RL10A-5
RL10A-5 was the hydrogen/oxygen RL10 variant used as the four-engine main propulsion installation of the DC-X vertical-takeoff and vertical-landing demonstrator. NASA’s historical characteristics table identifies it as RL10A5 and lists approximately 60 kN of thrust per engine. This atmospheric demonstrator application is distinct from RL10 upper-stage installations.
Identity
- Aliases
- RL10A5RL-10A-5
- Domains
- spaceflight
- Identity Level
- variant
- Kind
- liquid-rocket-engine
- Name
- RL10A-5
- Status
- historical
Details
- Description
- RL10A-5 was the hydrogen/oxygen RL10 variant used as the four-engine main propulsion installation of the DC-X vertical-takeoff and vertical-landing demonstrator. NASA’s historical characteristics table identifies it as RL10A5 and lists approximately 60 kN of thrust per engine. This atmospheric demonstrator application is distinct from RL10 upper-stage installations.
- Family
- Propellants
- liquid oxygenliquid hydrogen
Links
Assets & Meta
- Creation Time
- October 29, 2026 at 15:19:47 UTC
- Updated Time
- October 29, 2026 at 15:19:47 UTC
Other
- Sources
- Accessed Date
- 2026-10-29
- Note
- Table 2–92 identifies four RL10A5 engines, LOX/LH2 and approximately 60 kN per engine for DC-X; narrative pp.80–81 describes the demonstrator.
- Publisher
- NASA
- Title
- NASA Historical Data Book, Volume VII