YF-12C
E223688
The YF-12C was a cover designation used by NASA for a modified Lockheed A-12 reconnaissance aircraft, related to the SR-71 Blackbird program, during high-speed, high-altitude research flights.
All labels observed (1)
| Label | Occurrences |
|---|---|
| YF-12C canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1994800 — 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: YF-12C Context triple: [SR-71 Blackbird, NASADesignation, YF-12C]
-
A.
YF-23 Black Widow II
The YF-23 Black Widow II was an experimental stealth fighter prototype developed by Northrop/McDonnell Douglas for the U.S. Air Force’s Advanced Tactical Fighter program, competing against what became the F-22 Raptor.
-
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.
Northrop YF-17
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.
-
D.
Lockheed U-2
The Lockheed U-2 is a high-altitude American reconnaissance aircraft designed for intelligence gathering missions, particularly during the Cold War.
-
E.
McDonnell F-101 Voodoo
The McDonnell F-101 Voodoo is a supersonic jet fighter and reconnaissance aircraft developed for the United States Air Force during the Cold War.
- 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: YF-12C Target entity description: The YF-12C was a cover designation used by NASA for a modified Lockheed A-12 reconnaissance aircraft, related to the SR-71 Blackbird program, during high-speed, high-altitude research flights.
-
A.
YF-23 Black Widow II
The YF-23 Black Widow II was an experimental stealth fighter prototype developed by Northrop/McDonnell Douglas for the U.S. Air Force’s Advanced Tactical Fighter program, competing against what became the F-22 Raptor.
-
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.
Northrop YF-17
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.
-
D.
Lockheed U-2
The Lockheed U-2 is a high-altitude American reconnaissance aircraft designed for intelligence gathering missions, particularly during the Cold War.
-
E.
McDonnell F-101 Voodoo
The McDonnell F-101 Voodoo is a supersonic jet fighter and reconnaissance aircraft developed for the United States Air Force during the Cold War.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
experimental aircraft
ⓘ
high-altitude aircraft ⓘ high-speed aircraft ⓘ research aircraft ⓘ |
| aircraftType |
experimental derivative of A-12
ⓘ
jet-powered aircraft ⓘ supersonic aircraft ⓘ |
| airframeDerivedFrom | A-12 reconnaissance aircraft ⓘ |
| basedOn | Lockheed A-12 ⓘ |
| classifiedCoverDesignation | yes ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| coverDesignationFor | Lockheed A-12 ⓘ |
| designer | Clarence "Kelly" Johnson ⓘ |
| hasConfiguration |
tandem cockpit
ⓘ
twin-engine ⓘ |
| hasFeature |
area-ruled fuselage
ⓘ
chine forebody ⓘ delta-like wing planform ⓘ titanium structure ⓘ |
| manufacturer |
Lockheed Aircraft Company
ⓘ
surface form:
Lockheed Corporation
|
| operator | NASA ⓘ |
| partOfProgram |
SR-71 Blackbird
ⓘ
surface form:
Lockheed Blackbird program
NASA X-plane series ⓘ
surface form:
NASA high-speed research program
|
| propulsion | twin-engine jet ⓘ |
| relatedTo |
Lockheed A-12 program
ⓘ
surface form:
CIA A-12 reconnaissance program
SR-71 Blackbird ⓘ
surface form:
Lockheed SR-71 Blackbird
Lockheed YF-12 ⓘ |
| role |
research platform
ⓘ
testbed aircraft ⓘ |
| usedBy |
NASA Armstrong Flight Research Center
ⓘ
surface form:
NASA Flight Research Center
|
| usedDuring | Cold War ⓘ |
| usedFor |
aerodynamic research
ⓘ
aeroelasticity studies ⓘ data collection for future high-speed aircraft designs ⓘ evaluation of high Mach number flight dynamics ⓘ evaluation of high-altitude flight operations ⓘ flight envelope expansion ⓘ high-altitude research ⓘ high-speed research ⓘ inlet and engine control research ⓘ materials performance at high temperature ⓘ propulsion research ⓘ structural loads research ⓘ supersonic cruise research ⓘ thermal research ⓘ |
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: YF-12C Description of subject: The YF-12C was a cover designation used by NASA for a modified Lockheed A-12 reconnaissance aircraft, related to the SR-71 Blackbird program, during high-speed, high-altitude research flights.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.