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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.

Soyuz-2.1b
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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 M
2.95
Height M
46
First Flight Year
2,006
Operator
Parent Vehicle Family
Propulsion Configurations
  • Entries
    • Nested value
    • Nested value
    • Nested value
    Name
    Soyuz-2.1b
    Notes
    Exact Soyuz-2.1b three-stage propulsion.
Rocket Specs
Payload Capacity Kg
Leo
8,320
Reusability
expendable
Stages Count
3
Strap On Boosters Count
4

Links

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Creation Time
July 14, 2026 at 06:42:02 UTC
Updated Time
August 1, 2026 at 10:19:40 UTC

Other

Search Name
Soyuz-2.1b Soyuz 2.1b Soyuz 2-1b Soyuz-2 stage 1B Союз-2.1б