Model 281 Proteus
E90347
experimental aircraft
high-altitude long-endurance aircraft
twin-boom aircraft
twin-turbofan aircraft
Model 281 Proteus is a high-altitude, long-endurance experimental aircraft developed by Scaled Composites for telecommunications, reconnaissance, and atmospheric research missions.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Model 281 Proteus canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T755847 — 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: Model 281 Proteus Context triple: [Scaled Composites, designed, Model 281 Proteus]
-
A.
CP-140 Aurora
The CP-140 Aurora is a Canadian long-range maritime patrol and anti-submarine warfare aircraft based on the Lockheed P-3 Orion airframe and used primarily for surveillance and reconnaissance missions.
-
B.
Pella ProLine
Pella ProLine is a product line of mid-range, wood-clad windows and doors manufactured by Pella Corporation, known for balancing performance, aesthetics, and affordability.
-
C.
Titan IIIE
Titan IIIE was a U.S. expendable launch vehicle variant of the Titan III family, equipped with a Centaur upper stage and used in the 1970s to send deep-space probes such as Voyager 1 on interplanetary trajectories.
-
D.
M-28
M-28 is a major east–west state highway running across Michigan’s Upper Peninsula, connecting numerous communities along the southern shore of Lake Superior.
-
E.
Proteus
Proteus is the nickname of Charles Proteus Steinmetz, a pioneering German-American electrical engineer and mathematician renowned for his foundational work in alternating current (AC) power systems.
- 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: Model 281 Proteus Target entity description: Model 281 Proteus is a high-altitude, long-endurance experimental aircraft developed by Scaled Composites for telecommunications, reconnaissance, and atmospheric research missions.
-
A.
CP-140 Aurora
The CP-140 Aurora is a Canadian long-range maritime patrol and anti-submarine warfare aircraft based on the Lockheed P-3 Orion airframe and used primarily for surveillance and reconnaissance missions.
-
B.
Pella ProLine
Pella ProLine is a product line of mid-range, wood-clad windows and doors manufactured by Pella Corporation, known for balancing performance, aesthetics, and affordability.
-
C.
Titan IIIE
Titan IIIE was a U.S. expendable launch vehicle variant of the Titan III family, equipped with a Centaur upper stage and used in the 1970s to send deep-space probes such as Voyager 1 on interplanetary trajectories.
-
D.
M-28
M-28 is a major east–west state highway running across Michigan’s Upper Peninsula, connecting numerous communities along the southern shore of Lake Superior.
-
E.
Proteus
Proteus is the nickname of Charles Proteus Steinmetz, a pioneering German-American electrical engineer and mathematician renowned for his foundational work in alternating current (AC) power systems.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
experimental aircraft
ⓘ
high-altitude long-endurance aircraft ⓘ twin-boom aircraft ⓘ twin-turbofan aircraft ⓘ |
| airframeMaterial | composite materials ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| crew |
1 pilot
ⓘ
1 systems operator ⓘ 2 ⓘ |
| designedFor |
high-altitude operations
ⓘ
long-duration missions ⓘ optionally unmanned operation potential ⓘ |
| designer |
Burt Rutan
ⓘ
Scaled Composites ⓘ |
| developedIn | late 1990s ⓘ |
| endurance |
long-endurance
ⓘ
over 14 hours ⓘ |
| engineConfiguration | twin-engine ⓘ |
| engineModel | Williams FJ44-2 turbofan ⓘ |
| engineType | turbofan ⓘ |
| firstFlight | 1998-07-26 ⓘ |
| fuselageConfiguration |
central pod fuselage
ⓘ
twin-boom ⓘ |
| landingGear | retractable tricycle landing gear ⓘ |
| manufacturer | Scaled Composites ⓘ |
| maximumAltitude | over 60,000 ft ⓘ |
| maximumTakeoffWeight | approximately 11,000 kg ⓘ |
| mission |
aeronautical research
ⓘ
environmental monitoring ⓘ sensor testing ⓘ surveillance ⓘ telecommunications relay ⓘ |
| numberBuilt | 1 ⓘ |
| operator | Scaled Composites ⓘ |
| primaryUser | Scaled Composites ⓘ |
| propulsion | jet-powered ⓘ |
| purpose | to serve as a multi-mission high-altitude platform ⓘ |
| registration | N281PR ⓘ |
| role |
atmospheric research aircraft
ⓘ
high-altitude testbed ⓘ reconnaissance aircraft ⓘ telecommunications platform ⓘ |
| status |
active testbed
ⓘ
experimental ⓘ |
| tailConfiguration | twin-tail ⓘ |
| wingConfiguration |
high-aspect-ratio wing
ⓘ
variable-span wing with removable tips ⓘ |
| wingspan | approximately 77 m ⓘ |
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: Model 281 Proteus Description of subject: Model 281 Proteus is a high-altitude, long-endurance experimental aircraft developed by Scaled Composites for telecommunications, reconnaissance, and atmospheric research missions.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.