YF-20B
Exact YF-20B liquid-propellant engine model used on the Long March 2F strap-on boosters and central core stage.
Identity
- Aliases
- YF-20BYF-20B liquid rocket engine
- Domains
- spaceflight
- Identity Level
- model
- Kind
- liquid-rocket-engine
- Name
- YF-20B
- Status
- unknown
Details
- Description
- Exact YF-20B liquid-propellant engine model used on the Long March 2F strap-on boosters and central core stage.
- Propellants
- unsymmetrical dimethylhydrazinenitrogen tetroxide
Assets & Meta
- Creation Time
- August 1, 2026 at 16:13:28 UTC
- Updated Time
- August 1, 2026 at 16:13:28 UTC
Other
- Sources
- Accessed Date
- 2026-08-01
- Note
- NASA identifies Long March 2F as a human-rated three-stage launch vehicle with four strap-on boosters, a central core stage, and an upper stage; the page links the CGWIC vehicle reference used to reconcile the stage architecture.
- Publisher
- NASA Space Mission Analysis Branch
- Title
- Long March 2F
- Accessed Date
- 2026-08-01
- Note
- The FAA launch-vehicle table identifies one YF-20B on each of four strap-on boosters, four YF-20B engines on the first-stage core, and one YF-24B upper-stage engine assembly for Long March 2F.
- 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; it is used with the NASA and FAA records rather than as a sole engine-variant source.
- Publisher
- China National Space Administration
- Title
- Long March-2F