RL10A-4-2
RL10A-4-2 on AeroVia
Identity
- Domains
- spaceflight
- Identity Level
- variant
- Kind
- liquid-rocket-engine
- Name
- RL10A-4-2
- Status
- retired
Details
- Family
- Propellants
- liquid hydrogenliquid oxygen
Links
Assets & Meta
- Creation Time
- August 1, 2026 at 07:54:06 UTC
- Updated Time
- August 1, 2026 at 07:54:06 UTC
Other
- Sources
- Accessed Date
- 2026-08-01
- Note
- The Atlas V 521/522 specification identifies a single- or dual-engine Centaur with RL10A-4-2 engines.
- Publisher
- Federal Aviation Administration
- Title
- Annual Compendium of Commercial Space Transportation 2016
- Accessed Date
- 2026-08-01
- Note
- ULA documents the 521 mission sequence and single-engine Centaur architecture.
- Publisher
- United Launch Alliance
- Title
- Atlas V Launch Services User's Guide