Yakovlev Yak-40
E138709
The Yakovlev Yak-40 is a small Soviet-era three-engined regional jet airliner designed for short-haul routes and operations from poorly equipped airfields.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Yakovlev Yak-40 canonical | 4 |
| Yak-40 | 2 |
| Yakovlev Yak-40D | 1 |
| Yakovlev Yak-40K | 1 |
| Yakovlev Yak-40VIP | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1196223 — 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: Yakovlev Yak-40 Context triple: [AeroCaribbean, operatedAircraftType, Yakovlev Yak-40]
-
A.
Tupolev Tu-134 airliner
The Tupolev Tu-134 airliner is a Soviet-era twin-engine jet used widely by Eastern Bloc airlines and militaries, known for its rugged design and extensive service from the 1960s onward.
-
B.
Tupolev Tu-204 (historically)
The Tupolev Tu-204 is a Russian twin‑engine medium-range jet airliner developed in the late Soviet era as a modern successor to the Tu-154, comparable in role to the Boeing 757.
-
C.
Tupolev Tu-114 airliner
The Tupolev Tu-114 airliner is a Soviet long-range turboprop passenger aircraft, renowned for being one of the fastest and largest propeller-driven airliners ever built and for serving prestigious international routes during the Cold War era.
-
D.
Tupolev Tu-104 jet airliner
The Tupolev Tu-104 was one of the world’s first successful jet airliners, developed in the Soviet Union in the 1950s and used extensively by Aeroflot for medium-range passenger flights.
-
E.
Antonov An-158 (historically)
The Antonov An-158 is a Ukrainian-designed regional jet airliner, developed as a stretched variant of the An-148 to carry more passengers on short- to medium-haul routes.
- 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: Yakovlev Yak-40 Target entity description: The Yakovlev Yak-40 is a small Soviet-era three-engined regional jet airliner designed for short-haul routes and operations from poorly equipped airfields.
-
A.
Tupolev Tu-134 airliner
The Tupolev Tu-134 airliner is a Soviet-era twin-engine jet used widely by Eastern Bloc airlines and militaries, known for its rugged design and extensive service from the 1960s onward.
-
B.
Tupolev Tu-204 (historically)
The Tupolev Tu-204 is a Russian twin‑engine medium-range jet airliner developed in the late Soviet era as a modern successor to the Tu-154, comparable in role to the Boeing 757.
-
C.
Tupolev Tu-114 airliner
The Tupolev Tu-114 airliner is a Soviet long-range turboprop passenger aircraft, renowned for being one of the fastest and largest propeller-driven airliners ever built and for serving prestigious international routes during the Cold War era.
-
D.
Tupolev Tu-104 jet airliner
The Tupolev Tu-104 was one of the world’s first successful jet airliners, developed in the Soviet Union in the 1950s and used extensively by Aeroflot for medium-range passenger flights.
-
E.
Antonov An-158 (historically)
The Antonov An-158 is a Ukrainian-designed regional jet airliner, developed as a stretched variant of the An-148 to carry more passengers on short- to medium-haul routes.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
regional jet airliner
ⓘ
short-haul airliner ⓘ three-engined jet aircraft ⓘ |
| aircraftCategory | civil transport aircraft ⓘ |
| countryOfOrigin | Soviet Union ⓘ |
| crew | 2 ⓘ |
| cruiseSpeed | 510 km/h ⓘ |
| designedBy | Alexander Yakovlev ⓘ |
| designedFor |
operations from poorly equipped airfields
ⓘ
short-haul routes ⓘ |
| emptyWeight | 9100 kg ⓘ |
| engineModel | Ivchenko AI-25 ⓘ |
| enginePlacement | rear fuselage ⓘ |
| engineType | turbofan ⓘ |
| enteredServiceWith | Aeroflot ⓘ |
| era | Cold War ⓘ |
| firstFlight | 1966-10-21 ⓘ |
| firstOperator | Aeroflot ⓘ |
| hasVariant |
Yakovlev Yak-40
self-linksurface differs
ⓘ
surface form:
Yakovlev Yak-40D
Yakovlev Yak-40 self-linksurface differs ⓘ
surface form:
Yakovlev Yak-40K
Yakovlev Yak-40 self-linksurface differs ⓘ
surface form:
Yakovlev Yak-40VIP
|
| height | 6.50 m ⓘ |
| icaoAircraftTypeDesignator | YK40 ⓘ |
| introduced | 1968 ⓘ |
| landingGear | tricycle retractable landing gear ⓘ |
| landingRun | 600 m ⓘ |
| length | 20.36 m ⓘ |
| manufacturer | Yakovlev Design Bureau ⓘ |
| maximumPassengerCapacity | 32 ⓘ |
| maximumSpeed | 550 km/h ⓘ |
| maximumTakeoffWeight | 16000 kg ⓘ |
| notableFeature |
ability to operate from unpaved airstrips
ⓘ
integral airstairs in rear fuselage ⓘ |
| numberBuilt | over 1000 ⓘ |
| numberOfEngines | 3 ⓘ |
| operator |
Aeroflot
ⓘ
Interflug ⓘ LOT Polish Airlines ⓘ |
| powerplantCount | 3 Ivchenko AI-25 turbofan engines ⓘ |
| primaryUse | regional passenger transport ⓘ |
| productionEnd | 1981 ⓘ |
| productionStart | 1967 ⓘ |
| range | 1800 km ⓘ |
| serviceCeiling | 8000 m ⓘ |
| status | in limited service ⓘ |
| tailConfiguration | T-tail ⓘ |
| takeoffRun | 900 m ⓘ |
| typicalPassengerCapacity | 27 ⓘ |
| wingArea | 70.0 m2 ⓘ |
| wingConfiguration | low-wing ⓘ |
| wingspan | 25.00 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: Yakovlev Yak-40 Description of subject: The Yakovlev Yak-40 is a small Soviet-era three-engined regional jet airliner designed for short-haul routes and operations from poorly equipped airfields.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Yakovlev Yak-40K
this entity surface form:
Yakovlev Yak-40D
this entity surface form:
Yakovlev Yak-40VIP
this entity surface form:
Yak-40
this entity surface form:
Yak-40