Yak-1
E478389
The Yak-1 was a Soviet single-seat fighter aircraft of World War II, noted for its agility and major role in early Eastern Front air combat.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Yakovlev Yak-1 | 4 |
| Yak-1 canonical | 2 |
| Yakovlev Yak-1 fighter | 1 |
| Yakovlev Yak‑1 | 1 |
| Yak‑1 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4900031 — 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: Yak-1 Context triple: [Eastern Front air operations, aircraftUsedBySovietUnion, Yak-1]
-
A.
Yakovlev Yak-3
The Yakovlev Yak-3 was a highly maneuverable Soviet World War II fighter aircraft renowned for its excellent performance at low altitudes and effectiveness on the Eastern Front.
-
B.
Yakovlev Yak-9
The Yakovlev Yak-9 was a versatile Soviet World War II fighter aircraft widely used on the Eastern Front in roles ranging from air superiority to ground attack.
-
C.
Lavochkin La-5
The Lavochkin La-5 was a World War II Soviet single-seat fighter aircraft renowned for its powerful radial engine, wooden construction, and key role in countering the German Luftwaffe on the Eastern Front.
-
D.
Lavochkin La-7
The Lavochkin La-7 was a late-World War II Soviet single-seat fighter aircraft renowned for its excellent performance and service with top Soviet aces.
-
E.
Ilyushin Il-2
The Ilyushin Il-2 was a heavily armored Soviet ground-attack aircraft of World War II, produced in vast numbers and renowned for its crucial role in close air support on the Eastern Front.
- 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: Yak-1 Target entity description: The Yak-1 was a Soviet single-seat fighter aircraft of World War II, noted for its agility and major role in early Eastern Front air combat.
-
A.
Yakovlev Yak-3
The Yakovlev Yak-3 was a highly maneuverable Soviet World War II fighter aircraft renowned for its excellent performance at low altitudes and effectiveness on the Eastern Front.
-
B.
Yakovlev Yak-9
The Yakovlev Yak-9 was a versatile Soviet World War II fighter aircraft widely used on the Eastern Front in roles ranging from air superiority to ground attack.
-
C.
Lavochkin La-5
The Lavochkin La-5 was a World War II Soviet single-seat fighter aircraft renowned for its powerful radial engine, wooden construction, and key role in countering the German Luftwaffe on the Eastern Front.
-
D.
Lavochkin La-7
The Lavochkin La-7 was a late-World War II Soviet single-seat fighter aircraft renowned for its excellent performance and service with top Soviet aces.
-
E.
Ilyushin Il-2
The Ilyushin Il-2 was a heavily armored Soviet ground-attack aircraft of World War II, produced in vast numbers and renowned for its crucial role in close air support on the Eastern Front.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
World War II aircraft
ⓘ
fighter aircraft ⓘ single-seat fighter ⓘ |
| aircraftType | single-engine propeller-driven aircraft ⓘ |
| airForceRole | frontline fighter ⓘ |
| airframeMaterial | wood-and-metal mixed structure ⓘ |
| armament |
20 mm cannon
ⓘ
7.62 mm machine guns ⓘ |
| category |
Soviet World War II fighter aircraft
ⓘ
Yakovlev aircraft ⓘ
linked to:
Yakovlev Yak fighter family
|
| configuration | single-seat ⓘ |
| countryOfOrigin | Soviet Union ⓘ |
| crew | 1 ⓘ |
| designer | Alexander Yakovlev ⓘ |
| developedFrom | I-26 prototype ⓘ |
| engineModel |
Klimov M-105
ⓘ
linked to:
Klimov VK‑105PF‑2
|
| engineType | liquid-cooled V-12 piston engine ⓘ |
| enteredService | 1941 ⓘ |
| era | 1940s ⓘ |
| firstFlight | 1940 ⓘ |
| fuselageConstruction | mixed construction ⓘ |
| introduced | 1940 ⓘ |
| manufacturer | Yakovlev Design Bureau ⓘ |
| nationality | Soviet ⓘ |
| notableCharacteristic |
good maneuverability at low and medium altitudes
ⓘ
high agility ⓘ important role in early Eastern Front air combat ⓘ |
| numberOfEngines | 1 ⓘ |
| operatorType | military ⓘ |
| primaryUser | Soviet Air Forces ⓘ |
| productionPeriod |
World War II era
ⓘ
linked to:
World War II
|
| propulsion | propeller ⓘ |
| role | fighter ⓘ |
| serviceEntryContext | early stages of the German-Soviet war ⓘ |
| successor |
Yak-3
ⓘ
linked to:
Yakovlev Yak-3
Yak-7 ⓘ
linked to:
Yakovlev Yak-7
Yak-9 ⓘ
linked to:
Yakovlev Yak-9
|
| theaterOfOperation | Eastern Front ⓘ |
| undercarriage | retractable conventional landing gear ⓘ |
| usedAgainst | Luftwaffe ⓘ |
| usedBy |
Free French Air Forces in the USSR
ⓘ
Polish Air Forces in the USSR ⓘ
linked to:
Polish Armed Forces in the East
Soviet Air Forces ⓘ |
| usedFor |
air superiority missions
ⓘ
escort missions ⓘ interception ⓘ |
| usedInConflict |
Eastern Front of World War II
ⓘ
World War II ⓘ |
| wingConfiguration | low-wing monoplane ⓘ |
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: Yak-1 Description of subject: The Yak-1 was a Soviet single-seat fighter aircraft of World War II, noted for its agility and major role in early Eastern Front air combat.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Soviet Polikarpov I-16
linked to: Yak-1
linked to: Yak-1
linked to: Yak-1
linked to: Yak-1
linked to: Yak-1
linked to: Yak-1