Northrop Grumman and U.S. Air Force Test Stand-in Attack Weapon Separation from F-16

EGLIN AIR FORCE BASE, Fla. - Dec. 11, 2025 - Northrop Grumman Corporation (NYSE: NOC), in collaboration with the U.S. Air Force, recently completed a separation test of the Stand-In Attack Weapon (SiAW) from an F-16 aircraft. The separation test was designed to validate the flight safety and aerodynamic performance of SiAWand illustrate the missile's progress towards integration with fifth-generation platforms such as the F-35. Safe separation from the F-16 is an important milestone for the missile and reinforces the system's design maturity.

A U.S. Air Force F-16 Fighting Falcon carries the SiAW. (Photo Credit: U.S. Air Force)

Experts:

Col. Gary E. Roos, senior materiel leader, Adaptive Weapons Division, Air Force Life Cycle Management Center: "The separation test of SiAWfrom the F-16 is intended to provide the United States Air Force validation of the weapon's safe separation characteristics and also generate invaluable data for optimizing its performance. The results can reinforce SiAW'sability to provide a critical advantage to warfighters in the face of evolving threats."

Chuck Johnson, vice president, advanced weapons, Northrop Grumman: "This milestone is a key step forward for the SiAWprogram. With the insights from the separation test, we will continue missile development and ultimately, deliver a critical capability to the warfighter. Our work ensures the U.S. Air Force will have a highly survivable precision strike weapon that will meet current and future mission needs."

Details on SiAW:

SiAWis an air-to-ground strike missile designed to rapidly engage and defeat time-sensitive, high-value threats in contested environments. SiAWexpands the target set for the U.S. Air Force to include heavily defended land targets. The missile is designed using digital engineering and features open architecture interfaces that will allow for rapid subsystem upgrades to field enhanced capabilities. SiAWis part of Northrop Grumman's broad portfolio of advanced weapons, including armaments, components, missiles, electronics and interceptors.

About Northrop Grumman:

Northrop Grumman is a leading global aerospace and defense technology company. Our pioneering solutions equip our customers with the capabilities they need to connect and protect the world, and push the boundaries of human exploration across the universe. Driven by a shared purpose to solve our customers' toughest problems, our employees define possible every day.