The Soyuz 2.1A converted the flight control system from analog to digital, which allowed launch from fixed platforms. It also allowed big fairings and payloads. It is currently used for crewed Soyuz and Progress flights to the ISS.
Specifications
- Thrust
- 4,149 kN
- Height
- 46.3 m
- Diameter
- 2.95 m
- Launch mass
- 312 t
- Stages
- 3
- Launch cost
- $80M
- LEO capacity
- 7,020 kg
- GTO capacity
- 2,810 kg
- GEO capacity
- —
- SSO capacity
- 4,230 kg
Vehicle specifications from Launch Library; blanks are unpublished figures.
Flight record
Flights
58
Launches with a definitive outcome
Success rate
98.3%
57 of 58
Current success streak
51
Landings
0
0 attempts · 0 droneship / 0 RTLS
Fastest turnaround
—
Between consecutive booster flights
Counted from padside's own launch record — the same basis as the Stats page.
Launches
- Soyuz 2.1a | Soyuz MS-29 — Success
- Soyuz 2.1a | Progress MS-34 (95P) — Success
- Soyuz 2.1a | Progress MS-33 (94P) — Success
- Soyuz 2.1a | Obzor-R No.1 — Success
- Soyuz 2.1a | Soyuz MS-28 — Success