F-1 engine
E548706
The F-1 engine is a powerful liquid-fueled rocket engine developed by Rocketdyne and famously used on NASA’s Saturn V launch vehicle to provide the immense thrust needed for Apollo Moon missions.
All labels observed (1)
| Label | Occurrences |
|---|---|
| F-1 engine canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5817657 — 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: F-1 engine Context triple: [S-IC, poweredBy, F-1 engine]
-
A.
Raptor engine
The Raptor engine is SpaceX’s next-generation full-flow staged combustion methane-fueled rocket engine designed to power the Starship launch system.
-
B.
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.
-
C.
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.
-
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.
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E.
Rocketdyne H-1
The Rocketdyne H-1 was a kerosene/liquid-oxygen rocket engine developed in the United States and used on early Saturn launch vehicles during the Apollo era.
- 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: F-1 engine Target entity description: The F-1 engine is a powerful liquid-fueled rocket engine developed by Rocketdyne and famously used on NASA’s Saturn V launch vehicle to provide the immense thrust needed for Apollo Moon missions.
-
A.
Raptor engine
The Raptor engine is SpaceX’s next-generation full-flow staged combustion methane-fueled rocket engine designed to power the Starship launch system.
-
B.
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.
-
C.
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.
-
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.
Rocketdyne H-1
The Rocketdyne H-1 was a kerosene/liquid-oxygen rocket engine developed in the United States and used on early Saturn launch vehicles during the Apollo era.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | liquid-fueled rocket engine ⓘ |
| associatedUpgradeStudy | F-1A engine NERFINISHED ⓘ |
| chamberPressure | about 70 bar ⓘ |
| combustionChambers | 1 ⓘ |
| contractor | North American Aviation NERFINISHED ⓘ |
| coolingMethod | regenerative cooling ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| cycleType | gas-generator cycle ⓘ |
| developedFor | Saturn V launch vehicle NERFINISHED ⓘ |
| diameter | about 3.7 meters ⓘ |
| dryMass | about 8,400 kilograms ⓘ |
| exhaust | kerosene-oxygen combustion products ⓘ |
| firstFlight | Saturn V Apollo 4 mission NERFINISHED ⓘ |
| firstFlightDate | 1967-11-09 ⓘ |
| fuel | RP-1 kerosene ⓘ |
| gimbalCapability | engine gimbaling for thrust vector control ⓘ |
| height | about 5.8 meters ⓘ |
| heritage | influenced later large kerosene-oxygen engine designs ⓘ |
| ignitionSystem | pyrotechnic ignition ⓘ |
| laterContractor | Rockwell International NERFINISHED ⓘ |
| legacy | iconic symbol of the Apollo-era heavy-lift capability ⓘ |
| manufacturer | Rocketdyne NERFINISHED ⓘ |
| notableFeature | largest single-chamber liquid-fueled rocket engine ever flown ⓘ |
| nozzles | 1 ⓘ |
| numberPerSaturnVFirstStage | 5 ⓘ |
| operator | NASA Marshall Space Flight Center NERFINISHED ⓘ |
| oxidizer | liquid oxygen ⓘ |
| primaryRole | first-stage booster engine ⓘ |
| programStartPeriod | late 1950s ⓘ |
| propellantType | liquid fuel ⓘ |
| specificImpulseSeaLevel | about 263 seconds ⓘ |
| specificImpulseVacuum | about 304 seconds ⓘ |
| stageUsedOn | Saturn V S-IC first stage NERFINISHED ⓘ |
| status | retired ⓘ |
| testLocation |
Edwards Air Force Base
NERFINISHED
ⓘ
Marshall Space Flight Center test stands NERFINISHED ⓘ |
| thrustAtSeaLevel |
about 1.5 million pounds-force
ⓘ
about 6.77 MN ⓘ |
| thrustInVacuum | about 7.7 MN ⓘ |
| usedBy | NASA NERFINISHED ⓘ |
| usedForMissionType | Moon missions ⓘ |
| usedInLaunchVehicleFamily | Saturn family NERFINISHED ⓘ |
| usedInMission |
Apollo 11
NERFINISHED
ⓘ
Apollo 17 NERFINISHED ⓘ Apollo 8 NERFINISHED ⓘ |
| usedInProgram | Apollo program NERFINISHED ⓘ |
| usedOn | Saturn V first stage 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: F-1 engine Description of subject: The F-1 engine is a powerful liquid-fueled rocket engine developed by Rocketdyne and famously used on NASA’s Saturn V launch vehicle to provide the immense thrust needed for Apollo Moon missions.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.