XRS-2200
Historical Boeing Rocketdyne XRS-2200 linear-aerospike liquid rocket engine demonstrator developed for NASA's X-33 advanced technology vehicle. NASA documents a pump-fed LOX/LH2 gas-generator cycle, more than 200,000 lbf (about 890 kN) sea-level thrust per engine, and a two-engine side-by-side X-33 installation concept; no flight installation is asserted here.
Identity
- Aliases
- XRS-2200RS-2200X-33 linear aerospike engine
- Domains
- spaceflight
- Identity Level
- model
- Kind
- liquid-rocket-engine
- Name
- XRS-2200
- Status
- historical
Details
- Description
- Historical Boeing Rocketdyne XRS-2200 linear-aerospike liquid rocket engine demonstrator developed for NASA's X-33 advanced technology vehicle. NASA documents a pump-fed LOX/LH2 gas-generator cycle, more than 200,000 lbf (about 890 kN) sea-level thrust per engine, and a two-engine side-by-side X-33 installation concept; no flight installation is asserted here.
- Developers
- Lineage
- Note
- NASA documents XRS-2200 as using rebuilt J-2 components; this records component technology heritage, not a direct engine derivative because XRS-2200 is a distinct linear-aerospike demonstrator.
- Related Propulsion System
- Relationship
- technology-derived-from
- Sources
- Nested value
- Nested value
- Manufacturers
- Propellants
- liquid oxygenliquid hydrogen
- Rocket Specs
- Cycle
- gas generator
- Sea Level Thrust Kn
- 890
Links
- Official Url
- https://ntrs.nasa.gov/citations/19990004339
Assets & Meta
- Creation Time
- August 14, 2026 at 23:46:35 UTC
- Updated Time
- August 15, 2026 at 06:14:08 UTC
Other
- Sources
- Accessed Date
- 2026-08-14
- Note
- NASA documents the XRS-2200 linear-aerospike engine as a pump-fed LOX/LH2 gas-generator engine delivering more than 200,000 pounds of sea-level thrust per engine and arranged as two engines on X-33.
- Publisher
- NASA Technical Reports Server
- Title
- X-33 Linear Aerospike Engine
- Accessed Date
- 2026-08-14
- Note
- NASA describes the XRS-2200's linear aerospike nozzle, LOX/LH2 gas-generator cycle, J-2/J-2S-derived components, and X-33 test architecture.
- Publisher
- NASA Technical Reports Server
- Title
- X-33 Linear Aerospike Engine and Vehicle Control
- Accessed Date
- 2026-08-14
- Note
- NASA records single- and dual-engine XRS-2200 development testing between 1999 and 2001 for the X-33 technology demonstrator.
- Publisher
- NASA Technical Reports Server
- Title
- RS-68 Engine Testing and Delta IV CBC Stage Tests