Boeing 747SP
E15965
The Boeing 747SP is a shortened, long-range variant of the Boeing 747 airliner, notable for its use in specialized roles such as NASA’s SOFIA airborne observatory.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Boeing 747SP canonical | 3 |
| N747NA | 2 |
| Boeing 747SP SOFIA aircraft | 1 |
| Special Performance 747 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T135672 — 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 747SP Context triple: [SOFIA airborne observatory operations, usesVehicle, Boeing 747SP]
-
A.
Bombardier M5000
The Bombardier M5000 is a modern, low-floor light rail tram used extensively on the Manchester Metrolink network in the United Kingdom.
-
B.
Embraer 190
The Embraer 190 is a Brazilian-made narrow-body regional jet airliner designed for short- to medium-haul routes, widely used by airlines around the world.
-
C.
Pilatus PC-21
The Pilatus PC-21 is a Swiss-made, next-generation turboprop military trainer aircraft designed to provide jet-like performance and advanced training capabilities for fighter pilots.
-
D.
Lockheed C-130 Hercules
The Lockheed C-130 Hercules is a four‑engine turboprop military transport aircraft renowned worldwide for its versatility in tactical airlift, humanitarian missions, and special operations since the 1950s.
-
E.
Airbus A330 MRTT Phénix
The Airbus A330 MRTT Phénix is a French multi-role tanker and transport aircraft derived from the Airbus A330 airliner, used for aerial refueling, strategic transport, and medical evacuation missions.
- 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 747SP Target entity description: The Boeing 747SP is a shortened, long-range variant of the Boeing 747 airliner, notable for its use in specialized roles such as NASA’s SOFIA airborne observatory.
-
A.
Bombardier M5000
The Bombardier M5000 is a modern, low-floor light rail tram used extensively on the Manchester Metrolink network in the United Kingdom.
-
B.
Embraer 190
The Embraer 190 is a Brazilian-made narrow-body regional jet airliner designed for short- to medium-haul routes, widely used by airlines around the world.
-
C.
Pilatus PC-21
The Pilatus PC-21 is a Swiss-made, next-generation turboprop military trainer aircraft designed to provide jet-like performance and advanced training capabilities for fighter pilots.
-
D.
Lockheed C-130 Hercules
The Lockheed C-130 Hercules is a four‑engine turboprop military transport aircraft renowned worldwide for its versatility in tactical airlift, humanitarian missions, and special operations since the 1950s.
-
E.
Airbus A330 MRTT Phénix
The Airbus A330 MRTT Phénix is a French multi-role tanker and transport aircraft derived from the Airbus A330 airliner, used for aerial refueling, strategic transport, and medical evacuation missions.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
Boeing 747 variant
ⓘ
long-range airliner ⓘ wide-body airliner ⓘ |
| aircraftType | wide-body jet ⓘ |
| airframeModifiedFor |
Stratospheric Observatory for Infrared Astronomy
ⓘ
linked to:
SOFIA airborne observatory operations
|
| alsoKnownAs |
Special Performance 747
ⓘ
linked to:
Boeing 747SP
|
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| crew | 2 flight crew plus cabin crew ⓘ |
| derivativeOf |
Boeing 747-100
ⓘ
linked to:
Boeing 747
|
| designGoal |
increased range
ⓘ
reduced fuselage length ⓘ |
| engineModel |
Pratt & Whitney JT9D
ⓘ
Rolls-Royce RB211 ⓘ |
| engineType | turbofan ⓘ |
| enteredServiceWith | Pan American World Airways ⓘ |
| firstFlight | 1975-07-04 ⓘ |
| fuselageConfiguration | twin-aisle ⓘ |
| fuselageLengthComparedTo747-100 | shortened ⓘ |
| height | 19.33 m ⓘ |
| introduced | 1976 ⓘ |
| length | 56.31 m ⓘ |
| manufacturer |
Boeing Commercial Airplanes
ⓘ
linked to:
Boeing
|
| marketedFor | ultra-long-haul routes ⓘ |
| maximumRange | approximately 12,300 km ⓘ |
| maximumTakeoffWeight | approximately 700,000 lb ⓘ |
| nameMeaning | SP stands for Special Performance ⓘ |
| notableFeature |
shortened fuselage with long-range capability
ⓘ
shorter upper deck than later 747 variants ⓘ |
| notableUse |
SOFIA airborne observatory
ⓘ
linked to:
SOFIA airborne observatory operations
|
| numberBuilt | 45 ⓘ |
| numberOfEngines | 4 ⓘ |
| originalSOFIAOperator | Pan American World Airways ⓘ |
| partOfSeries |
Boeing 747 family
ⓘ
linked to:
Boeing 747
|
| primaryUser |
Iran Air
ⓘ
Pan American World Airways ⓘ Qantas ⓘ South African Airways ⓘ Trans World Airlines ⓘ |
| productionEnd | 1987 ⓘ |
| productionStart | 1975 ⓘ |
| registrationOfSOFIAAircraft |
N747NA
ⓘ
linked to:
Boeing 747SP
|
| role |
VIP transport
ⓘ
airborne observatory platform ⓘ passenger airliner ⓘ |
| seatingCapacity | around 230 passengers ⓘ |
| seatingConfiguration |
three-class
ⓘ
two-class ⓘ |
| status |
largely retired from commercial service
ⓘ
out of production ⓘ |
| typicalCruiseSpeed | Mach 0.85 ⓘ |
| usedBy |
German Aerospace Center
ⓘ
linked to:
German Aerospace Center (DLR)
NASA ⓘ |
| wingspan | 59.64 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 747SP Description of subject: The Boeing 747SP is a shortened, long-range variant of the Boeing 747 airliner, notable for its use in specialized roles such as NASA’s SOFIA airborne observatory.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Boeing 747SP
linked to: Boeing 747SP
linked to: Boeing 747SP
subject linked to:
Deutsches SOFIA Institut (DSI)
linked to: Boeing 747SP