Lockheed Martin X-27 (concept)
E530956
The Lockheed Martin X-27 was a conceptual U.S. experimental aircraft design study, reportedly exploring high-performance fighter or interceptor capabilities that never progressed to a flying prototype.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Lockheed Martin X-27 (concept) canonical | 1 |
| Lockheed X-27 (concept) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5572108 — 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: Lockheed Martin X-27 (concept) Context triple: [Lockheed Martin X-series, hasPart, Lockheed Martin X-27 (concept)]
-
A.
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.
-
B.
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.
-
C.
Boeing X-40A
The Boeing X-40A is an unmanned, subscale technology demonstrator that validated key autonomous landing and reentry technologies later used in the U.S. Air Force’s X-37 spaceplane program.
-
D.
Boeing X-36
The Boeing X-36 is an experimental unmanned tailless fighter aircraft demonstrator designed to test advanced agility and stealth technologies.
-
E.
Lockheed Martin X-56
The Lockheed Martin X-56 is an experimental unmanned research aircraft designed to test flexible, lightweight wings and active flutter suppression technologies for future high-efficiency aircraft.
- 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: Lockheed Martin X-27 (concept) Target entity description: The Lockheed Martin X-27 was a conceptual U.S. experimental aircraft design study, reportedly exploring high-performance fighter or interceptor capabilities that never progressed to a flying prototype.
-
A.
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.
-
B.
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.
-
C.
Boeing X-40A
The Boeing X-40A is an unmanned, subscale technology demonstrator that validated key autonomous landing and reentry technologies later used in the U.S. Air Force’s X-37 spaceplane program.
-
D.
Boeing X-36
The Boeing X-36 is an experimental unmanned tailless fighter aircraft demonstrator designed to test advanced agility and stealth technologies.
-
E.
Lockheed Martin X-56
The Lockheed Martin X-56 is an experimental unmanned research aircraft designed to test flexible, lightweight wings and active flutter suppression technologies for future high-efficiency aircraft.
- F. None of above. chosen
Statements (27)
| Predicate | Object |
|---|---|
| instanceOf |
conceptual aircraft design
ⓘ
experimental aircraft design study ⓘ unbuilt aircraft project ⓘ |
| aircraftRole |
fighter
ⓘ
interceptor ⓘ |
| aircraftType | jet-powered military aircraft (proposed) ⓘ |
| associatedWithDomain |
aerospace engineering
ⓘ
military aviation ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| designationNumber | 27 ⓘ |
| developedBy | Lockheed Martin ⓘ |
| hasAlternativeName |
Lockheed X-27 (concept)
ⓘ
linked to:
Lockheed Martin X-27 (concept)
|
| hasDesignationPrefix | X ⓘ |
| hasNoFirstFlight | true ⓘ |
| intendedPerformance | high-performance ⓘ |
| isConceptualOnly | true ⓘ |
| isExperimental | true ⓘ |
| isPartOf | U.S. experimental aircraft concepts ⓘ |
| isProductionAircraft | false ⓘ |
| isPrototypeBuilt | false ⓘ |
| manufacturer | Lockheed Martin ⓘ |
| neverEnteredService | true ⓘ |
| operator |
United States Air Force (intended, not realized)
ⓘ
linked to:
United States Air Force
|
| programPhase | design study only ⓘ |
| status |
never built
ⓘ
no flying prototype ⓘ |
| usedFor | technology exploration (proposed) ⓘ |
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: Lockheed Martin X-27 (concept) Description of subject: The Lockheed Martin X-27 was a conceptual U.S. experimental aircraft design study, reportedly exploring high-performance fighter or interceptor capabilities that never progressed to a flying prototype.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Lockheed Martin X-27 (concept)
linked to: Lockheed Martin X-27 (concept)