RD-191
NPO Energomash RD-191 is a single-chamber liquid-oxygen/kerosene engine with oxidizer-rich staged combustion, developed for the Angara launch-vehicle family from the RD-170/RD-171 architecture. The NPO Energomash technical paper reports a nominal 196 metric-ton-force thrust level (approximately 1,922 kN) and describes a 2009 Universal Rocket Module firing of about 233 s, including throttling from 100% to 37.6% nominal thrust.
Identity
- Aliases
- RD-191РД-191NPO Energomash RD-191Angara RD-191
- Domains
- spaceflight
- Identity Level
- model
- Kind
- liquid-rocket-engine
- Name
- RD-191
- Status
- active
Details
- Description
- NPO Energomash RD-191 is a single-chamber liquid-oxygen/kerosene engine with oxidizer-rich staged combustion, developed for the Angara launch-vehicle family from the RD-170/RD-171 architecture. The NPO Energomash technical paper reports a nominal 196 metric-ton-force thrust level (approximately 1,922 kN) and describes a 2009 Universal Rocket Module firing of about 233 s, including throttling from 100% to 37.6% nominal thrust.
- Developers
- Family
- Lineage
- Note
- NPO Energomash groups the single-chamber RD-191 with engines developed from the RD-170/RD-171 base.
- Related Propulsion System
- Relationship
- technology-derived-from
- Sources
- Accessed Date
- 2026-07-29
- Publisher
- NPO Energomash / Samara University repository
- Title
- Modern RD-171M, RD-180 and RD-191 liquid propellant rocket engines: program status and perspectives
- Manufacturers
- Propellants
- liquid oxygenkerosene
- Rocket Specs
- Chamber Count
- 1
- Cycle
- oxidizer-rich staged combustion
- Sea Level Thrust Kn
- 1922.1
Links
- Official Url
- https://www.roscosmos.ru/32087/
Assets & Meta
- Creation Time
- July 29, 2026 at 09:56:28 UTC
- Updated Time
- August 22, 2026 at 07:36:22 UTC
Other
- Sources
- Accessed Date
- 2026-07-29
- Publisher
- NPO Energomash / Samara University repository
- Title
- Modern RD-171M, RD-180 and RD-191 liquid propellant rocket engines: program status and perspectives
- Accessed Date
- 2026-07-29
- Publisher
- Roscosmos
- Title
- RD-191 production-facility project approved
- Accessed Date
- 2026-07-29
- Note
- Supports the legacy vehicle installation and the narrow canonical identity used for migration.
- Publisher
- Official vehicle or program source
- Title
- Angara A5 official vehicle reference
- Accessed Date
- 2026-07-29
- Note
- Supports the legacy vehicle installation and the narrow canonical identity used for migration.
- Publisher
- Official vehicle or program source
- Title
- Angara 1.2 official vehicle reference