Soyuz-2.1b
Soyuz-2.1b is the higher-performance member of the modern Soyuz-2 launch-vehicle family. It combines the 2.1a digital flight-control and telemetry improvements with an RD-0124-powered third stage, enabling heavier payloads and larger fairings for crewless orbital missions from Baikonur, Plesetsk, and Vostochny.
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Identity
- Aliases
- Soyuz 2.1bSoyuz 2-1bSoyuz-2 stage 1BСоюз-2.1б
- Family Name
- Soyuz
- Full Name
- Soyuz-2.1b
- Status
- active
- Type
- rocket
- Variant Name
- 2.1b
Details
- Description
- Soyuz-2.1b is the higher-performance member of the modern Soyuz-2 launch-vehicle family. It combines the 2.1a digital flight-control and telemetry improvements with an RD-0124-powered third stage, enabling heavier payloads and larger fairings for crewless orbital missions from Baikonur, Plesetsk, and Vostochny.
- Dimensions
- Diameter
- …
- Height
- …
- First Flight Year
- 2,006
- Operator
- Parent Vehicle Family
- Propulsion Configurations
- Entries
- Count
- 4
- Placement
- booster
- Propulsion System
- Role
- booster
- Stage
- first-stage
- Variant Notes
- Four strap-on boosters, each with one RD-107A.
- Count
- 1
- Placement
- core
- Propulsion System
- Role
- main
- Stage
- second-stage
- Variant Notes
- Single RD-108A on the Block A core stage.
- Count
- 1
- Placement
- upper
- Propulsion System
- Role
- upper-stage
- Stage
- third-stage
- Variant Notes
- Single RD-0124 on the improved Block I third stage.
- Name
- Soyuz-2.1b
- Notes
- Exact Soyuz-2.1b three-stage propulsion.
- Rocket Specs
- Payload Capacity
- LEO
- …
- Reusability
- expendable
- Stages Count
- 3
- Strap On Boosters Count
- 4
Links
Assets & Meta
- Creation Time
- July 14, 2026 at 06:42:02 UTC
- Updated Time
- August 1, 2026 at 10:19:40 UTC
- Image
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