forces 24 728x90 WEB 240202 01Kongsberg Defence & Aerospace (KONGSBERG) has signed an Undefinitised Contract Action (UCA) with the United States Air Force (USAF) for the delivery of Joint Strike Missiles (JSM) for their F-35A aircraft. The contract has a not-to-exceed value of $141 million and deliveries will start in 2026.

“We are very pleased that the US Air Force – as the world’s largest operator of the F-35A Lightning II – has decided to procure JSM. JSM combined with the extremely advanced F-35 aircraft creates a formidable strike capability and validates JSM as the internal strike capability for the F-35A. The selection of JSMs by both the USAF and Royal Norwegian Air Force also fully supports NATO’s vision for interchangeability of equipment between allied nations” said Eirik Lie, President of Kongsberg Defence & Aerospace.

The Joint Strike Missile (JSM) is an air-launched strike missile and is designed to fit into the internal weapons bay and to fulfil complex missions, such as Anti-surface Warfare (ASuW) and land attack. The primary targets are typically highly defended and high-value assets on sea, in coastal waters or on land. JSM has an off-board, on-board and in-flight mission planning capability and can engage targets based on a pre-defined set of Rules-of-Engagement. Development of the JSM was contracted by the Norwegian Defence Materiel Agency (NDMA).


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  1. Interesting, I thought that the F35 was not currently able to use the JSM, which I believed was still being integrated and validated for the airframe and software. Has this changed, or will that come in another block upgrade?

    • I can only go by media releases and associated analysis that USAF F-35s will be able to carry them internally. Maybe this is in anticipation of the Block 4 upgrade that allows the aircraft to carry a larger variety of weapons.


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