The New Stand-In Attack Weapon is Ready for F-35 GDC 5 years ago You need to be logged in to view this content. Please Log In. Not a Member? Join Us Northrop Grumman delivers SiAW test missile to US Air ForceDateDecember 31, 2024In relation toAir-Launched WeaponsNorthrop Grumman AGM-88G Long-Range Stand-in Attack Weapon (SiAW)DateJune 10, 2020In relation toAir-Launched WeaponsNorthrop Grumman Successfully Conducted Fourth AGM-88G AARGM-ER MissileDateJanuary 20, 2023In relation toAir-Launched Weapons