📊 Analysis
Statistics & insights on rockets and organizations — technology, history, numbers.
Soyuz-U-PVB
RetiredProgress Rocket Space Center
A Russian orbital launch vehicle. A version of the Soyuz-U with safety modifications to prevent and resist fires in all stages and the upper stage avionics compartment.
Key figures
Total launches
74
Successes
72
Failures
2
Success rate
97.3 %
Success streak
12
Maiden flight
Mar 21, 1984
Reusable
No
Shortest launch interval ⓘ
19h 30min
Planned launches
0
Soyuz family total
833 launches · 809 successes · 24 failures (6 variants)
🧐 Data check
Automatic plausibility checks — anomalies are surfaced transparently here:
- ℹ️The figures above apply only to the “Soyuz-U-PVB” variant. The Launch Library counts each variant separately — the Soyuz family totals 833 launches across 6 variants.
Technology
Length
51 m
Diameter
3 m
Launch mass
313 t
Stages
2
LEO (low Earth orbit)
6,900 kg
Engines & propellant
| Boosters | 4× RD-107A | Kerosin / Flüssigsauerstoff |
| 1st stage | 1× RD-108A (Zentralblock) | Kerosin / Flüssigsauerstoff |
| 2nd stage | RD-0110 / RD-0124 | Kerosin / Flüssigsauerstoff |
| Kick stage | Fregat (optional) | UDMH / Stickstofftetroxid |
Engine and propellant data from curated sources: Wikipedia — Sojus (Rakete)
Launches per year
of which in our database: 74
Successes Failures Other/planned
History & events
Sources
- Launch Library 2 (The Space Devs)
- Wikipedia