Pratt & Whitney JT8D
E119288
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.
All labels observed (15)
| Label | Occurrences |
|---|---|
| Pratt & Whitney JT8D canonical | 5 |
| JT8D series | 1 |
| JT8D-1 | 1 |
| JT8D-11 | 1 |
| JT8D-15 | 1 |
| JT8D-17 | 1 |
| JT8D-209 | 1 |
| JT8D-217 | 1 |
| JT8D-219 | 1 |
| JT8D-7 | 1 |
| JT8D-9 | 1 |
| Pratt & Whitney JT8D engines | 1 |
| Pratt & Whitney JT8D-17 | 1 |
| Pratt & Whitney JT8D-200 series | 1 |
| license-built Pratt & Whitney JT8D | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1018440 — 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 JT8D Context triple: [Boeing 727, engineModel, Pratt & Whitney JT8D]
-
A.
Pratt & Whitney JT9D
The Pratt & Whitney JT9D is a high-bypass turbofan jet engine that powered early wide-body airliners and was notably used on the original Boeing 747 series.
-
B.
Rolls-Royce RB211
The Rolls-Royce RB211 is a high-bypass turbofan jet engine that was pioneering in its use of advanced materials and technology and became a cornerstone powerplant for wide-body airliners.
-
C.
General Electric CF34-10E
The General Electric CF34-10E is a high-bypass turbofan engine developed by GE Aviation to power modern regional jets, particularly optimized for efficiency, reliability, and low emissions.
-
D.
General Electric F404
The General Electric F404 is a family of afterburning turbofan jet engines widely used in modern fighter aircraft for their reliability, high thrust-to-weight ratio, and ease of maintenance.
-
E.
Pratt & Whitney F117-PW-100
The Pratt & Whitney F117-PW-100 is a high-bypass turbofan jet engine used to power the Boeing C-17 Globemaster III military transport aircraft.
- 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 JT8D Target entity description: 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.
-
A.
Pratt & Whitney JT9D
The Pratt & Whitney JT9D is a high-bypass turbofan jet engine that powered early wide-body airliners and was notably used on the original Boeing 747 series.
-
B.
Rolls-Royce RB211
The Rolls-Royce RB211 is a high-bypass turbofan jet engine that was pioneering in its use of advanced materials and technology and became a cornerstone powerplant for wide-body airliners.
-
C.
General Electric CF34-10E
The General Electric CF34-10E is a high-bypass turbofan engine developed by GE Aviation to power modern regional jets, particularly optimized for efficiency, reliability, and low emissions.
-
D.
General Electric F404
The General Electric F404 is a family of afterburning turbofan jet engines widely used in modern fighter aircraft for their reliability, high thrust-to-weight ratio, and ease of maintenance.
-
E.
Pratt & Whitney F117-PW-100
The Pratt & Whitney F117-PW-100 is a high-bypass turbofan jet engine used to power the Boeing C-17 Globemaster III military transport aircraft.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
low-bypass turbofan
ⓘ
turbofan engine ⓘ |
| application |
BAC One-Eleven (re-engined variants)
ⓘ
Boeing 727 ⓘ Boeing 737 ⓘ
surface form:
Boeing 737-100
Boeing 737 ⓘ
surface form:
Boeing 737-200
Hawker Siddeley Trident ⓘ
surface form:
Hawker Siddeley Trident 1E
McDonnell Douglas DC-9 ⓘ McDonnell Douglas MD-80 ⓘ
surface form:
McDonnell Douglas MD-80 series
|
| bypassRatio | low bypass ⓘ |
| compressorType | axial-flow ⓘ |
| configuration | two-spool ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designGoal | improved fuel efficiency over turbojets of its era ⓘ |
| enteredService | mid-1960s ⓘ |
| familyMember |
Pratt & Whitney JT8D
self-linksurface differs
ⓘ
surface form:
JT8D-1
Pratt & Whitney JT8D self-linksurface differs ⓘ
surface form:
JT8D-11
Pratt & Whitney JT8D self-linksurface differs ⓘ
surface form:
JT8D-15
Pratt & Whitney JT8D self-linksurface differs ⓘ
surface form:
JT8D-17
Pratt & Whitney JT8D self-linksurface differs ⓘ
surface form:
JT8D-209
Pratt & Whitney JT8D self-linksurface differs ⓘ
surface form:
JT8D-217
Pratt & Whitney JT8D self-linksurface differs ⓘ
surface form:
JT8D-219
Pratt & Whitney JT8D self-linksurface differs ⓘ
surface form:
JT8D-7
Pratt & Whitney JT8D self-linksurface differs ⓘ
surface form:
JT8D-9
|
| firstRun | 1963 ⓘ |
| fuelType | Jet-A kerosene ⓘ |
| manufacturer | Pratt & Whitney ⓘ |
| marketRole | workhorse engine for early jet airliners ⓘ |
| natoDesignation | F401 (military derivative context) ⓘ |
| notableFeature |
distinctive high noise levels by modern standards
ⓘ
rear-fuselage mounting on many aircraft ⓘ |
| notableFor | widespread use in 1960s–1980s narrow-body jets ⓘ |
| notableOperator |
American Airlines
ⓘ
surface form:
American Airlines (historical)
Delta Air Lines ⓘ
surface form:
Delta Air Lines (historical)
Scandinavian Airlines ⓘ
surface form:
SAS Scandinavian Airlines (historical)
|
| regulatoryContext | subject to Stage 3 and Stage 4 noise compliance via hushkits or re-engining ⓘ |
| relatedEngine |
Pratt & Whitney JT3D
ⓘ
Pratt & Whitney JT9D ⓘ |
| servicePeriod | 1960s–present (limited service) ⓘ |
| status | out of production ⓘ |
| successor |
CFM International CFM56
ⓘ
Pratt & Whitney JT10D (cancelled successor project) ⓘ Pratt & Whitney PW2000 ⓘ |
| thrustRange | 14000–17000 lbf ⓘ |
| usedFor |
narrow-body jetliners
ⓘ
short- to medium-range airliners ⓘ |
| usedOn |
business jet and special-mission derivatives of DC-9/MD-80
ⓘ
cargo-converted narrow-body aircraft ⓘ |
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 JT8D Description of subject: 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.
Referenced by (19)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
McDonnell Douglas YC-15
this entity surface form:
Pratt & Whitney JT8D-17
this entity surface form:
JT8D series
this entity surface form:
license-built Pratt & Whitney JT8D
this entity surface form:
JT8D-1
this entity surface form:
JT8D-7
this entity surface form:
JT8D-9
this entity surface form:
JT8D-11
this entity surface form:
JT8D-15
this entity surface form:
JT8D-17
this entity surface form:
JT8D-209
this entity surface form:
JT8D-217
this entity surface form:
JT8D-219
subject surface form:
Sud Aviation Caravelle
this entity surface form:
Pratt & Whitney JT8D engines
this entity surface form:
Pratt & Whitney JT8D-200 series