Proton-M
Roscosmos/ILS
Soviet workhorse for heavy GEO missions. Over 400 flights since 1965. Being phased out in favour of Angara.
Specifications
Frequently asked about Proton-M
- When did Proton-M first fly?
- Proton-M had its first flight in 1965, operated by Roscosmos/ILS. Current status: retiring.
- What's the payload capacity of Proton-M?
- Proton-M can lift up to 22.8 tonnes to Low Earth Orbit (LEO) and 6.3 tonnes to Geostationary Transfer Orbit (GTO).
- How tall is Proton-M?
- Proton-M stands 58.2 metres tall with a diameter of 7.4 metres. Total thrust at liftoff: 10,000 kN across 3 stages.
- Is Proton-M reusable?
- No, Proton-M is expendable — boosters and upper stages are not recovered for reflight.
