Artemis III Propulsion: Core Stage Engine Installation Complete
NASA engineers have finalized the installation of four historic RS-25 engines onto the SLS core stage, readying the vehicle for the Artemis III lunar landing mission.
Hardware Integration Log: SLS Core Stage
The infrastructure for humanity’s return to the lunar surface has reached a critical assembly milestone. According to NASA Breaking News, engineers at the Michoud Assembly Facility in New Orleans have completed the installation of four RS-25 engines onto the Space Launch System (SLS) core stage designated for the Artemis III mission.
These four liquid-fuel engines serve as the primary propulsion for the 212-foot-tall core stage, which will provide over two million pounds of thrust during its eight-minute climb to orbit. The installation process concludes a complex integration phase where the propulsion systems were structurally secured to the engine section and interfaced with the vehicle’s intricate pneumatic and electrical grids.
Flight Heritage Reutilized
The RS-25 units selected for Artemis III carry significant operational history. This specific quartet includes hardware with flight heritage from the Space Shuttle Program, refurbished and upgraded to meet the higher performance requirements of the SLS architecture. By utilizing these flight-proven assets, the mission leverages decades of propulsion data to ensure reliability during the upcoming crewed descent to the lunar South Pole.
Next Phase: Final Checkout
With the engines locked in place, technicians are now initiating functional testing of the entire integrated system. This includes verifying the gimbal actuators for thrust vector control and ensuring the integrity of the propellant lines. Once the final electronics checkouts are cleared, the core stage will be prepared for transport to the Kennedy Space Center in Florida, moving the Artemis III mission closer to its goal of landing the first woman and first person of color on the Moon.