KBKhA RD-0146D-1 LOX/LH2 upper-stage rocket engine
RD-0146D-1 is KBKhA's development-stage LOX/LH2 upper-stage engine for the KVTK heavy-class upper stage of Angara-A5V. The KBKhA product page identifies KBKhA as both development and production site and lists 9 tf (88.26 kN) vacuum thrust, 470 s specific impulse, and 71.5 kgf/cm² chamber pressure; the company says work on this modified variant began in 2018. It belongs to the closed-expander RD-0146 family and remains a development record, not a flown vehicle installation.
Identity
- Aliases
- RD0146D-1RD0146D1РД0146Д-1
- Domains
- spaceflight
- Identity Level
- model
- Kind
- liquid-rocket-engine
- Name
- KBKhA RD-0146D-1 LOX/LH2 upper-stage rocket engine
- Status
- development
Details
- Description
- RD-0146D-1 is KBKhA's development-stage LOX/LH2 upper-stage engine for the KVTK heavy-class upper stage of Angara-A5V. The KBKhA product page identifies KBKhA as both development and production site and lists 9 tf (88.26 kN) vacuum thrust, 470 s specific impulse, and 71.5 kgf/cm² chamber pressure; the company says work on this modified variant began in 2018. It belongs to the closed-expander RD-0146 family and remains a development record, not a flown vehicle installation.
- Developers
- Manufacturers
- Propellants
- liquid oxygenliquid hydrogen
- Rocket Specs
- Cycle
- closed expander
- Vacuum Specific Impulse
- …
- Vacuum Thrust
- …
Links
Assets & Meta
- Creation Time
- August 15, 2026 at 03:48:46 UTC
- Updated Time
- August 21, 2026 at 17:18:58 UTC
Other
- Sources
- Accessed Date
- 2026-08-21
- Note
- KBKhA's exact product page identifies RD0146D-1 as a distinct LOX/LH2 variant, lists KBKhA as both development and production site, and publishes 9 tf vacuum thrust, 470 s specific impulse, and 71.5 kgf/cm² chamber pressure; it also dates the modified-variant development work to 2018.
- Publisher
- Chemical Automatics Design Bureau (KBKhA)
- Title
- RD0146, RD0146D, RD0146D-1
- Accessed Date
- 2026-08-21
- Note
- KBKhA's Scientific and Technical Complex page identifies development of the LOX/LH2 RD0146D-1 for the heavy-class upper stage of the Angara-A5V launch vehicle.
- Publisher
- Chemical Automatics Design Bureau (KBKhA)
- Title
- Scientific and Technical Complex
- Accessed Date
- 2026-08-21
- Note
- KBKhA's production-capabilities page places RD0146D-1 in technological pre-production for a LOX/LH2 heavy-class upper stage, supporting development status while the product page identifies KBKhA as the production site.
- Publisher
- Chemical Automatics Design Bureau (KBKhA)
- Title
- Production capabilities