RD-0110
Chemical Automatics Design Bureau (KBKhA) RD-0110 (11D55) is a four-chamber liquid-oxygen/kerosene gas-generator upper-stage engine for Soyuz-family launch vehicles. KBKhA reports 30.38 metric-ton-force (approximately 297.9 kN) vacuum thrust, 326 s vacuum specific impulse, and 69.5 kgf/cm2 chamber pressure. The engine has been in Soyuz operation since 1967, with series production and continuing deliveries by Voronezh Mechanical Plant.
Identity
- Aliases
- RD-0110RD011011D55KBKhA RD-011011D55 engine
- Domains
- spaceflight
- Identity Level
- model
- Kind
- liquid-rocket-engine
- Name
- RD-0110
- Status
- active
Details
- Description
- Chemical Automatics Design Bureau (KBKhA) RD-0110 (11D55) is a four-chamber liquid-oxygen/kerosene gas-generator upper-stage engine for Soyuz-family launch vehicles. KBKhA reports 30.38 metric-ton-force (approximately 297.9 kN) vacuum thrust, 326 s vacuum specific impulse, and 69.5 kgf/cm2 chamber pressure. The engine has been in Soyuz operation since 1967, with series production and continuing deliveries by Voronezh Mechanical Plant.
- Developers
- Manufacturers
- Propellants
- keroseneliquid oxygen
- Rocket Specs
- Chamber Count
- 4
- Cycle
- gas-generator
- Vacuum Specific Impulse S
- 326
- Vacuum Thrust Kn
- 297.9
Links
Assets & Meta
- Creation Time
- August 1, 2026 at 10:16:36 UTC
- Updated Time
- August 22, 2026 at 07:43:09 UTC
Other
- Sources
- Accessed Date
- 2026-08-01
- Note
- Identifies RD-0110 (11D55) as manufactured by Voronezh Mechanical Plant and developed by KBKhA for Soyuz-2.1a.
- Publisher
- Voronezh Mechanical Plant
- Title
- Soyuz-2.1A rocket with Voronezh engines launched a Russian communications spacecraft
- Accessed Date
- 2026-08-01
- Note
- Documents the four RD-107A booster engines, one RD-108A core engine, one RD-0110 third-stage engine, and the RD-0124 replacement on Soyuz 2-1b.
- Publisher
- European Space Agency
- Title
- Soyuz at the European Spaceport
- Accessed Date
- 2026-08-01
- Note
- Provides the NASA vehicle description of RD-107, RD-108, and the single KBKhA RD-0110 on the Soyuz third stage.
- Publisher
- NASA
- Title
- Expedition 12 Press Kit
- Accessed Date
- 2026-08-22
- Note
- AIAA propulsion paper identifies RD-0110 as a gas-generator engine and distinguishes the staged-combustion RD-0124 replacement.
- Publisher
- AIAA
- Title
- Turbopumps for Gas Generator and Staged Combustion Cycle Rocket Engines