RD-0208
Chemical Automatics Design Bureau (KBKhA) RD-0208 is a single-chamber nitrogen-tetroxide/UDMH engine for the original Proton second stage, used as three main engines in the UR-500 second-stage block alongside one RD-0209 tank-pressurization companion engine. The recorded configuration has 569.7 kN vacuum thrust and 326 s vacuum specific impulse per engine. RD-0208 was later modernized into RD-0210 for the three-stage Proton.
Identity
- Aliases
- RD-0208RD0208Proton second-stage RD-0208KBKhA RD-0208
- Domains
- spaceflight
- Identity Level
- model
- Kind
- liquid-rocket-engine
- Name
- RD-0208
- Status
- retired
Details
- Description
- Chemical Automatics Design Bureau (KBKhA) RD-0208 is a single-chamber nitrogen-tetroxide/UDMH engine for the original Proton second stage, used as three main engines in the UR-500 second-stage block alongside one RD-0209 tank-pressurization companion engine. The recorded configuration has 569.7 kN vacuum thrust and 326 s vacuum specific impulse per engine. RD-0208 was later modernized into RD-0210 for the three-stage Proton.
- Developers
- Manufacturers
- Propellants
- nitrogen tetroxideUDMH
- Rocket Specs
- Chamber Count
- 1
- Vacuum Specific Impulse S
- 326
- Vacuum Thrust Kn
- 569.7
Links
Assets & Meta
- Creation Time
- July 29, 2026 at 11:40:15 UTC
- Updated Time
- August 22, 2026 at 07:49:29 UTC
Other
- Sources
- Accessed Date
- 2026-07-29
- Publisher
- Chemical Automatics Design Bureau (KBKhA)
- Title
- Three RD0208 plus one RD0209 engine block