RD-120
E766013
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.
All labels observed (3)
How this entity was disambiguated
This entity first appeared as the object of triple T8848205 — 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-120 Context triple: [Zenit rocket, secondStageEngine, RD-120]
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
RD-180
The RD-180 is a Russian-built, two-chamber liquid-fueled rocket engine that has powered several American launch vehicles, notably variants of the Atlas V.
-
E.
RD-93
RD-93 is a Russian turbofan jet engine derived from the Klimov RD-33, optimized to power lightweight fighter aircraft such as the Pakistani-Chinese JF-17 Thunder.
- 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-120 Target entity description: 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.
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
RD-180
The RD-180 is a Russian-built, two-chamber liquid-fueled rocket engine that has powered several American launch vehicles, notably variants of the Atlas V.
-
E.
RD-93
RD-93 is a Russian turbofan jet engine derived from the Klimov RD-33, optimized to power lightweight fighter aircraft such as the Pakistani-Chinese JF-17 Thunder.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | liquid-fueled rocket engine ⓘ |
| applicationDomain | space launch ⓘ |
| chamberPressure_bar | ~147 ⓘ |
| combustionMode | single-shaft turbopump ⓘ |
| coolingMethod | regenerative cooling ⓘ |
| countryOfOrigin | Soviet Union ⓘ |
| designedFor |
Zenit family of launch vehicles
ⓘ
linked to:
Zenit rocket
|
| designer | NPO Energomash ⓘ |
| developedIn | 1980s ⓘ |
| engineCycle | staged combustion cycle ⓘ |
| engineType | liquid rocket engine ⓘ |
| firstFlightVehicle |
Zenit-2
ⓘ
linked to:
Zenit rocket
|
| fuel | kerosene ⓘ |
| gimbalCapability | yes ⓘ |
| guidanceRole | provides thrust vector control via gimbaling ⓘ |
| launchVehicleFamily | Zenit ⓘ |
| manufacturer | NPO Energomash ⓘ |
| nozzleExpansionRatio | optimized for upper-stage operation ⓘ |
| numberOfCombustionChambers | 1 ⓘ |
| originLanguageName |
РД-120
ⓘ
linked to:
RD-120
|
| oxidizer | liquid oxygen ⓘ |
| oxidizerRich | true ⓘ |
| performanceCharacteristic | high specific impulse for kerosene/LOX class ⓘ |
| propellantCombination | LOX/RP-1 ⓘ |
| propellantType |
kerosene (RP-1)
ⓘ
liquid oxygen (LOX) ⓘ |
| relatedEngine |
RD-170
ⓘ
linked to:
RD-171
RD-171 ⓘ |
| reusability | expendable ⓘ |
| specificImpulseSeaLevel_s | ~309 ⓘ |
| specificImpulseVacuum_s | ~350 ⓘ |
| stageApplication | second stage ⓘ |
| status | operational ⓘ |
| successor |
RD-120K
ⓘ
linked to:
RD-120
|
| throttleCapability | limited ⓘ |
| thrustSeaLevel_kN | ~740 ⓘ |
| thrustVacuum_kN | ~833 ⓘ |
| usedBy |
Russian space program
ⓘ
Soviet space program ⓘ Ukrainian launch vehicles ⓘ |
| usedFor |
medium-lift launch vehicles
ⓘ
orbital launch ⓘ upper stages of space launch systems ⓘ |
| usedIn |
Zenit-2 launch vehicle
ⓘ
linked to:
Zenit rocket
Zenit-3SL launch vehicle ⓘ Zenit-3SLB launch vehicle ⓘ
linked to:
Zenit rocket
|
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-120 Description of subject: 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.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: RD-120