Ula-class submarines
E123964
Ula-class submarines are a fleet of small, modern diesel-electric attack submarines operated by Norway, optimized for stealthy coastal and littoral operations.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ula-class submarine | 1 |
| Ula-class submarines canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1065474 — 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: Ula-class submarines Context triple: [Norwegian Armed Forces, usesEquipment, Ula-class submarines]
-
A.
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.
-
B.
Vanguard-class ballistic missile submarines
Vanguard-class ballistic missile submarines are the United Kingdom’s nuclear-powered, nuclear-armed submarines that form the seaborne leg of its strategic deterrent force.
-
C.
Victoria-class submarine
The Victoria-class submarine is a class of diesel-electric attack submarines originally built for the Royal Navy as the Upholder class and later modernized and operated by the Royal Canadian Navy for coastal defense, surveillance, and training.
-
D.
Dreadnought-class submarine
The Dreadnought-class submarine is a new generation of British nuclear-powered ballistic missile submarines designed to replace the Royal Navy’s Vanguard class as the backbone of the UK’s sea-based nuclear deterrent.
-
E.
Hamina-class missile boat
The Hamina-class missile boat is a class of fast, stealthy Finnish Navy combat vessels designed for coastal defense and equipped with advanced anti-ship and air-defense weaponry.
- 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: Ula-class submarines Target entity description: Ula-class submarines are a fleet of small, modern diesel-electric attack submarines operated by Norway, optimized for stealthy coastal and littoral operations.
-
A.
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.
-
B.
Vanguard-class ballistic missile submarines
Vanguard-class ballistic missile submarines are the United Kingdom’s nuclear-powered, nuclear-armed submarines that form the seaborne leg of its strategic deterrent force.
-
C.
Victoria-class submarine
The Victoria-class submarine is a class of diesel-electric attack submarines originally built for the Royal Navy as the Upholder class and later modernized and operated by the Royal Canadian Navy for coastal defense, surveillance, and training.
-
D.
Dreadnought-class submarine
The Dreadnought-class submarine is a new generation of British nuclear-powered ballistic missile submarines designed to replace the Royal Navy’s Vanguard class as the backbone of the UK’s sea-based nuclear deterrent.
-
E.
Hamina-class missile boat
The Hamina-class missile boat is a class of fast, stealthy Finnish Navy combat vessels designed for coastal defense and equipped with advanced anti-ship and air-defense weaponry.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
diesel-electric attack submarine
ⓘ
submarine class ⓘ |
| allianceUse |
NATO naval exercises
ⓘ
surface form:
NATO exercises
|
| armament | 533 mm torpedo tubes ⓘ |
| beam | approximately 5.4 meters ⓘ |
| builder |
Howaldtswerke-Deutsche Werft
ⓘ
ThyssenKrupp AG ⓘ
surface form:
Thyssen Nordseewerke
|
| countryOfOrigin | Norway ⓘ |
| crewComplement |
about 21
ⓘ
up to 24 ⓘ |
| designContributor |
Kongsberg
ⓘ
Norwegian Defence Research Establishment ⓘ |
| designedFor |
anti-submarine warfare
ⓘ
anti-surface warfare ⓘ operations in Norwegian coastal waters ⓘ stealthy coastal operations ⓘ |
| displacementSubmerged | approximately 1150 tonnes ⓘ |
| displacementSurfaced | approximately 1040 tonnes ⓘ |
| draught | approximately 4.6 meters ⓘ |
| firstUnitCommissioned | KNM Ula ⓘ |
| hullType | single-hull ⓘ |
| length | approximately 59 meters ⓘ |
| maximumSpeedSubmerged | approximately 23 knots ⓘ |
| maximumSpeedSurfaced | approximately 11 knots ⓘ |
| modernization |
combat system upgrade
ⓘ
mid-life upgrade in the 2000s ⓘ navigation system upgrade ⓘ sonar upgrade ⓘ |
| namingConvention | named after Norwegian towns ⓘ |
| notableFeature |
high maneuverability in shallow waters
ⓘ
low acoustic signature ⓘ |
| numberBuilt | 6 ⓘ |
| numberOfTorpedoTubes | 8 ⓘ |
| operator | Royal Norwegian Navy ⓘ |
| primaryRole |
coastal defense
ⓘ
littoral warfare ⓘ |
| propulsion | diesel-electric ⓘ |
| sensor |
electronic support measures
ⓘ
periscope ⓘ |
| serviceEntry | 1989 ⓘ |
| sonarSuite |
bow-mounted sonar
ⓘ
flank array sonar ⓘ towed array sonar ⓘ |
| status | in active service with Norway ⓘ |
| successorPlannedAs | Type 212CD-class submarine ⓘ |
| torpedoCaliber | 533 mm ⓘ |
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: Ula-class submarines Description of subject: Ula-class submarines are a fleet of small, modern diesel-electric attack submarines operated by Norway, optimized for stealthy coastal and littoral operations.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ula-class submarine