Aerojet R-4D-11
Aerojet R-4D-11 bipropellant auxiliary engine documented for the Orion European Service Module; unrelated R-4D variants and Orion capsule RCS engines remain separate or unmodeled.
Identity
- Aliases
- R-4D-11R-4D-11 auxiliary engine
- Domains
- spaceflight
- Identity Level
- variant
- Kind
- chemical-thruster
- Name
- Aerojet R-4D-11
- Status
- unknown
Details
- Description
- Aerojet R-4D-11 bipropellant auxiliary engine documented for the Orion European Service Module; unrelated R-4D variants and Orion capsule RCS engines remain separate or unmodeled.
- Propellants
- monomethyl hydrazinemixed oxides of nitrogen
Assets & Meta
- Creation Time
- August 4, 2026 at 22:47:32 UTC
- Updated Time
- August 4, 2026 at 22:47:32 UTC
Other
- Sources
- Accessed Date
- 2026-08-04
- Note
- NASA identifies eight R-4D-11 auxiliary engines built by Aerojet Rocketdyne on Orion's service module, in four sets of two, using MMH/MON for trajectory corrections and backup propulsion.
- Publisher
- NASA
- Title
- Fired Up: Engines and Motors Put Artemis Mission in Motion
- Accessed Date
- 2026-08-04
- Note
- NASA identifies Orion as the crew spacecraft for Artemis deep-space missions, establishing the installation's global significance and vehicle context.
- Publisher
- NASA
- Title
- Orion Overview