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Soyuz 2.1a Fregat-M
Progress Rocket Space Center
Active
The 2.1a version includes conversion from analog to digital flight control system and uprated engines on the booster and the first stage with improved injection systems. The new digital flight control and telemetry systems allow the rocket to launch from a fixed rather than angled launch platform and adjust its heading in flight. A digital control system also enables the launch of larger commercial satellites with wider and longer payload fairings such as the ST-type fairing. These fairings introduce too much aerodynamic instability for the old analog system to handle.
Height
46.3 m
Mass
312 t
Stages
3
Payload to LEO
7.0 t
Reusable
No
First flight
2010-10-19
Success rate
95%
Consecutive successes
11×
Success rate95%
Flight history (8)
UpcomingSoyuz 2.1a | Progress MS-35 (96P)6/17/2026SuccessSoyuz 2.1a | Progress MS-34 (95P)4/25/2026SuccessSoyuz 2.1a/Fregat-M | Meridian-M No.21L4/3/2026SuccessSoyuz 2.1a | Progress MS-33 (94P)3/22/2026SuccessSoyuz 2.1a | Obzor-R No.112/25/2025SuccessSoyuz 2.1a | Soyuz MS-2811/27/2025SuccessSoyuz 2.1a | Progress MS-32 (93P)9/11/2025SuccessSoyuz 2.1a | Progress MS-31 (92P)7/3/2025