Yuzhnoye RD-809K
Yuzhnoye RD-809K development liquid rocket engine based on RD-8 steering-engine assemblies for prospective Mayak-family upper stages; Yuzhmash publishes preliminary one-chamber LOX/kerosene performance and restart data.
Identity
- Aliases
- RD-809KRD809K
- Domains
- spaceflight
- Identity Level
- model
- Kind
- liquid-rocket-engine
- Name
- Yuzhnoye RD-809K
- Status
- development
Details
- Description
- Yuzhnoye RD-809K development liquid rocket engine based on RD-8 steering-engine assemblies for prospective Mayak-family upper stages; Yuzhmash publishes preliminary one-chamber LOX/kerosene performance and restart data.
- Developers
- Lineage
- Note
- Yuzhmash states that RD-809K is based on RD-8 steering-engine assemblies; this records the documented technology boundary without asserting identical performance or a vehicle installation.
- Related Propulsion System
- Relationship
- technology-derived-from
- Sources
- Nested value
- Manufacturers
- Propellants
- liquid oxygenkerosene
- Rocket Specs
- Chamber Count
- 1
- Restartable
- Yes
- Vacuum Specific Impulse S
- 352
- Vacuum Thrust Kn
- 0.098
Links
Assets & Meta
- Creation Time
- August 14, 2026 at 22:51:07 UTC
- Updated Time
- August 14, 2026 at 22:51:07 UTC
Other
- Sources
- Accessed Date
- 2026-08-14
- Note
- Yuzhmash identifies RD-809K as a separate staged-combustion one-chamber engine based on RD-8 steering assemblies for Mayak-family upper-stage control, with LOX/kerosene propellants, 10 kgf vacuum thrust, 352 s vacuum specific impulse, and two restarts; the page labels the characteristics preliminary.
- Publisher
- Production Association Yuzhny Machine-Building Plant
- Title
- Liquid rocket engine RD-809K