RD-191 rocket engine
E941344
The RD-191 rocket engine is a modern Russian liquid-fueled, single-chamber engine used on launch vehicles such as Angara, known for its high efficiency and advanced throttle capability.
All labels observed (1)
| Label | Occurrences |
|---|---|
| RD-191 rocket engine canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11539858 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: RD-191 rocket engine Context triple: [NPO Energomash, products, RD-191 rocket engine]
-
A.
RS-27 rocket engine
The RS-27 rocket engine is an American liquid-fueled booster engine used on Delta launch vehicles, derived from earlier Saturn I technology and known for its reliability in orbital launches.
-
B.
RD-181
RD-181 is a Russian-built liquid-fueled rocket engine used to power the first stage of certain orbital launch vehicles, notably Northrop Grumman’s Antares.
-
C.
RD-171
The RD-171 is a powerful Russian liquid-fueled rocket engine, notable for being one of the most thrust-capable multi-chamber engines ever used in orbital launch vehicles.
-
D.
RD-107
RD-107 is a Soviet-designed liquid-fueled rocket engine, best known for powering the first stages of early R-7 family launch vehicles used in historic missions like Sputnik and Vostok.
-
E.
RD-120
The RD-120 is a Soviet-designed liquid-fueled rocket engine used on medium-lift launch vehicles, notable for its high performance and role in powering upper stages of space launch systems.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: RD-191 rocket engine Target entity description: The RD-191 rocket engine is a modern Russian liquid-fueled, single-chamber engine used on launch vehicles such as Angara, known for its high efficiency and advanced throttle capability.
-
A.
RS-27 rocket engine
The RS-27 rocket engine is an American liquid-fueled booster engine used on Delta launch vehicles, derived from earlier Saturn I technology and known for its reliability in orbital launches.
-
B.
RD-181
RD-181 is a Russian-built liquid-fueled rocket engine used to power the first stage of certain orbital launch vehicles, notably Northrop Grumman’s Antares.
-
C.
RD-171
The RD-171 is a powerful Russian liquid-fueled rocket engine, notable for being one of the most thrust-capable multi-chamber engines ever used in orbital launch vehicles.
-
D.
RD-107
RD-107 is a Soviet-designed liquid-fueled rocket engine, best known for powering the first stages of early R-7 family launch vehicles used in historic missions like Sputnik and Vostok.
-
E.
RD-120
The RD-120 is a Soviet-designed liquid-fueled rocket engine used on medium-lift launch vehicles, notable for its high performance and role in powering upper stages of space launch systems.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
liquid-fueled rocket engine
ⓘ
rocket engine ⓘ |
| application | launch vehicle booster engine ⓘ |
| combustionChamberArrangement | single-chamber ⓘ |
| combustionType | high-pressure staged combustion ⓘ |
| controlSystem | digital engine control unit ⓘ |
| coolingMethod | regenerative cooling ⓘ |
| countryOfOrigin | Russia ⓘ |
| countryUser | Russian Federation NERFINISHED ⓘ |
| designLineage |
RD-170 family
NERFINISHED
ⓘ
RD-180 NERFINISHED ⓘ |
| developer | NPO Energomash NERFINISHED ⓘ |
| engineCycle | oxidizer-rich staged combustion ⓘ |
| era | 21st century ⓘ |
| familyVariant |
RD-151
NERFINISHED
ⓘ
RD-181 ⓘ |
| fuel | RP-1 kerosene ⓘ |
| fuelMixture | LOX/RP-1 ⓘ |
| fuelState | room-temperature liquid ⓘ |
| gimbalAxes | two-axis ⓘ |
| gimbalCapability | yes ⓘ |
| intendedUse | modular Angara launch system ⓘ |
| launchVehicleFamily | Angara family NERFINISHED ⓘ |
| manufacturer | NPO Energomash NERFINISHED ⓘ |
| marketSegment | medium to heavy-lift launch vehicles ⓘ |
| notableFeature |
deep throttling capability
ⓘ
derived from multi-chamber RD-170 design ⓘ high efficiency ⓘ |
| numberOfCombustionChambers | 1 ⓘ |
| originProgram | Russian space program NERFINISHED ⓘ |
| oxidizer | liquid oxygen ⓘ |
| oxidizerState | cryogenic liquid ⓘ |
| propellantCombination | cryogenic oxidizer and kerosene fuel ⓘ |
| propellantFeedSystem | turbopump ⓘ |
| propellantState | liquid ⓘ |
| propellantType | liquid ⓘ |
| reusability | designed for multiple starts on test stands ⓘ |
| safetyFeature | wide throttling range for flight control ⓘ |
| stageApplication | first stage ⓘ |
| status | operational ⓘ |
| throttleCapability | advanced ⓘ |
| throttleRange | 27–105 percent of nominal thrust ⓘ |
| thrustVectorControl | gimbaled nozzle ⓘ |
| usedFor |
orbital launch
ⓘ
suborbital launch tests ⓘ |
| usedOnLaunchVehicle |
Angara-1.2
NERFINISHED
ⓘ
Angara-A3 NERFINISHED ⓘ Angara-A5 NERFINISHED ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: RD-191 rocket engine Description of subject: The RD-191 rocket engine is a modern Russian liquid-fueled, single-chamber engine used on launch vehicles such as Angara, known for its high efficiency and advanced throttle capability.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.