RL10C-2
RL10C-2 is a liquid-hydrogen/liquid-oxygen upper-stage engine for the SLS interim cryogenic propulsion stage. NASA identifies it as a close derivative of RL10B-2, with an upgraded ignition system and active propellant utilization control to improve efficiency. The ICPS uses one engine, and NASA identifies C-2 as the configuration for Artemis II and Artemis III.
Identity
- Domains
- spaceflight
- Identity Level
- variant
- Kind
- liquid-rocket-engine
- Name
- RL10C-2
- Status
- active
Details
- Description
- RL10C-2 is a liquid-hydrogen/liquid-oxygen upper-stage engine for the SLS interim cryogenic propulsion stage. NASA identifies it as a close derivative of RL10B-2, with an upgraded ignition system and active propellant utilization control to improve efficiency. The ICPS uses one engine, and NASA identifies C-2 as the configuration for Artemis II and Artemis III.
- Developers
- Family
- Manufacturers
- Propellants
- liquid hydrogenliquid oxygen
- Rocket Specs
- Cycle
- expander cycle
- Restartable
- Yes
- Vacuum Thrust
- …
Links
Assets & Meta
- Creation Time
- August 13, 2026 at 20:52:56 UTC
- Updated Time
- October 29, 2026 at 13:12:15 UTC
Other
- Sources
- Accessed Date
- 2026-08-13
- Publisher
- NASA
- Title
- Space Launch System RL10 Engine
- Accessed Date
- 2026-08-13
- Publisher
- NASA
- Title
- Artemis II Reference Guide
- Accessed Date
- 2026-08-13
- Publisher
- NASA
- Title
- Space Launch System