Proton / UR-500 K/D
Proton / UR-500 familyRussian Federal Space Agency (ROSCOSMOS)Retired
This four stage version of the Proton was originally designed to send manned circumlunar spacecraft into translunar trajectory.
Specifications
- Thrust
- 8,847 kN
- Height
- 57 m
- Diameter
- 4 m
- Launch mass
- 696 t
- Stages
- 4
Specifications from Launch Library. Figures the operator has not published are omitted.
Flight record
39flightswith a definitive outcome
61.5%success rate24 of 39
15failuresincluding partial failures
14success streakcurrent
First flight March 10, 1967 · latest June 14, 1975
Counted from padside's own launch record, the same basis as the stats page.
Flights per year
- Successful
- Failed
Show the numbers for Proton flights per year
| Year | Successful | Failed | Total |
|---|---|---|---|
| 1967 | 1 | 3 | 4 |
| 1968 | 3 | 2 | 5 |
| 1969 | 2 | 8 | 10 |
| 1970 | 4 | 1 | 5 |
| 1971 | 4 | 1 | 5 |
| 1972 | 1 | 0 | 1 |
| 1973 | 5 | 0 | 5 |
| 1974 | 2 | 0 | 2 |
| 1975 | 2 | 0 | 2 |