Russia's heavy-lift workhorse for GEO and lunar missions. Hypergolic fuel (UDMH/N2O4) makes it operationally flexible but environmentally controversial. Phased out in favor of Angara A5.
| Operator | Roscosmos |
|---|---|
| Country | RU |
| First flight | 1965 |
| Status | Retiring |
| Class | Heavy-lift expendable |
| Primary pads | Baikonur |