The RD801 engine generates thrust and controls flight of the Mayak launch vehicle first stage. The engine is based on technologies tested on the Zenit launch vehicle.
The RD801 is a single-chamber, dual-mode, single-burn engine with a turbo-pump-feed system. The engine uses oxygen-rich staged combustion.
The engine gimbaling in two mutually perpendicular planes provides thrust vector control.
A starting fuel is used to ignite propellants in the chamber and the gas generator.
The turbopump assembly turbine uses producer gas as a working fluid.
A 492-ton-thrust engine cluster, comprised of four RD801 engines can be developed based on the RD801.
The engine is currently in development.
Basic Specifications
|
Engine mass, kg |
1630 |
|
Propellants: Oxidizer Fuel |
Liquid oxygen Kerosene |
|
Thrust, kgf: Sea-level Vacuum |
122224 136566 |
|
Vacuum specific impulse, kgf·s/kg: Sea-level Vacuum |
300,7 336 |
|
Propellant mixture ratio |
2,65 |
|
Engine gimbal angle, ang.deg |
±6 |
|
Running time in flight, s |
Up to 200 |
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