Rocket family
Delta
United States1972 to 2024Delta grows out of the Thor Delta into America's most dependable medium launcher. Its four-digit names spell out each configuration: first stage, number of boosters, second stage and third stage. Delta launches communications and weather satellites through the 1970s and 1980s, then, as Delta II, the GPS constellation and a long run of NASA missions. The hydrogen-fueled Delta IV ends the line in 2024.
- Launches
- 301
- Success rate
- 96%
- 6 failures · 6 partial
- First flight
- 1972
- Delta 0900
- Last flight
- 2024
- Delta IV Heavy
- Rocket types
- 53
Launches per year
Show as table
| Year | Launches |
|---|---|
| 1972 | 5 |
| 1973 | 6 |
| 1974 | 7 |
| 1975 | 12 |
| 1976 | 9 |
| 1977 | 10 |
| 1978 | 10 |
| 1979 | 3 |
| 1980 | 3 |
| 1981 | 5 |
| 1982 | 7 |
| 1983 | 8 |
| 1984 | 4 |
| 1986 | 2 |
| 1987 | 2 |
| 1988 | 1 |
| 1989 | 8 |
| 1990 | 11 |
| 1991 | 5 |
| 1992 | 11 |
| 1993 | 7 |
| 1994 | 3 |
| 1995 | 3 |
| 1996 | 10 |
| 1997 | 11 |
| 1998 | 13 |
| 1999 | 11 |
| 2000 | 7 |
| 2001 | 7 |
| 2002 | 4 |
| 2003 | 9 |
| 2004 | 8 |
| 2005 | 3 |
| 2006 | 9 |
| 2007 | 9 |
| 2008 | 5 |
| 2009 | 11 |
| 2010 | 4 |
| 2011 | 6 |
| 2012 | 4 |
| 2013 | 3 |
| 2014 | 5 |
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
Delta rockets
| Rocket | Flown | Launches | Success rate | Height | Payload to LEO |
|---|---|---|---|---|---|
| Delta 0900 | 1972 | 2 | 100% | 34 m | 1,300 kg |
| Delta 1604 | 1972 to 1973 | 2 | 100% | 35 m | 600 kg |
| Delta 0300 | 1972 to 1973 | 3 | 67% | 34 m | 820 kg |
| Delta 1914 | 1972 to 1973 | 2 | 100% | 35 m | 1,835 kg |
| Delta 1913 | 1973 | 1 | 100% | 35 m | 1,835 kg |
| Delta 1900 | 1973 | 1 | 100% | 35 m | 1,800 kg |
| Delta 2313 | 1974 to 1977 | 3 | 67% | 35 m | 500 kg |
| Delta 2914 | 1974 to 1979 | 30 | 93% | 35 m | 724 kg |
| Delta 2310 | 1974 to 1981 | 3 | 100% | 35 m | 1,882 kg |
| Delta 2910 | 1975 to 1978 | 6 | 100% | 35 m | 1,882 kg |
| Delta 1410 | 1975 | 1 | 100% | 35 m | 350 kg |
| Delta 1910 | 1975 | 1 | 100% | 35 m | 1,835 kg |
| Delta 2913 | 1975 to 1976 | 2 | 100% | 35 m | 2,000 kg |
| Delta 3914 | 1975 to 1986 | 12 | 83% | 35 m | 951 kg |
| Delta 3910 | 1980 to 1988 | 3 | 100% | 35 m | |
| Delta 3910/PAM | 1980 to 1982 | 7 | 100% | 35 m | 1,087 kg |
| Delta 3913 | 1981 | 1 | 0% | 35 m | 2,480 kg |
| Delta 3920 | 1982 to 1986 | 3 | 100% | 36 m | |
| Delta 3920/PAM | 1982 to 1987 | 6 | 100% | 36 m | 1,280 kg |
| Delta 3924 | 1982 to 1987 | 5 | 100% | 36 m | 2,385 kg |
| Delta II 6925 | 1989 to 1992 | 13 | 100% | 38.1 m | 3,981 kg |
| Delta 3920-8 | 1989 | 1 | 100% | 36 m | 2,480 kg |
| Delta 4925-8 | 1989 to 1990 | 2 | 100% | 34 m | 3,400 kg |
| Delta 5920-8 | 1989 | 1 | 100% | 34 m | 3,848 kg |
| Delta II 6920-8 | 1990 | 1 | 100% | 39 m | 3,983 kg |
| Delta II 6925-8 | 1990 | 1 | 100% | 39 m | 1,500 kg |
| Delta II 6920-10 | 1990 to 1992 | 2 | 100% | 39 m | 3,950 kg |
| Delta II 7925 | 1990 to 2009 | 36 | 94% | 38.9 m | 4,600 kg |
| Delta II 7925-8 | 1994 to 1996 | 2 | 100% | 38.2 m | 4,550 kg |
| Delta II 7925-10 | 1994 to 1996 | 2 | 100% | 38.9 m | 4,498 kg |
| Delta II 7920-10 | 1995 to 2017 | 9 | 100% | 38.7 m | 5,959 kg |
| Delta II 7920-10C | 1997 to 2011 | 17 | 100% | 38.7 m | 5,959 kg |
| Delta II 7920-8 | 1997 | 1 | 100% | 39 m | 5,000 kg |
| Delta II 7925-9.5 | 1998 to 2009 | 26 | 100% | 38.9 m | 4,600 kg |
| Delta II 7420-10C | 1998 to 2018 | 14 | 100% | 38.7 m | 3,099 kg |
| Delta III 8930 | 1998 to 2000 | 3 | 33% | 39.1 m | 8,290 kg |
| Delta II 7326-9.5 | 1998 to 2001 | 3 | 100% | 38.4 m | 2,430 kg |
| Delta II 7425-9.5 | 1998 to 2002 | 3 | 100% | 39 m | 2,880 kg |
| Delta II 7426-9.5 | 1999 | 1 | 100% | 39 m | 2,870 kg |
| Delta II 7320 | 1999 to 2011 | 6 | 100% | 38.9 m | 2,800 kg |
| Delta II 7425-10 | 2001 | 1 | 100% | 39 m | 2,886 kg |
| Delta II 7920-10L | 2002 to 2004 | 2 | 100% | 40 m | 4,805 kg |
| Delta IV M+(4,2) | 2002 to 2019 | 15 | 100% | 66.2 m | 11,920 kg |
| Delta IV M | 2003 to 2006 | 3 | 100% | 63 m | 8,600 kg |
| Delta II 7925H-9.5 | 2003 to 2007 | 3 | 100% | 38.9 m | 5,475 kg |
| Delta II 7920H | 2003 | 1 | 100% | 38.9 m | 5,959 kg |
| Delta II 7320-10C | 2004 to 2015 | 6 | 100% | 38.9 m | 2,800 kg |
| Delta IV Heavy | 2004 to 2024 | 16 | 94% | 72 m | 28,370 kg |
| Delta II 7925-10L | 2006 to 2009 | 2 | 100% | 38.9 m | 4,600 kg |
| Delta II 7925-10C | 2007 | 1 | 100% | 38.9 m | 4,520 kg |
| Delta II 7920H-10C | 2008 to 2011 | 2 | 100% | 38.9 m | 5,959 kg |
| Delta IV M+(5,4) | 2009 to 2019 | 8 | 100% | 70.7 m | 13,730 kg |
| Delta IV M+(5,2) | 2012 to 2018 | 3 | 100% | 72 m | 11,700 kg |