Liberty L-12
E111134
The Liberty L-12 is a World War I–era American 12-cylinder liquid-cooled aircraft engine widely used to power Allied military aircraft.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Liberty L-12 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T945665 — 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: Liberty L-12 Context triple: [Airco DH.4, typicalEngine, Liberty L-12]
-
A.
Stinson SM-1 Detroiter
The Stinson SM-1 Detroiter was a late-1920s American high-wing monoplane airliner and utility aircraft known for its enclosed cabin, reliability, and use in early commercial aviation.
-
B.
Lockheed Vega
The Lockheed Vega is a high-wing monoplane airliner and utility aircraft of the late 1920s and early 1930s, famed for its use by pioneering aviators such as Amelia Earhart and Wiley Post on record-setting flights.
-
C.
Sully Wing
Sully Wing is one of the main historic wings of the Louvre Museum in Paris, housing collections such as ancient Near Eastern antiquities and French paintings.
-
D.
Beechcraft C-45 Expeditor
The Beechcraft C-45 Expeditor is a twin-engine military transport and trainer aircraft, derived from the Beechcraft Model 18, that was widely used by the United States and allied air forces from World War II through the postwar era.
-
E.
Fairchild Eight
Fairchild Eight refers to the group of eight engineers who left Shockley Semiconductor Laboratory in 1957 to found Fairchild Semiconductor, a pivotal company in the early semiconductor and Silicon Valley industry.
- 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: Liberty L-12 Target entity description: The Liberty L-12 is a World War I–era American 12-cylinder liquid-cooled aircraft engine widely used to power Allied military aircraft.
-
A.
Stinson SM-1 Detroiter
The Stinson SM-1 Detroiter was a late-1920s American high-wing monoplane airliner and utility aircraft known for its enclosed cabin, reliability, and use in early commercial aviation.
-
B.
Lockheed Vega
The Lockheed Vega is a high-wing monoplane airliner and utility aircraft of the late 1920s and early 1930s, famed for its use by pioneering aviators such as Amelia Earhart and Wiley Post on record-setting flights.
-
C.
Sully Wing
Sully Wing is one of the main historic wings of the Louvre Museum in Paris, housing collections such as ancient Near Eastern antiquities and French paintings.
-
D.
Beechcraft C-45 Expeditor
The Beechcraft C-45 Expeditor is a twin-engine military transport and trainer aircraft, derived from the Beechcraft Model 18, that was widely used by the United States and allied air forces from World War II through the postwar era.
-
E.
Fairchild Eight
Fairchild Eight refers to the group of eight engineers who left Shockley Semiconductor Laboratory in 1957 to found Fairchild Semiconductor, a pivotal company in the early semiconductor and Silicon Valley industry.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
V-12 engine
ⓘ
aircraft engine ⓘ liquid-cooled engine ⓘ |
| bore | 5 inches ⓘ |
| compressionRatio | about 5.4:1 ⓘ |
| configuration | 60-degree V-12 ⓘ |
| coolingSystem | liquid-cooled ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| cylinders | 12 ⓘ |
| developer |
Elbert J. Hall
NERFINISHED
ⓘ
Jesse G. Vincent ⓘ |
| displacement |
1649 cubic inches
ⓘ
27.0 liters ⓘ |
| era | World War I era ⓘ |
| firstRun | 1917 ⓘ |
| fuelType | gasoline ⓘ |
| legacy | influential in later American aircraft engine design ⓘ |
| manufacturer |
Buick
ⓘ
Cadillac ⓘ Ford Motor Company ⓘ General Motors ⓘ Ford Motor Company ⓘ
surface form:
Lincoln Motor Company
Mack Trucks ⓘ Marmon Group ⓘ
surface form:
Nordyke and Marmon Company
Packard Motor Car Company ⓘ |
| notableApplication |
Airco DH-9A (U.S.-supplied)
ⓘ
Caproni bombers (U.S.-supplied) ⓘ Curtiss H-16 flying boat ⓘ DH-4 ⓘ Handley Page O/400 ⓘ
surface form:
Handley Page O/400 (U.S.-built variants)
Martin MB-1 ⓘ |
| notableFeature |
interchangeable parts
ⓘ
standardized design for mass production ⓘ |
| postwarUse |
airship powerplants
ⓘ
civil aircraft ⓘ high-speed boats ⓘ racing boats ⓘ |
| powerOutput |
about 400 horsepower
ⓘ
approximately 298 kilowatts ⓘ |
| productionPeriod | 1917–1920s ⓘ |
| productionQuantity | over 20,000 units ⓘ |
| stroke | 7 inches ⓘ |
| usedBy |
Allies of World War II
ⓘ
surface form:
Allied powers
Royal Air Force ⓘ United States Army Air Service ⓘ |
| usedFor |
bombers
ⓘ
fighters (limited) ⓘ flying boats ⓘ reconnaissance aircraft ⓘ |
| usedInConflict | World War I ⓘ |
| valvetrain | single overhead camshaft ⓘ |
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: Liberty L-12 Description of subject: The Liberty L-12 is a World War I–era American 12-cylinder liquid-cooled aircraft engine widely used to power Allied military aircraft.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.