In a monumental stride for space exploration, L3Harris and NASA have successfully conducted a 500-second acceptance test for the new RS-25 engine, designed for the Artemis V mission. This powerful engine unleashed an astonishing 111% of its rated thrust, surpassing even the performance benchmarks set during the NASA Space Shuttle era.

Kristin Houston, President of Space Propulsion and Power Systems at Aerojet Rocketdyne, emphasized the significance of this achievement: “This successful acceptance test showcases our ability to not only replicate the RS-25's legacy of performance and reliability but also to incorporate cutting-edge manufacturing techniques and upgraded components.” She highlighted advancements such as a revamped main combustion chamber, an innovative nozzle, and a newly developed pogo accumulator assembly.

Houston passionately asserted, “Our propulsion technology is crucial for ensuring the U.S. remains at the forefront of lunar exploration, creating a lasting presence on the Moon, and solidifying our strategic interests in this pivotal frontier.”

The partnership between NASA and L3Harris began in 2015 when the space agency contracted them to reignite the design and production of the RS-25 engines for the Space Launch System (SLS) missions. Utilizing groundbreaking manufacturing approaches—like 3D printing—has not only improved cost efficiency by a remarkable 30% but also upheld the exceptional reliability and operational efficiency that the RS-25 engines are renowned for.

As we look ahead, the successful test of the RS-25 engine marks a vital milestone in the Artemis program and symbolizes America's enduring commitment to return humans to the Moon and beyond.