Proton-K
RetiredKhrunichev · 3-stage orbital rocket · Part of the Proton family
Total Launches
50
Success Rate
92%
Payload to LEO
21 t
First Flight
1968
Reusable
No
Interactive Model
Specifications
Height50 m
Diameter7.4 m
Wet Mass694,000 kg
Payload to GTON/A
Payload to SSON/A
ManufacturerKhrunichev
CountryRussia
Engines Used
- RD-2756x, Stage 1
Engine usage data lives in the Engine Dashboard.
Launch History
Reliability by Year
Related Entities
Data Sources for This Record
Specifications
GCAT / Wikipedia · verified quarterly
Launch History
LL2 API · updated every 6h
Engine Data
Manufacturer + Wikidata