RD805
Yuzhnoye Design Bureau
The RD805 is a single-chamber staged combustion cryogenic rocket engine developed by Yuzhnoye SDO, utilizing an oxidizer-rich preburner cycle and incorporating tried-and-tested components from the highly reliable, serially produced steering engine RD-8 used on the Zenit launch vehicle. It burns liquid oxygen and kerosene propellants, producing 2.15 tf of vacuum thrust with a high specific […]
Typed specifications6 values
Discloses 5 of 10 fields engineers filter by in this category (category median 3).
- Mass
- 80 kg product page
- Thrust
- 21 084 297.5 mN product page
- Specific impulse
- 345 s product page
- Propellant
- oxygen product page kerosene (RP-1)
- TRL
- 4 product page
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier8 lines, in the manufacturer's own wording
- Propellants
- O2 + kerosene
- Vacuum thrust
- 2.15 tf
- Specific impulse (vacuum)
- 345 s
- Propellant mixture ratio
- 2.5
- Number of starts
- 1
- Engine weight (excl. gimbal drives)
- 80 kg
- Cycle
- Staged combustion (oxidizer-rich preburner)
- TRL
- 4
About
The RD805 is a single-chamber staged combustion cryogenic rocket engine developed by Yuzhnoye SDO, utilizing an oxidizer-rich preburner cycle and incorporating tried-and-tested components from the highly reliable, serially produced steering engine RD-8 used on the Zenit launch vehicle. It burns liquid oxygen and kerosene propellants, producing 2.15 tf of vacuum thrust with a high specific impulse of 345 seconds. The staged combustion cycle offers higher efficiency compared to gas generator cycles used in older engine designs. The engine supports a single start, weighs 80 kg excluding gimbal drives, and is in development for advanced upper stage applications. Technology Readiness Level of 4 indicates validation in laboratory and subscale environments.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.