NASA’s SLS Rocket: The Launch Vehicle Stage Adapter

The cone-shaped launch vehicle stage adapter (LVSA) serves as a crucial connector between NASA's SLS (Space Launch System) core stage and the interim cryogenic propulsion stage (ICPS) for the first three Artemis missions. This adapter plays a key role during launch and ascent by providing structural support to the stages. It also protects sensitive avionics and electrical systems within the ICPS from the extreme vibrations and acoustic conditions experienced during the launch phase. Approximately 500 seconds into the flight, a frangible joint assembly is triggered, which separates the LVSA from the upper stage by severing the joint between the two. This separation is a critical step in the mission, allowing the ICPS to continue its trajectory into space.