Soyuz U
Soyuz familyRussian Federal Space Agency (ROSCOSMOS)Retired

Specifications
- Thrust
- 4,146 kN
- Height
- 51.1 m
- Diameter
- 2.95 m
- Launch mass
- 313 t
- Stages
- 3
- LEO capacity
- 6,900 kg
Specifications from Launch Library. Figures the operator has not published are omitted.
Flight record
714flightswith a definitive outcome
97.2%success rate694 of 714
20failuresincluding partial failures
1success streakcurrent
First flight May 18, 1973 · latest February 22, 2017
Counted from padside's own launch record, the same basis as the stats page.
Flights per year
- Successful
- Failed
Show the numbers for Soyuz U flights per year
| Year | Successful | Failed | Total |
|---|---|---|---|
| 1973 | 3 | 0 | 3 |
| 1974 | 9 | 1 | 10 |
| 1975 | 10 | 0 | 10 |
| 1976 | 23 | 1 | 24 |
| 1977 | 37 | 2 | 39 |
| 1978 | 45 | 0 | 45 |
| 1979 | 45 | 2 | 47 |
| 1980 | 45 | 0 | 45 |
| 1981 | 41 | 1 | 42 |
| 1982 | 42 | 2 | 44 |
| 1983 | 41 | 1 | 42 |
| 1984 | 38 | 0 | 38 |
| 1985 | 37 | 0 | 37 |
| 1986 | 32 | 1 | 33 |
| 1987 | 33 | 1 | 34 |
| 1988 | 31 | 3 | 34 |
| 1989 | 27 | 0 | 27 |
| 1990 | 16 | 2 | 18 |
| 1991 | 9 | 0 | 9 |
| 1992 | 12 | 0 | 12 |
| 1993 | 7 | 0 | 7 |
| 1994 | 8 | 0 | 8 |
| 1995 | 8 | 0 | 8 |
| 1996 | 6 | 1 | 7 |
| 1997 | 9 | 0 | 9 |
| 1998 | 5 | 0 | 5 |
| 1999 | 3 | 0 | 3 |
| 2000 | 7 | 0 | 7 |
| 2001 | 6 | 0 | 6 |
| 2002 | 3 | 0 | 3 |
| 2003 | 3 | 0 | 3 |
| 2004 | 4 | 0 | 4 |
| 2005 | 4 | 0 | 4 |
| 2006 | 3 | 0 | 3 |
| 2007 | 4 | 0 | 4 |
| 2008 | 4 | 0 | 4 |
| 2009 | 5 | 0 | 5 |
| 2010 | 6 | 0 | 6 |
| 2011 | 5 | 1 | 6 |
| 2012 | 5 | 0 | 5 |
| 2013 | 4 | 0 | 4 |
| 2014 | 4 | 0 | 4 |
| 2015 | 3 | 0 | 3 |
| 2016 | 1 | 1 | 2 |
| 2017 | 1 | 0 | 1 |