Rocketdyne J-2T toroidal/aerospike engine
Rocketdyne's J-2T was a historical toroidal/aerospike upper-stage engine development and test configuration. NASA records J-2T among full-scale-tested aerospike engines and documents Rocketdyne's toroidal-chamber program; no flight installation is asserted.
Identity
- Aliases
- J-2TRocketdyne J-2T
- Domains
- spaceflight
- Identity Level
- model
- Kind
- liquid-rocket-engine
- Name
- Rocketdyne J-2T toroidal/aerospike engine
- Status
- historical
Details
- Description
- Rocketdyne's J-2T was a historical toroidal/aerospike upper-stage engine development and test configuration. NASA records J-2T among full-scale-tested aerospike engines and documents Rocketdyne's toroidal-chamber program; no flight installation is asserted.
- Lineage
- Note
- NASA's aerospike studies describe the J-2T toroidal program as using J-2S turbomachinery and plumbing as its heritage; the edge is recorded as technology-derived-from rather than a direct derivative because J-2T introduced a new toroidal chamber and aerospike nozzle.
- Related Propulsion System
- Relationship
- technology-derived-from
- Sources
- Nested value
- Nested value
- Manufacturers
- Propellants
- liquid oxygenliquid hydrogen
Links
Assets & Meta
- Creation Time
- August 15, 2026 at 03:24:49 UTC
- Updated Time
- August 15, 2026 at 06:10:36 UTC
Other
- Sources
- Accessed Date
- 2026-08-14
- Note
- NASA's propulsion architecture review identifies J-2T as a full-scale-tested aerospike engine alongside XRS-2200.
- Publisher
- NASA Technical Reports Server
- Title
- NASA/TM-20220016292
- Accessed Date
- 2026-08-14
- Note
- NASA's upper-stage propulsion study documents Rocketdyne's toroidal-chamber aerospike program, its LOX/LH2 25,000-lbf demonstration hardware, and the historical test-program boundary.
- Publisher
- NASA Technical Reports Server
- Title
- Future Orbital Transfer Vehicle Systems Study