F-1
E129027
The F-1 was a powerful American liquid-fueled rocket engine used on the Saturn V launch vehicle to propel Apollo missions toward the Moon.
All labels observed (1)
| Label | Occurrences |
|---|---|
| F-1 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1116662 — 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 Context triple: [Saturn V, firstStageEngineType, F-1]
-
A.
F
F is the New York Stock Exchange ticker symbol for Ford Motor Company, the American multinational automaker known for mass-producing automobiles and pioneering assembly line manufacturing.
-
B.
FSA
FSA is the abbreviation for the former U.S. Federal Security Agency, a government body that once oversaw various federal social and public health programs.
-
C.
F.D.
F.D. is the standard abbreviation of the Latin title "Fidei Defensor," historically used by English and later British monarchs to denote their role as "Defender of the Faith."
-
D.
FA
FA is a Chilean left-wing political coalition known for uniting various progressive parties and movements to challenge the country’s traditional political blocs.
-
E.
FAR
FAR is the acronym for Cuba’s national military organization, the Revolutionary Armed Forces.
- 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 Target entity description: The F-1 was a powerful American liquid-fueled rocket engine used on the Saturn V launch vehicle to propel Apollo missions toward the Moon.
-
A.
F
F is the New York Stock Exchange ticker symbol for Ford Motor Company, the American multinational automaker known for mass-producing automobiles and pioneering assembly line manufacturing.
-
B.
FSA
FSA is the abbreviation for the former U.S. Federal Security Agency, a government body that once oversaw various federal social and public health programs.
-
C.
F.D.
F.D. is the standard abbreviation of the Latin title "Fidei Defensor," historically used by English and later British monarchs to denote their role as "Defender of the Faith."
-
D.
FA
FA is a Chilean left-wing political coalition known for uniting various progressive parties and movements to challenge the country’s traditional political blocs.
-
E.
FAR
FAR is the acronym for Cuba’s national military organization, the Revolutionary Armed Forces.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
liquid-fueled rocket engine
ⓘ
rocket engine ⓘ |
| chamberPressure | about 70 bar ⓘ |
| combustionChambers | 1 ⓘ |
| coolingMethod | regenerative cooling ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| cycleType | gas-generator cycle ⓘ |
| developedBy | Rocketdyne engineers ⓘ |
| developedForAgency | NASA ⓘ |
| diameter | about 3.7 m ⓘ |
| dryMass | about 8,400 kg ⓘ |
| era |
1960s
ⓘ
1970s ⓘ |
| firstCrewedMissionUse | Apollo 8 ⓘ |
| firstFlight | 1967 ⓘ |
| fuel |
RP-1 kerosene
ⓘ
linked to:
RP-1
|
| gimbalCapability | engine gimbaling for thrust vector control ⓘ |
| height | about 5.6 m ⓘ |
| heritage | influenced later large engine designs such as F-1B concepts ⓘ |
| ignitionSystem | pyrotechnic ignition ⓘ |
| launchVehicleRole | first-stage propulsion ⓘ |
| manufacturer |
Rocketdyne
ⓘ
linked to:
Aerojet Rocketdyne
|
| notableFeature | most powerful single-chamber liquid-fueled rocket engine ever flown ⓘ |
| numberPerSaturnVFirstStage | 5 ⓘ |
| oxidizer | liquid oxygen ⓘ |
| program |
Saturn rocket program
ⓘ
linked to:
Saturn rocket family
|
| propellantFeed | turbopump-fed ⓘ |
| propellantType | liquid oxygen / RP-1 ⓘ |
| status | retired ⓘ |
| thrustAtSeaLevel |
about 1.5 million pounds-force
ⓘ
about 6.77 MN ⓘ |
| thrustInVacuum |
about 1.7 million pounds-force
ⓘ
about 7.7 MN ⓘ |
| usedFor |
Apollo lunar missions
ⓘ
linked to:
Apollo program
Apollo program ⓘ launch to Earth orbit ⓘ translunar injection support ⓘ |
| usedOn |
S-IC stage
ⓘ
linked to:
S-IC
Saturn V ⓘ Saturn V first stage ⓘ
linked to:
Saturn V
|
| usedOnMission |
Apollo 11
ⓘ
Apollo 12 ⓘ Apollo 13 ⓘ Apollo 14 ⓘ Apollo 15 ⓘ Apollo 16 ⓘ Apollo 17 ⓘ Apollo 8 ⓘ |
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 Description of subject: The F-1 was a powerful American liquid-fueled rocket engine used on the Saturn V launch vehicle to propel Apollo missions toward the Moon.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.