Polyblock UR-500-1P
Stage · Russia
Original archive entry. The text, images and links below are kept as they were written.

Credit: Khrunichev
N2O4/UDMH propellant rocket stage. Original 'Polyblock' design for Proton first stage. This was selected configuration; although somewhat greater in dry mass, it had the advantages of shorter length.
No Engines: 4.
Subtopics
- Monoblock UR-500-1M N2O4/UDMH propellant rocket stage. Original conventional 'Monoblock' design for Proton first stage.
- Proton K-1 Proton K stage 1.
- UR-500MK-1 LOx/Kerosene propellant rocket stage. Empty mass estimated based on overall vehicle mass fraction. Length estimated based on total mass.
- Proton M-1 Proton M Stage 1.
Related
- Country
- Russia
- Engines
- 8D43 + 11D43, 11D43
- Launch Vehicles
- Polyblock UR-500
- Propellants
- N2O4/UDMH