Northrop Grumman has delivered the USAF Stand-in Attack Weapon (SiAW) test missile, marking the start of the weapon’s flight test programme.

The delivery of the first test missile to the Air Force marks the beginning of flight testing to verify the safe interaction with the aircraft through captive carry and separation testing. Northrop Grumman announced on Nov.

The new Stand-in Attack Weapon is being positioned as a successor to Northrop's AGM-88G Advanced Anti-Radiation Guided Missile Extended Range, purpose built for the Lockheed Martin F-35 stealth fighter to hunt and destroy critical air defence assets.

Northrop Grumman has delivered the first Stand-in Attack Weapon test missile to the US Air Force to target relocatable threats.

Flight testing of the U.S. Air Force's Stand-In Attack Weapon (SiAW) missile is now set to begin following the delivery of an initial test article. Derived from the AGM-88G missile designed primarily to punch holes in enemy air defenses,