RD-191
Initial Operational Capability (IOC) : September 2008
Total Production : ?
The RD-191 is a liquid fuel rocket engine developed by Energomash between 1999 and 2008 for the Angara family of space launch vehicles and Baikal reusable booster. Its design is based on the RD-170/171 engines developed to power Energia and Zenit rockets. The new engine burns a mixture of liquid oxygen (LOx) and kerosene with a limited amount of hydrogen in a single combustion chamber. The RD-191 design has been arranged to achieve simultaneous and stable combustion of all the three components. The first test burn of RD-191 engine was held in July 2001. Through August 2006, the RD-191 had logged more than 35 engine tests with more than 4,500 seconds of burning time. The engine development was completed in early September 2008. The next phase of the RD-191 program will see the engine tested with the Angara rocket.
| Model | Status | Year | Produced |
|---|---|---|---|
| RD-191 | Active | 2008 | ? |
| RD-191M | Under Development | 2027 | ? |
RD-191
Group : Rocket Engines
Status : Active
Origin : 
Russia
Contractor : NPO Energomash
Initial Operational Capability (IOC) : September 2008
Total Production : ?
The RD-191 rocket engine is a highly versatile design to power the first and second stages of Angara space launch vehicle family. It will develop between 196 and 213 tons of thrust for 310.7 to 337 seconds. Besides, the engine will be powering the Baikal reusable booster which is slated for use with heavyweight versions of the Angara complex. The new engine has been developed as a reuseable one. When existing liquid-fueled rocket engines are used, the burnt-out stages fall down to Earth, posing a serious threat both to the ecology of the impact areas and people's lives. The environmentally friendly reusable engine avoids this scenario. Besides, the RD-191's recoverability and repeated use is aimed at cutting payload deployment costs several times over.
Operators
| Country | Status | State | Notes |
|---|---|---|---|
| Russia | Active | ? |
Specifications
| Notes | ||
|---|---|---|
| Combustion Chambers | 1 | |
| Dimensions | ||
| Diameter | 1,450 millimeter | |
| Length | 4,000 millimeter | |
| Mass | ||
| Dry Weight | 2,200 kilogram | |
| Thrust | 213 ton | |
| Pressure | ||
| Combustion Chamber Pressure | 263 kg/cm2 | |
| Time | ||
| Burn Time | 337 second | |
RD-191M
Group : Rocket Engines
Status : Under Development
Origin : Russia
Contractor : NPO Energomash
Initial Operational Capability (IOC) : 2027
First Flight : 2027
Total Production : ?
The RD-191M engine variant with a 10 percent increase in thrust is intended for the Angara A5M rocket that will carry Russian Orbital Station (ROS) modules. The new engine was first tested at the beginning of 2024 and will power the first Angara A5M flight in 2027. The Angara A5M rocket will be responsible for carrying the Future Russian Manned Spacecraft into space beginning in 2027-2028.
Operators
| Country | Status | State | Notes |
|---|---|---|---|
| Russia | Planned | ? |
Specifications
| Notes | ||
|---|---|---|
| Combustion Chambers | 1 | |
| Dimensions | ||
| Diameter | 1,450 millimeter | |
| Length | 4,000 millimeter | |
| Mass | ||
| Dry Weight | 2,200 kilogram | |
| Thrust | 234 ton | |
| Time | ||
| Burn Time | 337 second | |
News
Tests of the RD-191M engine, which will help increase the payload capacity of the Angara rocket, have been completed, Roscosmos State Corporation reports.
The engine has a ten percent bigger thrust that will make Angara-A5M orbit heavier payloads, including the Russian Orbital Station modules MOSCOW, April 17.
The first launch of the updated Angra-A5M heavy launch vehicle is scheduled for 2027. It should launch a new manned spacecraft into orbit, said the head of the Roscosmos
The RD-191 is an engine for the URM-1 standardized rocket module that constitutes the core of the first and second stages of the Angara launch vehicle MOSCOW, July 13.
Photo Gallery
September 2008
RD-191 rocket engine
Notes
State Latest Known holdings/Original Procurement
Com - Date of Commissioning
Decom - Date of Decommissioning
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