YF-75DA
Chinese liquid-hydrogen/liquid-oxygen upper-stage rocket engine developed by China Aerospace Science and Technology Corporation. Official CASC material identifies YF-75DA as a new expander-cycle hydrogen/oxygen engine, first flown on the Long March 8A in February 2025, with thrust increased by more than 10 percent over YF-75D and reduced mass.
Identity
- Aliases
- YF-75DAYF-75DA hydrolox engine
- Domains
- spaceflight
- Identity Level
- model
- Kind
- liquid-rocket-engine
- Name
- YF-75DA
- Status
- active
Details
- Description
- Chinese liquid-hydrogen/liquid-oxygen upper-stage rocket engine developed by China Aerospace Science and Technology Corporation. Official CASC material identifies YF-75DA as a new expander-cycle hydrogen/oxygen engine, first flown on the Long March 8A in February 2025, with thrust increased by more than 10 percent over YF-75D and reduced mass.
- Propellants
- liquid hydrogenliquid oxygen
- Rocket Specs
- Cycle
- expander cycle
Links
Assets & Meta
- Creation Time
- August 14, 2026 at 00:20:55 UTC
- Updated Time
- August 14, 2026 at 00:20:55 UTC
Other
- Sources
- Accessed Date
- 2026-08-13
- Note
- CASC identifies YF-75DA as a new expander-cycle hydrogen/oxygen engine, first flown on Long March 8A in February 2025, and describes its thrust and mass improvements over YF-75D.
- Publisher
- China Aerospace Science and Technology Corporation
- Title
- New engine powers successful Long March 8A launch
- Accessed Date
- 2026-08-13
- Note
- CASC describes YF-75DA as the Long March 8A hydrolox upper-stage engine using expander-cycle technology.
- Publisher
- China Aerospace Science and Technology Corporation
- Title
- Long March 8A technical innovation and YF-75DA engine