Nammo developing new rocket motor for IRIS-T SLX air-defense missile

The article describes Nammo pursuing a “totally new” rocket motor engine for Diehl’s next surface-launched IRIS-T variant (IRIS-T SLX), with a planned SIL firing test in 2027. A new motor can materially change kinematics (range/altitude/engagement envelope) and production scalability for air defense, indicating a notable missile subsystem innovation rather than routine procurement.