Convair 340
E936872
The Convair 340 is an American twin‑engine, pressurized short- to medium-haul airliner developed in the early 1950s as an enlarged and improved member of Convair’s successful family of piston-powered transports.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Convair 340 canonical | 8 |
| Convair 340 (re‑engined conversions) | 1 |
| Convair CV-340 | 1 |
| Convair CV‑340 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11562471 — 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: Convair 340 Context triple: [Convair 240, successor, Convair 340]
-
A.
Convair 240
The Convair 240 is a twin‑engine, pressurized short- to medium-haul airliner introduced in the late 1940s and widely used by airlines and military operators around the world.
-
B.
Convair 440
The Convair 440 is a twin-engine, short- to medium-range commercial airliner developed in the 1950s as an improved, pressurized variant of Convair’s successful series of piston-powered passenger aircraft.
-
C.
Convair 990 Coronado
The Convair 990 Coronado was a narrow-body jet airliner introduced in the early 1960s, known for being one of the fastest commercial passenger aircraft ever built.
-
D.
Convair 880
The Convair 880 was a narrow-body jet airliner introduced in the early 1960s, known for its high speed but limited commercial success compared to contemporaries like the Boeing 707.
-
E.
Grumman Gulfstream II
The Grumman Gulfstream II is a twin-engine business jet introduced in the 1960s that became one of the early iconic long-range corporate 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: Convair 340 Target entity description: The Convair 340 is an American twin‑engine, pressurized short- to medium-haul airliner developed in the early 1950s as an enlarged and improved member of Convair’s successful family of piston-powered transports.
-
A.
Convair 240
The Convair 240 is a twin‑engine, pressurized short- to medium-haul airliner introduced in the late 1940s and widely used by airlines and military operators around the world.
-
B.
Convair 440
The Convair 440 is a twin-engine, short- to medium-range commercial airliner developed in the 1950s as an improved, pressurized variant of Convair’s successful series of piston-powered passenger aircraft.
-
C.
Convair 990 Coronado
The Convair 990 Coronado was a narrow-body jet airliner introduced in the early 1960s, known for being one of the fastest commercial passenger aircraft ever built.
-
D.
Convair 880
The Convair 880 was a narrow-body jet airliner introduced in the early 1960s, known for its high speed but limited commercial success compared to contemporaries like the Boeing 707.
-
E.
Grumman Gulfstream II
The Grumman Gulfstream II is a twin-engine business jet introduced in the 1960s that became one of the early iconic long-range corporate aircraft.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
airliner
ⓘ
piston‑engined airliner ⓘ pressurized aircraft ⓘ twin‑engine aircraft ⓘ |
| aircraftCategory | civil transport aircraft ⓘ |
| aircraftConfiguration | low‑wing monoplane ⓘ |
| aircraftFamily |
Convair CV‑240 family
ⓘ
linked to:
Convair CV-240 family
|
| aircraftRole | short‑ to medium‑haul airliner ⓘ |
| alsoKnownAs | CV‑340 ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| crew |
2 pilots
ⓘ
cabin attendants ⓘ |
| designedFor |
regional airline service
ⓘ
short‑ to medium‑range routes ⓘ |
| designFeature |
all‑metal construction
ⓘ
increased wingspan compared to Convair 240 ⓘ lengthened fuselage compared to Convair 240 ⓘ more powerful engines than Convair 240 ⓘ tricycle landing gear ⓘ |
| developedInPeriod | early 1950s ⓘ |
| engineType | piston engine ⓘ |
| enteredServiceInDecade | 1950s ⓘ |
| era | post‑World War II airliner ⓘ |
| firstFlightDate | 1951 ⓘ |
| fuselageType | pressurized ⓘ |
| improvementOver | Convair 240 ⓘ |
| manufacturer | Convair ⓘ |
| notableCharacteristic | enlarged and improved member of Convair’s piston‑powered transport family ⓘ |
| numberOfEngines | 2 ⓘ |
| operatorType |
cargo operators (converted)
ⓘ
commercial airlines ⓘ some military and government operators ⓘ |
| powerplant | two Pratt & Whitney R‑2800 Double Wasp radial engines ⓘ |
| predecessor |
Convair 240
ⓘ
Convair 340 prototype derived from Convair 240/340 series ⓘ |
| status |
out of regular airline service
ⓘ
some aircraft preserved or used in special roles ⓘ |
| successor | Convair 440 ⓘ |
| typicalPassengerCapacity | around 44 passengers ⓘ |
| usedBy |
United States domestic airlines
ⓘ
linked to:
U.S. airlines
various international airlines ⓘ |
| usedFor |
cargo transport (converted aircraft)
ⓘ
military transport (in some operators) ⓘ passenger transport ⓘ |
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: Convair 340 Description of subject: The Convair 340 is an American twin‑engine, pressurized short- to medium-haul airliner developed in the early 1950s as an enlarged and improved member of Convair’s successful family of piston-powered transports.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Convair 340
subject linked to:
Metropolitan
subject linked to:
Metropolitan
subject linked to:
Convair 580 (turboprop conversion)
linked to: Convair 340
subject linked to:
Convair 580 (turboprop conversion)
linked to: Convair 340