Northrop N-156 project
E591502
The Northrop N-156 project was a late-1950s lightweight jet fighter design program that led to the development of the F-5 Freedom Fighter and T-38 Talon.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Northrop N-156 project canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6424182 — 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: Northrop N-156 project Context triple: [F-5 Freedom Fighter, developedFrom, Northrop N-156 project]
-
A.
Northrop X-21
The Northrop X-21 was an experimental U.S. jet aircraft of the 1960s designed to test laminar-flow control technology for improved aerodynamic efficiency.
-
B.
Lockheed A-12 program
The Lockheed A-12 program was a top-secret CIA reconnaissance aircraft development effort in the early 1960s that pioneered the high-speed, high-altitude stealth technologies later refined in the SR-71 Blackbird.
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C.
Northrop M2-F2
The Northrop M2-F2 was an experimental lifting-body research aircraft developed in the 1960s to study wingless reentry vehicle aerodynamics and landing characteristics for future spacecraft.
-
D.
Rockwell X-24C concept
The Rockwell X-24C concept was a proposed hypersonic research aircraft in NASA’s X-plane program, intended to explore advanced high-speed flight and reentry technologies.
-
E.
Northrop X-4 Bantam
The Northrop X-4 Bantam was a late-1940s American experimental jet aircraft designed to test the stability and handling of a tailless, swept-wing configuration at transonic speeds.
- 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: Northrop N-156 project Target entity description: The Northrop N-156 project was a late-1950s lightweight jet fighter design program that led to the development of the F-5 Freedom Fighter and T-38 Talon.
-
A.
Northrop X-21
The Northrop X-21 was an experimental U.S. jet aircraft of the 1960s designed to test laminar-flow control technology for improved aerodynamic efficiency.
-
B.
Lockheed A-12 program
The Lockheed A-12 program was a top-secret CIA reconnaissance aircraft development effort in the early 1960s that pioneered the high-speed, high-altitude stealth technologies later refined in the SR-71 Blackbird.
-
C.
Northrop M2-F2
The Northrop M2-F2 was an experimental lifting-body research aircraft developed in the 1960s to study wingless reentry vehicle aerodynamics and landing characteristics for future spacecraft.
-
D.
Rockwell X-24C concept
The Rockwell X-24C concept was a proposed hypersonic research aircraft in NASA’s X-plane program, intended to explore advanced high-speed flight and reentry technologies.
-
E.
Northrop X-4 Bantam
The Northrop X-4 Bantam was a late-1940s American experimental jet aircraft designed to test the stability and handling of a tailless, swept-wing configuration at transonic speeds.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
aircraft design program
ⓘ
jet fighter development project ⓘ |
| aircraftCategory |
light fighter
ⓘ
supersonic trainer ⓘ |
| aircraftConfiguration | twin-engine jet ⓘ |
| aircraftRoleTargeted |
fighter
ⓘ
trainer ⓘ |
| aircraftType | jet-powered military aircraft ⓘ |
| airIntakeConfiguration | fuselage-side intakes ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designBureau | Northrop advanced design team NERFINISHED ⓘ |
| designGoal |
high maneuverability
ⓘ
lightweight airframe ⓘ low-cost fighter ⓘ simplicity of maintenance ⓘ |
| designPhilosophy |
cost-effective performance
ⓘ
ease of operation for smaller air forces ⓘ |
| developer | Northrop Corporation NERFINISHED ⓘ |
| engineType | turbojet ⓘ |
| era | post-Korean War era ⓘ |
| hasOutcome |
Northrop F-5 Freedom Fighter
NERFINISHED
ⓘ
Northrop T-38 Talon NERFINISHED ⓘ |
| hasPurpose | development of a lightweight jet fighter ⓘ |
| industry | aerospace industry ⓘ |
| influenced | lightweight fighter design philosophy ⓘ |
| ledToVariant |
single-seat fighter variant
ⓘ
two-seat trainer variant ⓘ |
| marketTarget | export fighter market ⓘ |
| militaryBranchTargeted | United States Air Force NERFINISHED ⓘ |
| notableFor |
forming basis of widely exported F-5 fighter family
ⓘ
forming basis of widely used trainer T-38 Talon ⓘ |
| relatedTo |
Northrop F-5 Freedom Fighter
NERFINISHED
ⓘ
Northrop T-38 Talon NERFINISHED ⓘ |
| startTime | late 1950s ⓘ |
| successorAircraft |
Northrop F-5A Freedom Fighter
NERFINISHED
ⓘ
Northrop T-38A Talon NERFINISHED ⓘ |
| timePeriod | Cold War ⓘ |
| wingConfiguration | low-mounted swept wing ⓘ |
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: Northrop N-156 project Description of subject: The Northrop N-156 project was a late-1950s lightweight jet fighter design program that led to the development of the F-5 Freedom Fighter and T-38 Talon.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.