L3Harris and NASA Test Second Modernized RS-25 Engine for Artemis V Moon Mission

Credit: L3Harris

NASA and L3Harris Technologies have successfully test-fired the second new-production RS-25 engine, a critical milestone for the Artemis V mission to the Moon. The 500-second hot-fire test at NASA's Stennis Space Center saw the engine throttle up to 111% of its rated power, validating the performance of a unit built with advanced manufacturing that slashes production costs by 30 percent.

This successful test marks a pivotal shift in the engine supply for NASA's deep space exploration program. While the first four Artemis missions will use upgraded space shuttle-era engines, Artemis V will be the first to fly with a full set of newly manufactured RS-25 engines. These powerhouses are essential, with four required to launch a single Space Launch System (SLS) rocket, the most powerful rocket in the world.

The evolution in manufacturing is key to the program's long-term sustainability. This second flight-ready engine incorporates modern techniques, including 3D printing, which streamline production and significantly reduce costs compared to the complex manufacturing processes of the past. This approach ensures a robust and affordable engine supply for the decades-long endeavor to establish a permanent human presence on the Moon.

READ ALSO: https://www.modernmechanics24.com/post/archer-to-acquire-los-angeles-airport-as-air-taxi-hub

“As we approach America’s 250th anniversary next year, it’s fitting that we’re advancing the Artemis program that embodies the pioneering spirit of our nation,” said Kristin Houston, President of Space Propulsion and Power Systems at Aerojet Rocketdyne, L3Harris.

“By leveraging advanced manufacturing techniques, we’re delivering engines that are more cost effective while maintaining the power and reliability needed to propel Artemis missions to the Moon and beyond.”

The test at Stennis Space Center is part of a rigorous certification series to ensure the new engines meet the demanding requirements for SLS launches. The RS-25 is one of the most tested and reliable large rocket engines in history, with a proven track record from the space shuttle program. Now, the focus is on replicating that legendary reliability with greater efficiency and at a lower cost for the ambitious cadence of future Artemis missions.

WATCH ALSO: https://www.modernmechanics24.com/post/isro-gaganyaan-crew-parachute-validation

The data gathered from this hot-fire test will be meticulously analyzed by engineers from both L3Harris and NASA. This collaboration ensures that every component of the engine performs as expected under the intense temperatures and pressures of a launch. The success paves the way for the continued production and testing of the remaining engines needed not just for Artemis V, but for missions extending to Artemis IX and beyond, ultimately supporting NASA's goal of preparing for human missions to Mars.