The US Air Force (USAF) has completed the first successful launch of the Stand-in Attack Weapon (SiAW), a new tactical air-to-surface missile developed by Northrop Grumman.
The launch was made by an F-16C fighter from the 40th Flight Test Squadron based at Eglin and took place on November 7 over the Gulf of Mexico.
The first test, however, involved only evaluating the missile’s separation from the aircraft since it was a “JTV” (Jettison Test Vehicle) type, that is, it did not contain a rocket motor or internal electronics.
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“Successful execution of this test was a testament to the outstanding teamwork from everyone involved,” said Maj. James Tipton, 780th Test Squadron assistant director of operations.
Entry into service in 2026
Despite the initial testing, the SiAW project is moving ahead of schedule, as Northrop Grumman is working to put the weapon into service as early as 2026.
The SiAW is a missile derived from the AGM-88G, the manufacturer’s advanced anti-radar missile.
It is designed to be carried in the internal compartment of the F-35A stealth fighter and launched from forward positions to destroy rapidly relocatable targets such as cruise and anti-ship missile launchers.
The U.S. Air Force, however, may also use it on the new B-21 Raider bomber and on fighters such as the F-15 and F-16. It is unclear whether the weapon could be supplied to allied countries.
