Pratt & Whitney JT3C
E555809
The Pratt & Whitney JT3C is an early American turbojet engine that powered first-generation jet airliners and military aircraft in the late 1950s and early 1960s.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Pratt & Whitney JT3C canonical | 4 |
| Pratt & Whitney JT3C turbojet | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5906427 — 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: Pratt & Whitney JT3C Context triple: [Boeing 720, engineType, Pratt & Whitney JT3C]
-
A.
Pratt & Whitney JT3D
The Pratt & Whitney JT3D is an early low-bypass turbofan jet engine widely used on first-generation jet airliners such as the Boeing 707 and Douglas DC-8.
-
B.
Pratt & Whitney R-985 Wasp Junior
The Pratt & Whitney R-985 Wasp Junior is a nine-cylinder, air-cooled radial aircraft engine widely used in the 1930s–1950s to power light transports, trainers, and utility aircraft.
-
C.
Pratt & Whitney J57
The Pratt & Whitney J57 is a pioneering American axial-flow turbojet engine widely used in early Cold War military aircraft and notable as one of the first jet engines to produce over 10,000 pounds of thrust.
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D.
Pratt & Whitney J58
The Pratt & Whitney J58 is a high-performance turbojet/ramjet hybrid engine developed for sustained high-speed, high-altitude flight, most famously powering the SR-71 Blackbird reconnaissance aircraft.
-
E.
Pratt & Whitney JT8D
The Pratt & Whitney JT8D is a low-bypass turbofan jet engine widely used on early short- to medium-range airliners and known for powering many classic narrow-body aircraft of the 1960s–1980s.
- 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: Pratt & Whitney JT3C Target entity description: The Pratt & Whitney JT3C is an early American turbojet engine that powered first-generation jet airliners and military aircraft in the late 1950s and early 1960s.
-
A.
Pratt & Whitney JT3D
The Pratt & Whitney JT3D is an early low-bypass turbofan jet engine widely used on first-generation jet airliners such as the Boeing 707 and Douglas DC-8.
-
B.
Pratt & Whitney R-985 Wasp Junior
The Pratt & Whitney R-985 Wasp Junior is a nine-cylinder, air-cooled radial aircraft engine widely used in the 1930s–1950s to power light transports, trainers, and utility aircraft.
-
C.
Pratt & Whitney J57
The Pratt & Whitney J57 is a pioneering American axial-flow turbojet engine widely used in early Cold War military aircraft and notable as one of the first jet engines to produce over 10,000 pounds of thrust.
-
D.
Pratt & Whitney J58
The Pratt & Whitney J58 is a high-performance turbojet/ramjet hybrid engine developed for sustained high-speed, high-altitude flight, most famously powering the SR-71 Blackbird reconnaissance aircraft.
-
E.
Pratt & Whitney JT8D
The Pratt & Whitney JT8D is a low-bypass turbofan jet engine widely used on early short- to medium-range airliners and known for powering many classic narrow-body aircraft of the 1960s–1980s.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf | turbojet engine ⓘ |
| application |
jet airliner
ⓘ
military aircraft ⓘ |
| bypassRatio | 0 ⓘ |
| category |
aircraft engine
ⓘ
turbojet ⓘ |
| civilDesignationOf | Pratt & Whitney J57 NERFINISHED ⓘ |
| compressorStages | 16 ⓘ |
| compressorType | axial ⓘ |
| configuration | single-spool ⓘ |
| cooling | air-cooled turbine ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| developedFrom | Pratt & Whitney J57 NERFINISHED ⓘ |
| engineType | axial-flow turbojet ⓘ |
| era | first-generation jet airliner era ⓘ |
| family | Pratt & Whitney JT3 engine family NERFINISHED ⓘ |
| firstRunDate | 1954 ⓘ |
| fuelType | kerosene jet fuel ⓘ |
| generation | first-generation jet engine ⓘ |
| introducedFor |
Boeing 707
NERFINISHED
ⓘ
Douglas DC-8 NERFINISHED ⓘ |
| manufacturer | Pratt & Whitney NERFINISHED ⓘ |
| militaryDesignation | J57 NERFINISHED ⓘ |
| notableFeature |
civil adaptation of a military turbojet
ⓘ
powered early intercontinental jet services ⓘ |
| notableRole | helped inaugurate the jet age in commercial aviation ⓘ |
| poweredAircraft |
Boeing 707-120
NERFINISHED
ⓘ
Boeing 720 prototype NERFINISHED ⓘ C-135A Stratolifter NERFINISHED ⓘ Douglas DC-8-10 NERFINISHED ⓘ KC-135A Stratotanker NERFINISHED ⓘ |
| serviceEntry | 1958 ⓘ |
| status |
largely retired from commercial service
ⓘ
out of production ⓘ |
| successor |
Pratt & Whitney JT3D
NERFINISHED
ⓘ
Pratt & Whitney JT8D NERFINISHED ⓘ |
| thrustClass | 11000–13000 lbf ⓘ |
| turbineStages | 2 ⓘ |
| usedBy |
Boeing
NERFINISHED
ⓘ
Douglas Aircraft Company NERFINISHED ⓘ United States Air Force ⓘ |
| usedInPeriod |
early 1960s
ⓘ
late 1950s ⓘ |
| usedOn |
early production Boeing 707s
ⓘ
early production Douglas DC-8s ⓘ |
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: Pratt & Whitney JT3C Description of subject: The Pratt & Whitney JT3C is an early American turbojet engine that powered first-generation jet airliners and military aircraft in the late 1950s and early 1960s.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Pratt & Whitney JT3C turbojet