Workhorse RL-10 Engine to Power SLS Artemis Upper Stage

Aerojet Rocketdyne recently delivered four RL10 upper stage engines to NASA’s Stennis Space Center that will help power NASA’s Space Launch System (SLS) rocket as it carries astronauts aboard the Orion spacecraft to deep space. These missions are part of NASA’s Artemis program, which will land the first woman and next man on the Moon.
The SLS Block 1 rocket will use one RL10B-2 engine, the same engine currently used by the Delta IV rocket, as a part of the interim cryogenic propulsion stage (ICPS). As the rocket evolves to a more powerful Block 1B configuration, an exploration upper stage (EUS) will be added. The EUS will use four RL10C-3 engines, and the upgraded rocket will send astronauts tens of thousands of miles beyond the moon to explore deep-space.
Aerojet Rocketdyne is under contract to deliver 10 RL10 engines to NASA to support the Artemis program. One of the four engines that were recently delivered will be used to support the Artemis II mission that will use the ICPS upper stage, while the other three are slated to support future Artemis missions aboard the EUS. Delivery of the remaining six engines will be completed by 2021.
More info - www.nasa.gov/e...
Credits: Aerojet Rocketdyne / NASA