YF-24B
YF-24B is the Long March 2F upper-stage integrated engine assembly; internal YF-22B/YF-23B main and vernier components remain intentionally unsplit. The FAA's Long March 2F vehicle table identifies one YF-24B assembly in the upper-stage propulsion position. China Manned Space reports a Long March 2F Y23 launch of Shenzhou-23 on 2026-05-24; combined with the exact FAA assignment, this supports active current-configuration use without asserting a new YF-24B production run or changing the actor boundary.
Identity
- Aliases
- YF-24BYF-24B upper-stage engine assembly
- Domains
- spaceflight
- Identity Level
- integrated-system
- Kind
- integrated-propulsion-system
- Name
- YF-24B
- Status
- active
Details
- Description
- YF-24B is the Long March 2F upper-stage integrated engine assembly; internal YF-22B/YF-23B main and vernier components remain intentionally unsplit. The FAA's Long March 2F vehicle table identifies one YF-24B assembly in the upper-stage propulsion position. China Manned Space reports a Long March 2F Y23 launch of Shenzhou-23 on 2026-05-24; combined with the exact FAA assignment, this supports active current-configuration use without asserting a new YF-24B production run or changing the actor boundary.
- Propellants
- unsymmetrical dimethylhydrazinenitrogen tetroxide
Links
- Official Url
- https://en.cmse.gov.cn/constitutes/longmarch2f/
Assets & Meta
- Creation Time
- August 1, 2026 at 16:13:31 UTC
- Updated Time
- August 21, 2026 at 00:36:45 UTC
Other
- Sources
- Accessed Date
- 2026-08-01
- Note
- NASA identifies the Long March 2F upper stage as the third stage of the human-rated vehicle; the exact YF-24B assignment is reconciled from the FAA vehicle table.
- Publisher
- NASA Space Mission Analysis Branch
- Title
- Long March 2F
- Accessed Date
- 2026-08-01
- Note
- The FAA launch-vehicle table identifies one YF-24B assembly for the Long March 2F upper-stage propulsion entry; no narrower YF-22B/YF-23B split is asserted here.
- Publisher
- Federal Aviation Administration
- Title
- 2017 Commercial Space Transportation Annual Compendium
- Accessed Date
- 2026-08-01
- Note
- CNSA's official Long March-2F page corroborates the vehicle identity and human-spaceflight application.
- Publisher
- China National Space Administration
- Title
- Long March-2F
- Accessed Date
- 2026-08-20
- Note
- China Manned Space's current Long March 2F page describes the human-rated configuration and its four liquid boosters and upper-stage architecture.
- Publisher
- China Manned Space Engineering Office
- Title
- Long March 2F
- Accessed Date
- 2026-08-20
- Note
- China Manned Space's current mission listing records Long March 2F Y23 carrying Shenzhou-23 launched on 2026-05-24; combined with the FAA's exact YF-24B assignment, this supports active current-configuration use without claiming a new YF-24B production run.
- Publisher
- China Manned Space Engineering Office
- Title
- Missions