Spearfish heavyweight torpedoes

E345098

heavyweight torpedo submarine-launched weapon torpedo

Spearfish heavyweight torpedoes are advanced British submarine-launched torpedoes designed for high-speed, long-range engagement of both surface ships and submarines.

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All labels observed (5)

Label	Occurrences
Spearfish heavyweight torpedoes canonical	3
Spearfish torpedo	2
Spearfish torpedoes	2
Spearfish heavyweight torpedo	1
Tigerfish torpedo	1

How this entity was disambiguated

This entity first appeared as the object of triple T3291714 — 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: Spearfish heavyweight torpedoes
Context triple: [Astute-class submarine, armament, Spearfish heavyweight torpedoes]

A. Type 93 Long Lance torpedo
The Type 93 "Long Lance" torpedo was a highly advanced, oxygen-fueled Japanese naval torpedo of World War II, renowned for its exceptional range, speed, and destructive power.
B. Mark 8 torpedo
The Mark 8 torpedo is a World War II–era British-designed straight-running torpedo that remained in service for decades and gained particular notoriety for its use by the Royal Navy in the 1982 sinking of the Argentine cruiser ARA General Belgrano during the Falklands War.
C. UGM-84 Harpoon anti-ship missiles
The UGM-84 Harpoon is a submarine-launched, all-weather, over-the-horizon anti-ship cruise missile widely used by Western navies for engaging surface vessels.
D. Type 12 surface-to-ship missile
The Type 12 surface-to-ship missile is a modern Japanese truck-mounted anti-ship cruise missile system designed for coastal defense and long-range precision strikes against naval targets.
E. Torpedo Gorky
Torpedo Gorky was a prominent Soviet ice hockey club from Gorky (now Nizhny Novgorod) that competed at the top level of the Soviet Championship League.
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: Spearfish heavyweight torpedoes
Target entity description: Spearfish heavyweight torpedoes are advanced British submarine-launched torpedoes designed for high-speed, long-range engagement of both surface ships and submarines.

A. Type 93 Long Lance torpedo
The Type 93 "Long Lance" torpedo was a highly advanced, oxygen-fueled Japanese naval torpedo of World War II, renowned for its exceptional range, speed, and destructive power.
B. Mark 8 torpedo
The Mark 8 torpedo is a World War II–era British-designed straight-running torpedo that remained in service for decades and gained particular notoriety for its use by the Royal Navy in the 1982 sinking of the Argentine cruiser ARA General Belgrano during the Falklands War.
C. UGM-84 Harpoon anti-ship missiles
The UGM-84 Harpoon is a submarine-launched, all-weather, over-the-horizon anti-ship cruise missile widely used by Western navies for engaging surface vessels.
D. Type 12 surface-to-ship missile
The Type 12 surface-to-ship missile is a modern Japanese truck-mounted anti-ship cruise missile system designed for coastal defense and long-range precision strikes against naval targets.
E. Torpedo Gorky
Torpedo Gorky was a prominent Soviet ice hockey club from Gorky (now Nizhny Novgorod) that competed at the top level of the Soviet Championship League.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	heavyweight torpedo ⓘ submarine-launched weapon ⓘ torpedo ⓘ
caliber	21 inch ⓘ
combatCapability	engagement of highly maneuverable targets ⓘ high-speed long-range engagement ⓘ
countryOfOrigin	United Kingdom ⓘ
designedFor	anti-submarine warfare ⓘ anti-surface warfare ⓘ submarine launch ⓘ
designedToEngage	submarines ⓘ surface ships ⓘ
developedFor	Cold War-era threat environment ⓘ
diameter	533 millimeters ⓘ
feature	counter-countermeasures capability ⓘ digital signal processing ⓘ programmable search patterns ⓘ re-attack capability ⓘ
guidanceSystem	active sonar homing ⓘ autonomous terminal guidance ⓘ passive sonar homing ⓘ wire-guided ⓘ
inServiceWith	Royal Navy attack submarines ⓘ linked to: Royal Navy Submarine Service Royal Navy nuclear-powered submarines ⓘ linked to: Royal Navy Submarine Service
launchPlatform	Astute-class submarines ⓘ linked to: Astute-class submarine Trafalgar-class submarines ⓘ linked to: Trafalgar-class submarine
length	approximately 7 meters ⓘ
manufacturer	BAE Systems ⓘ GEC-Marconi Underwater Systems ⓘ linked to: GEC-Marconi
maximumSpeed	over 70 knots ⓘ
operatingEnvironment	deep water ⓘ littoral waters ⓘ
operator	Royal Navy Submarine Service ⓘ
powerSource	Otto fuel II ⓘ linked to: JP-7
propulsion	gas-turbine engine ⓘ pump-jet ⓘ
range	over 50 kilometers ⓘ
replaced	Tigerfish torpedo ⓘ
role	primary heavyweight torpedo of the Royal Navy ⓘ
serviceEntry	1990s ⓘ
status	in service ⓘ
upgradeFeatures	enhanced reliability ⓘ improved guidance system ⓘ new warhead safety and arming system ⓘ
upgradeProgram	Spearfish Mod 1 ⓘ
usedBy	Royal Navy ⓘ
warheadType	high-explosive ⓘ shaped charge ⓘ

How these facts were elicited

Referenced by (9)

Full triples — surface form annotated when it differs from this entity's canonical label.

Astute-class submarine → armament → Spearfish heavyweight torpedoes ⓘ

Vanguard-class ballistic missile submarine → armament → Spearfish heavyweight torpedo ⓘ

subject linked to: Vanguard-class ballistic missile submarines