RS-27A
Delta II 7000-series liquid-oxygen/kerosene main engine, a distinct RS-27 variant optimized for the Delta II first stage.
Identity
- Domains
- spaceflight
- Identity Level
- variant
- Kind
- liquid-rocket-engine
- Name
- RS-27A
- Status
- retired
Details
- Description
- Delta II 7000-series liquid-oxygen/kerosene main engine, a distinct RS-27 variant optimized for the Delta II first stage.
- Family
- Lineage
- Note
- NASA and ULA identify RS-27A as the Delta II 7000-series development of the RS-27 engine.
- Related Propulsion System
- Relationship
- direct-derivative-of
- Sources
- Nested value
- Nested value
- Propellants
- RP-1liquid oxygen
- Rocket Specs
- Chamber Count
- 1
Links
Assets & Meta
- Creation Time
- August 1, 2026 at 10:27:27 UTC
- Updated Time
- August 1, 2026 at 10:27:27 UTC
Other
- Sources
- Accessed Date
- 2026-08-01
- Note
- Names RS-27A as the Delta II main engine.
- Publisher
- NASA
- Title
- Delta II Data Sheet
- Accessed Date
- 2026-08-01
- Note
- Confirms the RS-27A first-stage installation and RP-1/LOX propellants.
- Publisher
- NASA
- Title
- Delta II, Industry Workhorse, Ready for Final Flight
- Accessed Date
- 2026-08-01
- Note
- Identifies the RS-27A on the Delta II 7925-10L first stage.
- Publisher
- United Launch Alliance
- Title
- ULA Marks Delta II 20 Year Anniversary with Successful NASA Kepler Launch