Northrop YF-17
E204837
The Northrop YF-17 was a lightweight prototype fighter aircraft developed in the 1970s that served as the design basis for the later F/A-18 Hornet.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Northrop YF-17 canonical | 2 |
| YF-17 | 1 |
| YF-17 Cobra | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1816958 — 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 YF-17 Context triple: [F/A-18 Hornet, developedFrom, Northrop YF-17]
-
A.
Grumman X-29
The Grumman X-29 was an experimental U.S. research aircraft notable for its forward-swept wings, advanced composite materials, and fly-by-wire control system used to explore extreme aerodynamic concepts.
-
B.
Rockwell-MBB X-31
The Rockwell-MBB X-31 was an experimental jet fighter demonstrator designed to test advanced thrust vectoring and high-angle-of-attack maneuverability technologies.
-
C.
F-5 Freedom Fighter
The F-5 Freedom Fighter is a lightweight supersonic fighter aircraft developed by Northrop in the United States and widely exported for use by numerous air forces around the world.
-
D.
Douglas X-3 Stiletto
The Douglas X-3 Stiletto was a slender, jet-powered experimental research aircraft of the early 1950s designed to investigate sustained supersonic flight and advanced aerodynamic concepts for future high-speed aircraft.
-
E.
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.
- 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 YF-17 Target entity description: The Northrop YF-17 was a lightweight prototype fighter aircraft developed in the 1970s that served as the design basis for the later F/A-18 Hornet.
-
A.
Grumman X-29
The Grumman X-29 was an experimental U.S. research aircraft notable for its forward-swept wings, advanced composite materials, and fly-by-wire control system used to explore extreme aerodynamic concepts.
-
B.
Rockwell-MBB X-31
The Rockwell-MBB X-31 was an experimental jet fighter demonstrator designed to test advanced thrust vectoring and high-angle-of-attack maneuverability technologies.
-
C.
F-5 Freedom Fighter
The F-5 Freedom Fighter is a lightweight supersonic fighter aircraft developed by Northrop in the United States and widely exported for use by numerous air forces around the world.
-
D.
Douglas X-3 Stiletto
The Douglas X-3 Stiletto was a slender, jet-powered experimental research aircraft of the early 1950s designed to investigate sustained supersonic flight and advanced aerodynamic concepts for future high-speed aircraft.
-
E.
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.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
lightweight fighter aircraft
ⓘ
prototype fighter aircraft ⓘ twin‑engine jet aircraft ⓘ |
| airframeMaterial |
aluminum alloy
ⓘ
composite materials ⓘ |
| airIntakeType | side‑mounted intakes ⓘ |
| armamentCapability |
air‑to‑air missiles
ⓘ
cannon ⓘ |
| category |
United States fighter aircraft of the Cold War
ⓘ
experimental military aircraft ⓘ |
| cockpitType | single‑seat ⓘ |
| competedWith |
F-16 Fighting Falcon
ⓘ
surface form:
General Dynamics YF-16
|
| controlSystem | hydromechanical flight controls ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| crew | 1 ⓘ |
| derivedInto | navalized design for the U.S. Navy ⓘ |
| designBasisFor |
Boeing F/A-18E/F Super Hornet
ⓘ
F/A-18 Hornet ⓘ
surface form:
McDonnell Douglas F/A-18 Hornet
|
| designedFor |
high maneuverability
ⓘ
lightweight, low‑cost fighter concept ⓘ |
| developedInDecade | 1970s ⓘ |
| engineConfiguration | twin‑engine ⓘ |
| engineType | turbofan ⓘ |
| firstFlightDate | 1974-06-09 ⓘ |
| intendedOperator | United States Air Force ⓘ |
| landingGearType | tricycle landing gear ⓘ |
| laterDevelopedBy |
McDonnell Douglas
ⓘ
Northrop ⓘ
surface form:
Northrop (as partner on F/A-18)
|
| manufacturer |
Northrop
ⓘ
surface form:
Northrop Corporation
|
| maxSpeedClass | supersonic ⓘ |
| nickname | Cobra ⓘ |
| numberBuilt | 2 ⓘ |
| powerplant | 2 × General Electric YJ101 turbofan engines ⓘ |
| primaryUse |
evaluation aircraft
ⓘ
technology demonstrator ⓘ |
| program | Lightweight Fighter program ⓘ |
| programOutcome | lost competition to YF-16 ⓘ |
| programType | prototype evaluation program ⓘ |
| role |
air superiority fighter
ⓘ
fighter ⓘ |
| status |
not taken into production
ⓘ
prototype only ⓘ |
| successor | F/A-18 Hornet ⓘ |
| tailConfiguration | twin vertical stabilizers ⓘ |
| wingConfiguration | shoulder‑mounted wing ⓘ |
| wingType | leading‑edge extensions ⓘ |
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 YF-17 Description of subject: The Northrop YF-17 was a lightweight prototype fighter aircraft developed in the 1970s that served as the design basis for the later F/A-18 Hornet.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
YF-17 Cobra
this entity surface form:
YF-17