Rockwell-MBB X-31
E20823
The Rockwell-MBB X-31 was an experimental jet fighter demonstrator designed to test advanced thrust vectoring and high-angle-of-attack maneuverability technologies.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Rockwell-MBB X-31 canonical | 2 |
| Enhanced Fighter Maneuverability program | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T145992 — 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: Rockwell-MBB X-31 Context triple: [X-Plane experimental aircraft programs, notableAircraft, Rockwell-MBB X-31]
-
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.
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.
-
C.
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.
-
D.
Bell X-5
The Bell X-5 was an early U.S. experimental jet that pioneered variable-sweep wing technology, helping to shape the design of later high-performance military aircraft.
-
E.
Bell X-2
The Bell X-2 was a rocket-powered experimental research aircraft developed in the 1950s to investigate flight characteristics at extremely high speeds and altitudes, contributing crucial data to early supersonic and space-era aeronautics.
- 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: Rockwell-MBB X-31 Target entity description: The Rockwell-MBB X-31 was an experimental jet fighter demonstrator designed to test advanced thrust vectoring and high-angle-of-attack maneuverability technologies.
-
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.
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.
-
C.
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.
-
D.
Bell X-5
The Bell X-5 was an early U.S. experimental jet that pioneered variable-sweep wing technology, helping to shape the design of later high-performance military aircraft.
-
E.
Bell X-2
The Bell X-2 was a rocket-powered experimental research aircraft developed in the 1950s to investigate flight characteristics at extremely high speeds and altitudes, contributing crucial data to early supersonic and space-era aeronautics.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
X-plane
ⓘ
experimental aircraft ⓘ jet fighter demonstrator ⓘ |
| armament | none (unarmed demonstrator) ⓘ |
| avionicsFeatures |
digital flight control laws for post-stall maneuvering
ⓘ
fly-by-wire flight control system ⓘ |
| configuration |
canard-delta
ⓘ
single-engine ⓘ single-seat ⓘ |
| controlSurfaces |
canards
ⓘ
thrust vectoring paddles ⓘ |
| countryOfOrigin |
Germany
ⓘ
United States of America ⓘ
surface form:
United States
|
| crew | 1 ⓘ |
| designedFor |
enhanced agility
ⓘ
high angle of attack flight ⓘ post-stall maneuvering ⓘ |
| engineCount | 1 ⓘ |
| engineModel |
General Electric F404
ⓘ
surface form:
General Electric F404-GE-400
|
| firstCrashCause | pitot-static system icing leading to loss of control ⓘ |
| firstCrashDate | 1995-01-19 ⓘ |
| firstFlightDate | 1990-10-11 ⓘ |
| landingGear | tricycle retractable ⓘ |
| manufacturer |
Messerschmitt-Bölkow-Blohm
ⓘ
Rockwell International ⓘ |
| maxAngleOfAttackTested | approximately 70 degrees ⓘ |
| maxSpeedClass | around Mach 1.2 ⓘ |
| notableManeuver | Herbst maneuver ⓘ |
| numberBuilt | 2 ⓘ |
| operator |
German test organizations
ⓘ
NASA ⓘ United States Navy ⓘ |
| powerplantThrustClass | approximately 16,000 lbf with afterburner ⓘ |
| primaryRole |
high-angle-of-attack maneuverability demonstrator
ⓘ
technology demonstrator ⓘ thrust vectoring testbed ⓘ |
| programName |
Rockwell-MBB X-31
self-linksurface differs
ⓘ
surface form:
Enhanced Fighter Maneuverability program
|
| programPartners |
MTU Aero Engines
ⓘ
surface form:
Deutsche Aerospace
Federal Ministry of Defence (Germany) ⓘ
surface form:
German Federal Ministry of Defence
United States Air Force ⓘ United States Navy ⓘ |
| propulsionType | turbofan ⓘ |
| status | retired ⓘ |
| survivingAircraftCount | 1 ⓘ |
| survivingAircraftLocation |
Deutsches Museum
ⓘ
surface form:
Deutsches Museum Flugwerft Schleissheim
|
| testLocation |
Edwards Air Force Base
ⓘ
NASA Armstrong Flight Research Center ⓘ
surface form:
NASA Dryden Flight Research Center
Naval Air Station Patuxent River ⓘ |
| thrustVectoring | yes ⓘ |
| thrustVectoringMethod | movable exhaust paddles ⓘ |
| wingType | delta 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: Rockwell-MBB X-31 Description of subject: The Rockwell-MBB X-31 was an experimental jet fighter demonstrator designed to test advanced thrust vectoring and high-angle-of-attack maneuverability technologies.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Enhanced Fighter Maneuverability program