Akula-class submarine
E230427
The Akula-class submarine is a series of nuclear-powered attack submarines developed by the Soviet Union during the Cold War, known for their improved stealth, speed, and advanced weaponry compared to earlier Soviet designs.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Akula-class submarine canonical | 2 |
| Improved Akula | 1 |
| Project 971 Shchuka-B | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1947812 — 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: Akula-class submarine Context triple: [Soviet Navy, notableShipClass, Akula-class submarine]
-
A.
Ula-class submarines
Ula-class submarines are a fleet of small, modern diesel-electric attack submarines operated by Norway, optimized for stealthy coastal and littoral operations.
-
B.
Victor-class submarine
The Victor-class submarine was a series of Soviet nuclear-powered attack submarines developed during the Cold War for high-speed, deep-diving anti-submarine and anti-surface warfare.
-
C.
Delta-class submarine
The Delta-class submarine is a series of Soviet nuclear-powered ballistic missile submarines developed during the Cold War to enhance the USSR’s strategic nuclear deterrent.
-
D.
Oscar-class submarine
The Oscar-class submarine is a Soviet-designed nuclear-powered cruise missile submarine class built during the Cold War to attack NATO carrier battle groups and strategic targets at sea.
-
E.
Astute-class submarine
The Astute-class submarine is a fleet of advanced nuclear-powered attack submarines built for the Royal Navy, known for their stealth, endurance, and sophisticated weapons and sensor 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: Akula-class submarine Target entity description: The Akula-class submarine is a series of nuclear-powered attack submarines developed by the Soviet Union during the Cold War, known for their improved stealth, speed, and advanced weaponry compared to earlier Soviet designs.
-
A.
Ula-class submarines
Ula-class submarines are a fleet of small, modern diesel-electric attack submarines operated by Norway, optimized for stealthy coastal and littoral operations.
-
B.
Victor-class submarine
The Victor-class submarine was a series of Soviet nuclear-powered attack submarines developed during the Cold War for high-speed, deep-diving anti-submarine and anti-surface warfare.
-
C.
Delta-class submarine
The Delta-class submarine is a series of Soviet nuclear-powered ballistic missile submarines developed during the Cold War to enhance the USSR’s strategic nuclear deterrent.
-
D.
Oscar-class submarine
The Oscar-class submarine is a Soviet-designed nuclear-powered cruise missile submarine class built during the Cold War to attack NATO carrier battle groups and strategic targets at sea.
-
E.
Astute-class submarine
The Astute-class submarine is a fleet of advanced nuclear-powered attack submarines built for the Royal Navy, known for their stealth, endurance, and sophisticated weapons and sensor systems.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
nuclear-powered attack submarine
ⓘ
submarine class ⓘ |
| armament |
cruise missiles
ⓘ
mines ⓘ torpedoes ⓘ |
| classification | third-generation nuclear attack submarine ⓘ |
| constructionMaterial | steel hull ⓘ |
| countryOfOrigin |
Russia
ⓘ
Soviet Union ⓘ |
| crewSize | approximately 70 ⓘ |
| designBureau | Rubin Design Bureau ⓘ |
| displacementSubmerged | approximately 12000 tonnes ⓘ |
| era | Cold War ⓘ |
| feature |
advanced sonar systems
ⓘ
advanced weaponry ⓘ anechoic tiles ⓘ double-hull design ⓘ high underwater speed ⓘ improved stealth ⓘ towed array sonar ⓘ |
| firstUnitCommissioned | 1984 ⓘ |
| hasVariant |
Akula I
ⓘ
Akula ⓘ
surface form:
Akula II
Akula I ⓘ
surface form:
Akula III
Akula-class submarine self-linksurface differs ⓘ
surface form:
Improved Akula
|
| hullConfiguration | double hull ⓘ |
| introduced | 1980s ⓘ |
| length | approximately 110 meters ⓘ |
| maximumDivingDepth | over 500 meters ⓘ |
| maximumSpeedSubmerged | over 30 knots ⓘ |
| missileSystem |
SS-N-15 Starfish
ⓘ
SS-N-15 Starfish ⓘ
surface form:
SS-N-16 Stallion
SS-N-21 Sampson ⓘ |
| NATOReportingName | Akula ⓘ |
| notableLease | INS Chakra (leased to India) ⓘ |
| operator |
Indian Navy
ⓘ
Russian Navy ⓘ Soviet Navy ⓘ |
| powerPlant | pressurized-water reactor ⓘ |
| primaryRole |
anti-submarine warfare
ⓘ
anti-surface warfare ⓘ |
| propulsion | nuclear reactor ⓘ |
| RussianDesignation |
Akula-class submarine
self-linksurface differs
ⓘ
surface form:
Project 971 Shchuka-B
|
| submarineType | attack submarine ⓘ |
| successorTo | Victor-class submarine ⓘ |
| torpedoTubeConfiguration |
533 mm torpedo tubes
ⓘ
650 mm torpedo tubes ⓘ |
| usedFor |
covert operations
ⓘ
intelligence gathering ⓘ |
| usedIn | Russian strategic deterrence posture ⓘ |
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: Akula-class submarine Description of subject: The Akula-class submarine is a series of nuclear-powered attack submarines developed by the Soviet Union during the Cold War, known for their improved stealth, speed, and advanced weaponry compared to earlier Soviet designs.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Project 971 Shchuka-B
this entity surface form:
Improved Akula