Lockheed PV-2 Harpoon
E264018
World War II military aircraft
anti-submarine warfare aircraft
maritime patrol aircraft
patrol bomber
The Lockheed PV-2 Harpoon was a World War II-era American maritime patrol and anti-submarine bomber used primarily by the U.S. Navy.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Lockheed PV-1 Ventura | 1 |
| Lockheed PV-2 Harpoon canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2412828 — 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 PV-2 Harpoon Context triple: [Lockheed P-2 Neptune, developedFrom, Lockheed PV-2 Harpoon]
-
A.
Douglas TBD Devastator
The Douglas TBD Devastator was an American World War II-era torpedo bomber used by the U.S. Navy, notably in the early Pacific battles where its obsolescence and heavy losses highlighted the need for more advanced carrier-based aircraft.
-
B.
Grumman TBF Avenger
The Grumman TBF Avenger was a World War II-era American torpedo bomber renowned for its rugged design, heavy payload, and extensive service with the U.S. Navy in the Pacific Theater.
-
C.
Douglas SBD Dauntless
The Douglas SBD Dauntless was a U.S. Navy World War II carrier-based dive bomber best known for its decisive role in sinking Japanese carriers at the Battle of Midway.
-
D.
de Havilland Sea Hornet
The de Havilland Sea Hornet was a British twin-engined, carrier-capable fighter aircraft developed in the 1940s as a high-performance naval adaptation of the Hornet.
-
E.
North American B-25B Mitchell
The North American B-25B Mitchell is a twin‑engine medium bomber used by the United States during World War II, most famously in the 1942 Doolittle Raid on Japan.
- 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 PV-2 Harpoon Target entity description: The Lockheed PV-2 Harpoon was a World War II-era American maritime patrol and anti-submarine bomber used primarily by the U.S. Navy.
-
A.
Douglas TBD Devastator
The Douglas TBD Devastator was an American World War II-era torpedo bomber used by the U.S. Navy, notably in the early Pacific battles where its obsolescence and heavy losses highlighted the need for more advanced carrier-based aircraft.
-
B.
Grumman TBF Avenger
The Grumman TBF Avenger was a World War II-era American torpedo bomber renowned for its rugged design, heavy payload, and extensive service with the U.S. Navy in the Pacific Theater.
-
C.
Douglas SBD Dauntless
The Douglas SBD Dauntless was a U.S. Navy World War II carrier-based dive bomber best known for its decisive role in sinking Japanese carriers at the Battle of Midway.
-
D.
de Havilland Sea Hornet
The de Havilland Sea Hornet was a British twin-engined, carrier-capable fighter aircraft developed in the 1940s as a high-performance naval adaptation of the Hornet.
-
E.
North American B-25B Mitchell
The North American B-25B Mitchell is a twin‑engine medium bomber used by the United States during World War II, most famously in the 1942 Doolittle Raid on Japan.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
World War II military aircraft
ⓘ
anti-submarine warfare aircraft ⓘ maritime patrol aircraft ⓘ patrol bomber ⓘ |
| aircraftCategory | land-based naval patrol aircraft ⓘ |
| armament |
bombs
ⓘ
depth charges ⓘ machine guns ⓘ rockets ⓘ |
| configuration | twin-engine monoplane ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| crew | 5 ⓘ |
| developedFrom |
Lockheed PV-2 Harpoon
self-linksurface differs
ⓘ
surface form:
Lockheed PV-1 Ventura
|
| engineType | piston radial engine ⓘ |
| enteredServiceWith | United States Navy ⓘ |
| era | 1940s ⓘ |
| firstFlight | 1943 ⓘ |
| fuselageMaterial | metal ⓘ |
| inServiceDuring | World War II ⓘ |
| introduced | 1944 ⓘ |
| landingGear | retractable tailwheel landing gear ⓘ |
| manufacturer |
Lockheed Aircraft Company
ⓘ
surface form:
Lockheed
|
| maximumSpeed |
approximately 282 mph
ⓘ
approximately 454 km/h ⓘ |
| notableFeature |
greater bombload than PV-1 Ventura
ⓘ
increased wing area compared to PV-1 Ventura ⓘ |
| numberBuilt | about 500 ⓘ |
| operatorBranch |
U.S. Navy anti-submarine squadrons
ⓘ
surface form:
U.S. Navy Patrol Squadrons
|
| powerplant | 2 × Pratt & Whitney R-2800 Double Wasp radial engines ⓘ |
| primaryMission |
anti-submarine warfare
ⓘ
maritime patrol ⓘ |
| range |
approximately 2,000 miles
ⓘ
approximately 3,200 km ⓘ |
| role |
anti-submarine bomber
ⓘ
maritime patrol bomber ⓘ |
| secondaryMission | ground attack ⓘ |
| someExamplesPreservedAs | museum aircraft ⓘ |
| status | retired ⓘ |
| successorTo | Lockheed PV-1 Ventura in U.S. Navy patrol service ⓘ |
| tailConfiguration | conventional tail ⓘ |
| usedBy |
Brazilian Air Force
ⓘ
Japan Maritime Self-Defense Force ⓘ
surface form:
Japanese Maritime Self-Defense Force
Netherlands Naval Aviation Service ⓘ Portuguese Air Force ⓘ Royal Canadian Air Force ⓘ United States Navy ⓘ |
| usedInTheater |
Battle of the Atlantic
ⓘ
surface form:
Atlantic Theater of World War II
Pacific Theater of Operations ⓘ
surface form:
Pacific Theater of World War II
|
| wingConfiguration | low-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: Lockheed PV-2 Harpoon Description of subject: The Lockheed PV-2 Harpoon was a World War II-era American maritime patrol and anti-submarine bomber used primarily by the U.S. Navy.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Lockheed PV-1 Ventura