Northrop Grumman has delivered its Stand-in Attack Weapon (SiAW) test missile to the US Air Force, a weapon specifically designed to engage rapidly relocatable threats. This test missile will be used to verify the safe carriage and separation of the weapon from its launch aircraft. The US Air Force awarded Northrop Grumman a $705-million contract in 2023 to supply the new SiAW for its F-35 combat jet fleet. Under this agreement, the defense firm is also responsible for testing and integrating the SiAW to ensure compatibility with the fifth-generation fighter, with the aim of achieving initial operational capability by 2026.
