JT11D-20
E898157
The JT11D-20, better known as the Pratt & Whitney J58, is a high-performance afterburning turbojet engine developed for sustained Mach 3+ flight, most famously powering the Lockheed SR-71 Blackbird reconnaissance aircraft.
All labels observed (1)
| Label | Occurrences |
|---|---|
| JT11D-20 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10984999 — 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: JT11D-20 Context triple: [Pratt & Whitney J58, NATOReportingName, JT11D-20]
-
A.
JT16
JT16 is the station code assigned to Odawara Station on Japan’s JR East railway network.
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B.
J120
J120 is the fourth-generation Toyota Land Cruiser Prado series, a mid-size SUV platform produced in the early 2000s known for its off-road capability and global popularity.
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C.
NJ-12
NJ-12 is a New Jersey congressional district represented in the U.S. House of Representatives, encompassing parts of central New Jersey including portions of Mercer, Middlesex, Somerset, and Union counties.
-
D.
QT-1
QT-1 is a robot character from Isaac Asimov’s science fiction story “Reason,” notable for its philosophical questioning of reality and its creators.
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E.
J100
J100 is the internal model code used by Lexus to designate the second generation of its full-size luxury SUV, the Lexus LX.
- 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: JT11D-20 Target entity description: The JT11D-20, better known as the Pratt & Whitney J58, is a high-performance afterburning turbojet engine developed for sustained Mach 3+ flight, most famously powering the Lockheed SR-71 Blackbird reconnaissance aircraft.
-
A.
JT16
JT16 is the station code assigned to Odawara Station on Japan’s JR East railway network.
-
B.
J120
J120 is the fourth-generation Toyota Land Cruiser Prado series, a mid-size SUV platform produced in the early 2000s known for its off-road capability and global popularity.
-
C.
NJ-12
NJ-12 is a New Jersey congressional district represented in the U.S. House of Representatives, encompassing parts of central New Jersey including portions of Mercer, Middlesex, Somerset, and Union counties.
-
D.
QT-1
QT-1 is a robot character from Isaac Asimov’s science fiction story “Reason,” notable for its philosophical questioning of reality and its creators.
-
E.
J100
J100 is the internal model code used by Lexus to designate the second generation of its full-size luxury SUV, the Lexus LX.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
afterburning turbojet engine
ⓘ
turbojet engine ⓘ |
| alsoKnownAs | Pratt & Whitney J58 NERFINISHED ⓘ |
| civilDesignation | JT11D-20 NERFINISHED ⓘ |
| compressorType | axial-flow compressor ⓘ |
| coolingMethod | fuel-cooled components ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designedBy | Pratt & Whitney engineering team ⓘ |
| designedForAltitude | high-altitude flight ⓘ |
| designedForMissionProfile | high-speed strategic reconnaissance ⓘ |
| designedForSpeed | Mach 3+ ⓘ |
| developedFor | sustained Mach 3+ flight ⓘ |
| enteredServiceWith | Lockheed A-12 NERFINISHED ⓘ |
| era | Cold War ⓘ |
| fuelType | JP-7 ⓘ |
| hasAfterburner | true ⓘ |
| hasConfiguration | single-spool fan with multi-stage compressor ⓘ |
| hasFeature |
afterburner
ⓘ
bleed-bypass system ⓘ hybrid turbojet/ramjet-like operation at high Mach ⓘ |
| hasInletIntegration | variable-geometry inlet system on SR-71 ⓘ |
| hasSpecialRequirement | low-volatility fuel (JP-7) ⓘ |
| hasSpecialSystem | fuel as heat sink for engine and airframe ⓘ |
| manufacturer | Pratt & Whitney NERFINISHED ⓘ |
| militaryDesignation | J58 NERFINISHED ⓘ |
| notableCharacteristic |
ability to operate continuously at very high turbine inlet temperatures
ⓘ
transition of thrust contribution from engine core to inlet and afterburner at high Mach ⓘ |
| notableFor |
operation as part of an integrated inlet-engine system
ⓘ
sustained high-Mach cruise capability ⓘ |
| notableUserPlatform |
Lockheed SR-71A
NERFINISHED
ⓘ
Lockheed SR-71B NERFINISHED ⓘ Lockheed SR-71C NERFINISHED ⓘ |
| numberOfShafts | two-shaft ⓘ |
| operatedWith |
bypass doors for bleed air management
ⓘ
spike-controlled inlets ⓘ |
| optimizedFor |
high inlet temperature tolerance
ⓘ
long-duration supersonic cruise ⓘ |
| primaryRole | reconnaissance aircraft propulsion ⓘ |
| programAssociation |
Blackbird program
ⓘ
Oxcart program NERFINISHED ⓘ |
| propulsionType | turbojet ⓘ |
| successorTo | earlier Pratt & Whitney military turbojets ⓘ |
| thrustClass | high-thrust military turbojet ⓘ |
| usedBy | United States Air Force ⓘ |
| usedInAircraft |
Lockheed A-12
NERFINISHED
ⓘ
Lockheed SR-71 Blackbird NERFINISHED ⓘ Lockheed YF-12 NERFINISHED ⓘ |
| usedInRole | strategic reconnaissance ⓘ |
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: JT11D-20 Description of subject: The JT11D-20, better known as the Pratt & Whitney J58, is a high-performance afterburning turbojet engine developed for sustained Mach 3+ flight, most famously powering the Lockheed SR-71 Blackbird reconnaissance aircraft.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.