The 2.1b version adds an upgraded engine (RD-0124) with improved performance to the second stage. First launch took place from Plesetsk Cosmodrome Site 43 on 26 July 2008 with a classified military payload. The 2.1b/ST version is sometimes called Soyuz ST-B.
Specifications
- Thrust
- —
- Height
- 46.3 m
- Diameter
- 2.95 m
- Launch mass
- 310 t
- Stages
- 3
- Launch cost
- $80M
- LEO capacity
- 8,200 kg
- GTO capacity
- 3,250 kg
- GEO capacity
- —
- SSO capacity
- 4,900 kg
Vehicle specifications from Launch Library; blanks are unpublished figures.
Flight record
Flights
5
Launches with a definitive outcome
Success rate
100%
5 of 5
Current success streak
5
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 STB/Fregat-MT | MetOp-C — Success
- Soyuz STB/Fregat-MT | Hispasat 36W-1 (Hispasat AG1) — Success
- Soyuz STB/Fregat-MT | Gaia — Success
- Soyuz STB/Fregat-MT | O3b FM1, FM2, FM4, FM5 — Success
- Soyuz STB/Fregat-MT | Galileo L2 (IOV FM03-FM04) — Success