Yakovlev Yak-9
E352183
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.
All labels observed (9)
| Label | Occurrences |
|---|---|
| Yakovlev Yak-9 canonical | 4 |
| Yak-9D | 1 |
| Yak-9M | 1 |
| Yak-9T | 1 |
| Yak-9U | 1 |
| Yakovlev Yak-9 (late variants) | 1 |
| Yakovlev Yak-9U | 1 |
| Yakovlev Yak‑9 | 1 |
| Yak‑9 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3327545 — 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: Yakovlev Yak-9 Context triple: [Yakovlev Yak-3, relatedAircraft, Yakovlev Yak-9]
-
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.
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.
-
C.
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.
-
D.
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.
-
E.
Petlyakov Pe-8
The Petlyakov Pe-8 was a Soviet four‑engined long‑range heavy bomber used during World War II for strategic bombing and special missions.
- 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: Yakovlev Yak-9 Target entity description: 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.
-
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.
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.
-
C.
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.
-
D.
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.
-
E.
Petlyakov Pe-8
The Petlyakov Pe-8 was a Soviet four‑engined long‑range heavy bomber used during World War II for strategic bombing and special missions.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
World War II aircraft
ⓘ
fighter aircraft ⓘ single‑engine aircraft ⓘ single‑seat aircraft ⓘ |
| aircraftCategory | propeller‑driven fighter ⓘ |
| armament |
cannon
ⓘ
machine guns ⓘ |
| conflict | World War II ⓘ |
| countryOfOrigin | Soviet Union ⓘ |
| crew | 1 ⓘ |
| designer | Alexander Yakovlev ⓘ |
| developedFrom | Yakovlev Yak-7 ⓘ |
| era | 1940s ⓘ |
| family | Yakovlev Yak fighter family ⓘ |
| firstFlight | 1942 ⓘ |
| introduced | 1942 ⓘ |
| landingGear | retractable tailwheel landing gear ⓘ |
| manufacturer | Yakovlev Design Bureau ⓘ |
| notableFeature |
heavy cannon armament variants for anti‑armor and bomber interception
ⓘ
long‑range variants for escort missions ⓘ metal wing structure ⓘ |
| powerplant |
Klimov VK‑105 engine
ⓘ
Klimov VK‑105 engine ⓘ
surface form:
Klimov VK‑107 engine
|
| primaryUser |
Soviet Air Forces
ⓘ
surface form:
Red Army Air Forces
|
| propulsionType | piston engine ⓘ |
| role |
air superiority fighter
ⓘ
escort fighter ⓘ fighter ⓘ fighter‑bomber ⓘ ground‑attack aircraft ⓘ |
| serviceEntryContext | entered service during Battle of Stalingrad period ⓘ |
| status | retired from military service ⓘ |
| successor |
Yakovlev Yak-3
ⓘ
Yakovlev Yak-9 self-linksurface differs ⓘ
surface form:
Yakovlev Yak-9U
|
| theaterOfOperations | Eastern Front ⓘ |
| usedBy |
Korean People’s Army Air and Anti-Air Force
ⓘ
surface form:
North Korean Air Force
Chinese Air Force ⓘ
surface form:
People's Liberation Army Air Force
Polish Air Force ⓘ Soviet Air Forces ⓘ Yugoslav Partisans ⓘ |
| usedInConflict | Korean War ⓘ |
| variant |
Yakovlev Yak-9
self-linksurface differs
ⓘ
surface form:
Yak-9D
Yak-9K ⓘ Yakovlev Yak-9 self-linksurface differs ⓘ
surface form:
Yak-9M
Yak-9P ⓘ Yakovlev Yak-9 self-linksurface differs ⓘ
surface form:
Yak-9T
Yakovlev Yak-9 self-linksurface differs ⓘ
surface form:
Yak-9U
|
| 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: Yakovlev Yak-9 Description of subject: 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.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Yak-9T
this entity surface form:
Yak-9D
this entity surface form:
Yak-9M
this entity surface form:
Yak-9U
this entity surface form:
Yakovlev Yak-9U
subject surface form:
RS-82
subject surface form:
RS-132
this entity surface form:
Yakovlev Yak‑9
this entity surface form:
Yak‑9
this entity surface form:
Yakovlev Yak-9 (late variants)