USAF serial 49-2892
E102293
USAF serial 49-2892 is the sole Douglas X-3 Stiletto experimental jet aircraft built to explore sustained supersonic flight and advanced aerodynamic design in the early Cold War era.
All labels observed (1)
| Label | Occurrences |
|---|---|
| USAF serial 49-2892 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T871277 — 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: USAF serial 49-2892 Context triple: [Douglas X-3 Stiletto, registrationOrSerial, USAF serial 49-2892]
-
A.
Wright J-5C Whirlwind
The Wright J-5C Whirlwind is a nine-cylinder, air-cooled radial aircraft engine renowned for its reliability and use in pioneering long-distance flights of the late 1920s.
-
B.
Republic F-84 Thunderjet
The Republic F-84 Thunderjet is an American turbojet-powered fighter-bomber developed in the late 1940s that saw extensive service during the Korean War.
-
C.
Republic P-47 Thunderbolt
The Republic P-47 Thunderbolt was a rugged, heavily armed American World War II fighter-bomber renowned for its durability, high-altitude performance, and effective ground-attack capabilities.
-
D.
M-346 trainer aircraft
The M-346 is an advanced jet trainer and light attack aircraft designed for lead-in fighter training and tactical roles, widely used by several air forces worldwide.
-
E.
Fairchild C-119 Flying Boxcar
The Fairchild C-119 Flying Boxcar is a twin-boom, twin-engine military transport aircraft used extensively by the U.S. Air Force and other operators from the late 1940s through the 1960s for cargo, troop, and paratroop operations.
- 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: USAF serial 49-2892 Target entity description: USAF serial 49-2892 is the sole Douglas X-3 Stiletto experimental jet aircraft built to explore sustained supersonic flight and advanced aerodynamic design in the early Cold War era.
-
A.
Wright J-5C Whirlwind
The Wright J-5C Whirlwind is a nine-cylinder, air-cooled radial aircraft engine renowned for its reliability and use in pioneering long-distance flights of the late 1920s.
-
B.
Republic F-84 Thunderjet
The Republic F-84 Thunderjet is an American turbojet-powered fighter-bomber developed in the late 1940s that saw extensive service during the Korean War.
-
C.
Republic P-47 Thunderbolt
The Republic P-47 Thunderbolt was a rugged, heavily armed American World War II fighter-bomber renowned for its durability, high-altitude performance, and effective ground-attack capabilities.
-
D.
M-346 trainer aircraft
The M-346 is an advanced jet trainer and light attack aircraft designed for lead-in fighter training and tactical roles, widely used by several air forces worldwide.
-
E.
Fairchild C-119 Flying Boxcar
The Fairchild C-119 Flying Boxcar is a twin-boom, twin-engine military transport aircraft used extensively by the U.S. Air Force and other operators from the late 1940s through the 1960s for cargo, troop, and paratroop operations.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Douglas X-3 Stiletto
ⓘ
experimental jet aircraft ⓘ research aircraft ⓘ |
| aircraftCategory |
experimental military aircraft
ⓘ
jet-powered research aircraft ⓘ |
| airframeConfiguration |
slender fuselage
ⓘ
small trapezoidal wings ⓘ tricycle landing gear ⓘ twin-engine layout ⓘ |
| airIntakeType | side-mounted intakes ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| designedFor |
advanced aerodynamic design evaluation
ⓘ
high wing loading investigation ⓘ high-speed stability and control research ⓘ slender fuselage and small wing planform testing ⓘ supersonic inlet and engine installation research ⓘ sustained supersonic flight research ⓘ |
| era | early Cold War ⓘ |
| is | sole Douglas X-3 Stiletto built ⓘ |
| manufacturer | Douglas Aircraft Company ⓘ |
| notableCharacteristic |
long, slender fuselage
ⓘ
needle-like nose ⓘ small low-aspect-ratio wings ⓘ very high wing loading ⓘ |
| numberBuilt | 1 ⓘ |
| operator |
National Advisory Committee for Aeronautics
ⓘ
linked to:
NACA
United States Air Force ⓘ |
| powerplantType | turbojet ⓘ |
| primaryMission |
aerodynamic research
ⓘ
supersonic performance evaluation ⓘ |
| programAffiliation |
United States X-plane series
ⓘ
linked to:
X-Plane experimental aircraft programs
|
| programType | X-plane program ⓘ |
| propulsion | twin turbojet engines ⓘ |
| researchFocus |
aeroelastic behavior at high speed
ⓘ
supersonic handling qualities ⓘ takeoff and landing performance with high wing loading ⓘ thermal and structural effects of high-speed flight ⓘ |
| role |
experimental technology demonstrator
ⓘ
supersonic research aircraft ⓘ |
| status | retired ⓘ |
| tailConfiguration | conventional tail ⓘ |
| usedBy |
NACA test pilots
ⓘ
test pilots of the United States Air Force ⓘ |
| usedFor |
engine installation and inlet research
ⓘ
evaluation of materials and construction techniques for high-speed flight ⓘ stability and control research at transonic and supersonic speeds ⓘ structural loads investigation at high speeds ⓘ |
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: USAF serial 49-2892 Description of subject: USAF serial 49-2892 is the sole Douglas X-3 Stiletto experimental jet aircraft built to explore sustained supersonic flight and advanced aerodynamic design in the early Cold War era.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.