BE-4 engine
E643473
The BE-4 engine is Blue Origin’s next-generation, liquefied natural gas–fueled rocket engine designed to power heavy-lift launch vehicles such as New Glenn and United Launch Alliance’s Vulcan.
All labels observed (1)
| Label | Occurrences |
|---|---|
| BE-4 engine canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7113582 — 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: BE-4 engine Context triple: [Blue Origin, develops, BE-4 engine]
-
A.
BE-3 engine
The BE-3 engine is a liquid hydrogen–liquid oxygen rocket engine developed by Blue Origin, best known for powering the company’s New Shepard suborbital launch vehicle.
-
B.
NK-33 engine
The NK-33 engine is a Soviet-era high-performance liquid-fuel rocket engine originally developed for the N1 lunar rocket program, known for its efficiency and thrust-to-weight ratio.
-
C.
RS-68 engine
The RS-68 engine is a powerful liquid-fueled rocket engine used primarily on the Delta IV launch vehicle, known for its high thrust and simplified design for cost-effective heavy-lift missions.
-
D.
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.
-
E.
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.
- 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: BE-4 engine Target entity description: The BE-4 engine is Blue Origin’s next-generation, liquefied natural gas–fueled rocket engine designed to power heavy-lift launch vehicles such as New Glenn and United Launch Alliance’s Vulcan.
-
A.
BE-3 engine
The BE-3 engine is a liquid hydrogen–liquid oxygen rocket engine developed by Blue Origin, best known for powering the company’s New Shepard suborbital launch vehicle.
-
B.
NK-33 engine
The NK-33 engine is a Soviet-era high-performance liquid-fuel rocket engine originally developed for the N1 lunar rocket program, known for its efficiency and thrust-to-weight ratio.
-
C.
RS-68 engine
The RS-68 engine is a powerful liquid-fueled rocket engine used primarily on the Delta IV launch vehicle, known for its high thrust and simplified design for cost-effective heavy-lift missions.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
liquid-propellant rocket engine
ⓘ
rocket engine ⓘ |
| application | heavy-lift launch vehicles ⓘ |
| belongsToProgram |
New Glenn program
NERFINISHED
ⓘ
Vulcan launch system program NERFINISHED ⓘ |
| combustionType | oxygen-rich staged combustion ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| customer | United Launch Alliance NERFINISHED ⓘ |
| designedFor | orbital launch vehicles ⓘ |
| designedForReusabilityCycles | multiple flights per engine ⓘ |
| designedToReplace | RD-180 (on ULA vehicles) ⓘ |
| developer | Blue Origin NERFINISHED ⓘ |
| developerRole | in-house development by Blue Origin ⓘ |
| engineConfigurationOnNewGlenn | cluster of seven BE-4 engines ⓘ |
| engineConfigurationOnVulcan | pair of BE-4 engines ⓘ |
| engineCycle | oxygen-rich staged combustion ⓘ |
| firstFlightVehicle | Vulcan Centaur NERFINISHED ⓘ |
| firstFlightYear | 2024 ⓘ |
| fuel |
liquefied natural gas
ⓘ
methane ⓘ |
| generation | next-generation rocket engine ⓘ |
| intendedLaunchVehicle |
New Glenn
NERFINISHED
ⓘ
Vulcan Centaur NERFINISHED ⓘ |
| intendedUse | first-stage engine ⓘ |
| majorCustomer | United Launch Alliance NERFINISHED ⓘ |
| manufacturer | Blue Origin NERFINISHED ⓘ |
| marketSegment |
commercial launch
ⓘ
national security launch ⓘ |
| numberOfEnginesOnNewGlennFirstStage | 7 ⓘ |
| numberOfEnginesOnVulcanFirstStage | 2 ⓘ |
| oxidizer | liquid oxygen ⓘ |
| primaryContractor | Blue Origin NERFINISHED ⓘ |
| primaryMaterialUse | high-performance alloys ⓘ |
| propellantState | cryogenic ⓘ |
| propellantType | liquefied natural gas ⓘ |
| propulsionCategory | LOX–methane engine ⓘ |
| reusability | designed for reuse ⓘ |
| stage | booster stage ⓘ |
| status | in development and early operational use ⓘ |
| technologyDemonstrationPhaseCompleted | full-scale engine testing ⓘ |
| testLocation |
Huntsville, Alabama
NERFINISHED
ⓘ
West Texas NERFINISHED ⓘ |
| throttleCapability | throttleable ⓘ |
| thrustSeaLevel | approximately 2,400 kN ⓘ |
| thrustVacuum | approximately 2,400 kN ⓘ |
| usedOn |
New Glenn
NERFINISHED
ⓘ
Vulcan Centaur NERFINISHED ⓘ |
| usesLOX | true ⓘ |
| usesMethane | true ⓘ |
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: BE-4 engine Description of subject: The BE-4 engine is Blue Origin’s next-generation, liquefied natural gas–fueled rocket engine designed to power heavy-lift launch vehicles such as New Glenn and United Launch Alliance’s Vulcan.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.