Handley Page O/400
E21134
The Handley Page O/400 was a British World War I heavy bomber aircraft, notable as one of the first strategic bombers used in large-scale night bombing operations.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Handley Page O/400 canonical | 12 |
| Handley Page O/400 (U.S.-built variants) | 1 |
| Handley Page O/400 bomber | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T111947 — 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: Handley Page O/400 Context triple: [Royal Naval Air Service, notableAircraft, Handley Page O/400]
-
A.
Handley Page O/100
The Handley Page O/100 was a British World War I heavy bomber, among the first strategic bombers used for long-range night bombing missions.
-
B.
Airco DH.4
The Airco DH.4 was a British World War I two-seat day bomber and reconnaissance aircraft widely used by both the Royal Flying Corps and later the Royal Air Force.
-
C.
Hawker Hurricane
The Hawker Hurricane was a British single-seat fighter aircraft of World War II, renowned for its crucial role in achieving air superiority during the Battle of Britain.
-
D.
Supermarine Spiteful
The Supermarine Spiteful was a late-World War II British fighter aircraft developed as an advanced, high-performance evolution of the Spitfire with a new laminar-flow wing and improved speed.
-
E.
Sopwith Pup
The Sopwith Pup was a British single-seat biplane fighter aircraft of World War I, renowned for its excellent maneuverability and service with both the Royal Naval Air Service and the Royal Flying Corps.
- 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: Handley Page O/400 Target entity description: The Handley Page O/400 was a British World War I heavy bomber aircraft, notable as one of the first strategic bombers used in large-scale night bombing operations.
-
A.
Handley Page O/100
The Handley Page O/100 was a British World War I heavy bomber, among the first strategic bombers used for long-range night bombing missions.
-
B.
Airco DH.4
The Airco DH.4 was a British World War I two-seat day bomber and reconnaissance aircraft widely used by both the Royal Flying Corps and later the Royal Air Force.
-
C.
Hawker Hurricane
The Hawker Hurricane was a British single-seat fighter aircraft of World War II, renowned for its crucial role in achieving air superiority during the Battle of Britain.
-
D.
Supermarine Spiteful
The Supermarine Spiteful was a late-World War II British fighter aircraft developed as an advanced, high-performance evolution of the Spitfire with a new laminar-flow wing and improved speed.
-
E.
Sopwith Pup
The Sopwith Pup was a British single-seat biplane fighter aircraft of World War I, renowned for its excellent maneuverability and service with both the Royal Naval Air Service and the Royal Flying Corps.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
biplane
ⓘ
heavy bomber aircraft ⓘ military aircraft ⓘ |
| armament | Lewis machine guns ⓘ |
| category | World War I British bomber aircraft ⓘ |
| configuration | twin-engine ⓘ |
| construction | wood-and-fabric ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| crew | 4 ⓘ |
| designedAs | improved version of Handley Page O/100 ⓘ |
| enginePlacement | tractor nacelles between wings ⓘ |
| enteredService | 1918 ⓘ |
| firstFlightDate | 1917 ⓘ |
| fuselageType | slab-sided ⓘ |
| height | 22 ft 9 in ⓘ |
| introducedFeature |
internal bomb racks
ⓘ
revised fuel system ⓘ |
| length | 62 ft 10 in ⓘ |
| manufacturer | Handley Page Limited ⓘ |
| maximumBombLoad |
2000 lb
ⓘ
907 kg ⓘ |
| maximumSpeed | 97 mph ⓘ |
| notableFor |
large-scale night bombing operations
ⓘ
one of the first strategic bombers ⓘ |
| numberOfEngines | 2 ⓘ |
| operatedByUnit |
Independent Air Force
ⓘ
No. 207 Squadron RAF ⓘ |
| operationalUse |
long-range bombing of German industrial targets
ⓘ
night raids on railway junctions ⓘ |
| powerplant | Rolls-Royce Eagle VIII V-12 piston engine ⓘ |
| predecessor | Handley Page O/100 ⓘ |
| primaryUser | Royal Air Force ⓘ |
| range | 700 mi ⓘ |
| retiredFromService | early 1920s ⓘ |
| role |
night bomber
ⓘ
strategic bomber ⓘ |
| serviceCeiling | 8000 ft ⓘ |
| status | retired ⓘ |
| successor | Handley Page V/1500 ⓘ |
| tailConfiguration | twin-fin tailplane ⓘ |
| usedAs | transport aircraft after World War I ⓘ |
| usedBy |
Royal Air Force
ⓘ
Royal Flying Corps ⓘ United States Army Air Service ⓘ |
| usedFor | mail and passenger services postwar ⓘ |
| usedInConflict | World War I ⓘ |
| wingConfiguration | two-bay biplane ⓘ |
| wingspan | 100 ft ⓘ |
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: Handley Page O/400 Description of subject: The Handley Page O/400 was a British World War I heavy bomber aircraft, notable as one of the first strategic bombers used in large-scale night bombing operations.
Referenced by (14)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Handley Page O/400 (U.S.-built variants)
this entity surface form:
Handley Page O/400 bomber
subject surface form:
Rolls-Royce Eagle VIII