Boeing 737-400
E916761
The Boeing 737-400 is a stretched, short- to medium-haul variant of Boeing’s popular 737 Classic series, widely used by airlines in the late 20th and early 21st centuries for high-density passenger routes.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Boeing 737-400 canonical | 10 |
| Boeing 737-400F | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11237586 — 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: Boeing 737-400 Context triple: [Virgin Express, aircraftTypeOperated, Boeing 737-400]
-
A.
Boeing 737-700
The Boeing 737-700 is a member of Boeing's Next Generation 737 family, a twin-engine narrow-body jet airliner widely used for short- to medium-haul commercial flights.
-
B.
Boeing 737-300
The Boeing 737-300 is a twin-engine, short- to medium-range narrow-body jet airliner that belongs to the "Classic" series of 737s and was widely used by airlines worldwide from the 1980s onward.
-
C.
Boeing 737-500
The Boeing 737-500 is a short- to medium-range, narrow-body jet airliner from the 737 Classic series, designed as a shorter, updated variant of the 737-300 for improved efficiency on lower-demand routes.
-
D.
Boeing 757
The Boeing 757 is a mid-size, narrow-body twin-engine jet airliner widely used for short- to medium- and some long-haul routes, known for its strong performance and versatility.
-
E.
Boeing 767
The Boeing 767 is a wide-body, twin-engine jet airliner widely used for medium- to long-haul commercial flights and cargo operations.
- 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: Boeing 737-400 Target entity description: The Boeing 737-400 is a stretched, short- to medium-haul variant of Boeing’s popular 737 Classic series, widely used by airlines in the late 20th and early 21st centuries for high-density passenger routes.
-
A.
Boeing 737-700
The Boeing 737-700 is a member of Boeing's Next Generation 737 family, a twin-engine narrow-body jet airliner widely used for short- to medium-haul commercial flights.
-
B.
Boeing 737-300
The Boeing 737-300 is a twin-engine, short- to medium-range narrow-body jet airliner that belongs to the "Classic" series of 737s and was widely used by airlines worldwide from the 1980s onward.
-
C.
Boeing 737-500
The Boeing 737-500 is a short- to medium-range, narrow-body jet airliner from the 737 Classic series, designed as a shorter, updated variant of the 737-300 for improved efficiency on lower-demand routes.
-
D.
Boeing 757
The Boeing 757 is a mid-size, narrow-body twin-engine jet airliner widely used for short- to medium- and some long-haul routes, known for its strong performance and versatility.
-
E.
Boeing 767
The Boeing 767 is a wide-body, twin-engine jet airliner widely used for medium- to long-haul commercial flights and cargo operations.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Boeing 737 Classic variant
ⓘ
narrow-body jet airliner ⓘ |
| aircraftCategory | commercial airliner ⓘ |
| aircraftConfiguration | low-wing monoplane ⓘ |
| aircraftType | twin-engine jet ⓘ |
| airframeMaterial | aluminum alloy ⓘ |
| cargoConversionVariant |
Boeing 737-400F
ⓘ
Boeing 737-400SF ⓘ
linked to:
Boeing 737 freighter
|
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| cruiseSpeed | Mach 0.74 ⓘ |
| designedBy | Boeing ⓘ |
| designedFor | high-density short- to medium-haul routes ⓘ |
| engineModel |
CFM International CFM56-3
ⓘ
linked to:
CFM International CFM56
|
| engineType | turbofan ⓘ |
| enteredServiceWith | Piedmont Airlines ⓘ |
| enteredServiceYear | 1988 ⓘ |
| familyGeneration | second generation 737 ⓘ |
| firstCustomer | Piedmont Airlines ⓘ |
| firstFlightDate | 1988-02-19 ⓘ |
| flightDeckCrew | 2 ⓘ |
| followedBy | Boeing 737-800 ⓘ |
| fuselageLength | 36.45 m ⓘ |
| hasWinglets | no factory-installed winglets ⓘ |
| height | 11.13 m ⓘ |
| ICAODesignator | B734 ⓘ |
| introductionDate | 1988 ⓘ |
| landingGearType | tricycle retractable landing gear ⓘ |
| manufacturer |
Boeing Commercial Airplanes
ⓘ
linked to:
Boeing
|
| marketPosition | stretched version of 737-300 ⓘ |
| maximumSeatingCapacity | 188 passengers ⓘ |
| maximumTakeoffWeight | 68000 kg ⓘ |
| numberOfEngines | 2 ⓘ |
| numberOfOverwingExits | 4 ⓘ |
| numberOfPassengerDoors | 4 main passenger doors ⓘ |
| partOfSeries |
Boeing 737 Classic family
ⓘ
linked to:
Boeing 737 Classic
|
| precededBy | Boeing 737-300 ⓘ |
| primaryRole | short- to medium-haul passenger transport ⓘ |
| productionEndYear | 2000 ⓘ |
| productionStartYear | 1988 ⓘ |
| productionStatus | out of production ⓘ |
| rangeWithTypicalPayload | approximately 3700 km ⓘ |
| retirementStatus | largely retired from major passenger airlines ⓘ |
| totalProduced | 486 ⓘ |
| typicalCruiseAltitude | 35000 ft ⓘ |
| typicalTwoClassCapacity | 146 passengers ⓘ |
| usedFor |
cargo transport after conversion
ⓘ
passenger transport ⓘ |
| wingspan | 28.88 m ⓘ |
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: Boeing 737-400 Description of subject: The Boeing 737-400 is a stretched, short- to medium-haul variant of Boeing’s popular 737 Classic series, widely used by airlines in the late 20th and early 21st centuries for high-density passenger routes.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Boeing 737-400