Exploring New Industry Partners for Advanced Air Force Weapons
The United States Air Force is currently on the lookout for new industry partners capable of developing a Stand-in Attack Weapon (SiAW) or a similar system. This initiative aims to find systems that are compatible with the upcoming F-47 fighter and the B-21 Raider stealth bomber. A notice seeking sources was published on SAM.gov this Wednesday by the Air Force Life Cycle Management Center’s weapons division located at Eglin Air Force Base in Florida.
While this announcement is not an official solicitation, it serves as a market research tool to identify potential manufacturers who can offer systems with capabilities that match or exceed those of the current SiAW. Interested parties are expected to submit their responses by March 19.
Capabilities and Development of the SiAW
The SiAW is an advanced supersonic missile designed for air-to-ground strikes capable of swiftly neutralizing mobile targets such as integrated air defense systems, ballistic missile launchers, GPS jammers, and anti-satellite systems, especially in highly contested areas.
In September 2023, Northrop Grumman was awarded a significant $705 million contract to further develop and test the SiAW following a competitive initial phase involving major defense contractors like Lockheed Martin and L3Harris. The first SiAW test missile was delivered to the Air Force by Northrop Grumman in November 2024, and a successful separation test with an F-16 was conducted in December 2025.
The notice also specifies the requirement for compatibility with multiple aircraft platforms including the F-35, F-16, F-47, and B-21. This is notably the first instance where the F-47, Boeing’s Next-Generation Air Dominance fighter, has been mentioned in a public Air Force document in relation to a particular weapon system. The F-35 has been the initial platform for the SiAW, and there have been indications that the B-21 bomber will also be equipped to carry this weapon.
Timeline and Requirements for SiAW Production
The SiAW project is currently in a Middle Tier Acquisition Rapid Prototyping phase. The Air Force has outlined a 48-month timeline from the award of the contract, targeting the delivery of the first production lot by 2030. According to budget documents for fiscal year 2026, the prototype development is scheduled to continue into the first quarter of fiscal 2027.
The Air Force’s requirements for the SiAW include an extended standoff range, an advanced anti-radiation seeker capable of engaging frequency-agile and low-probability-of-intercept radar systems, precise GPS/INS navigation with anti-jamming features, sophisticated electronic counter-countermeasures, and the capability for reattack. The production capacity sought is up to 600 units per year, with a service life expectation of 15 years.
Strategic Importance Amidst Global Tensions
The initiative to seek additional manufacturing sources comes in the wake of Operation Epic Fury against Iran, which has raised concerns about the sufficiency of munitions stockpiles and the capacity of the industrial base, as detailed in a recent report by the Center for Strategic and International Studies released on Thursday.
The notice does not specify why the Air Force is looking for alternative sources for a SiAW equivalent or how this move might impact the ongoing Northrop Grumman program.
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Jamal Peterson reports on defense, aerospace, and tech policy. With a military background and a strategic mind, he dissects complex subjects with clarity, offering readers sharp, reliable insights.
