4.5 inch Mark 8 naval gun
E231488
The 4.5 inch Mark 8 naval gun is a British dual-purpose naval artillery piece designed for surface and anti-air warfare, widely fitted to Royal Navy warships.
All labels observed (3)
| Label | Occurrences |
|---|---|
| 4.5 inch Mark 8 naval gun canonical | 2 |
| 4.5 inch Mark 8 Mod 1 naval gun | 1 |
| QF 4.5-inch Mark V naval gun | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2070940 — 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: 4.5 inch Mark 8 naval gun Context triple: [Type 45 destroyer, hasGunArmament, 4.5 inch Mark 8 naval gun]
-
A.
Vickers 14-inch naval gun
The Vickers 14-inch naval gun was a heavy battleship main armament developed in the early 20th century, used by several navies for long-range naval and coastal artillery.
-
B.
Vickers 15-inch naval gun
The Vickers 15-inch naval gun was a powerful British battleship main armament developed in the early 20th century, renowned for its heavy long-range firepower in World War I and World War II.
-
C.
40 mm Bofors autocannon
The 40 mm Bofors autocannon is a widely used, rapid-firing anti-aircraft and multi-purpose gun system renowned for its reliability and effectiveness since World War II.
-
D.
Mauser BK-27 27 mm cannon
The Mauser BK-27 is a German-designed 27 mm revolver cannon widely used in modern fighter aircraft for high-rate, accurate air-to-air and air-to-ground fire.
-
E.
L30 120 mm tank gun
The L30 120 mm tank gun is a British rifled main battle tank cannon used primarily on later variants of the Challenger series, known for its high accuracy and compatibility with separate-loading ammunition.
- 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: 4.5 inch Mark 8 naval gun Target entity description: The 4.5 inch Mark 8 naval gun is a British dual-purpose naval artillery piece designed for surface and anti-air warfare, widely fitted to Royal Navy warships.
-
A.
Vickers 14-inch naval gun
The Vickers 14-inch naval gun was a heavy battleship main armament developed in the early 20th century, used by several navies for long-range naval and coastal artillery.
-
B.
Vickers 15-inch naval gun
The Vickers 15-inch naval gun was a powerful British battleship main armament developed in the early 20th century, renowned for its heavy long-range firepower in World War I and World War II.
-
C.
40 mm Bofors autocannon
The 40 mm Bofors autocannon is a widely used, rapid-firing anti-aircraft and multi-purpose gun system renowned for its reliability and effectiveness since World War II.
-
D.
Mauser BK-27 27 mm cannon
The Mauser BK-27 is a German-designed 27 mm revolver cannon widely used in modern fighter aircraft for high-rate, accurate air-to-air and air-to-ground fire.
-
E.
L30 120 mm tank gun
The L30 120 mm tank gun is a British rifled main battle tank cannon used primarily on later variants of the Challenger series, known for its high accuracy and compatibility with separate-loading ammunition.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
artillery piece
ⓘ
dual-purpose gun ⓘ naval gun ⓘ |
| barrelLength | approximately 55 calibres ⓘ |
| breechType | semi-automatic ⓘ |
| caliber |
114 mm
ⓘ
4.5 inch ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| crewRequired | remote controlled from operations room ⓘ |
| designedAs | replacement for earlier 4.5 inch mounts ⓘ |
| designedFor | Royal Navy warships ⓘ |
| fireControl |
computer-controlled
ⓘ
radar-directed ⓘ |
| fittedOn |
Type 21 frigate
ⓘ
Type 22 frigate ⓘ Type 23 frigates ⓘ
surface form:
Type 23 frigate
Type 42 destroyer ⓘ Type 45 destroyers ⓘ
surface form:
Type 45 destroyer
Type 82 destroyer ⓘ |
| hasVariant |
Mark 8 Mod 0
ⓘ
Mark 8 Mod 0 ⓘ
surface form:
Mark 8 Mod 1
|
| housing | stealthier turret on Mod 1 ⓘ |
| inServiceWith | Royal Navy ⓘ |
| loadingMechanism | automatic ⓘ |
| manufacturer |
BAE Systems
ⓘ
surface form:
BAE Systems (successor)
Vickers-Armstrongs ⓘ
surface form:
Vickers
|
| maximumRange | over 20 km ⓘ |
| mountingType | single mount ⓘ |
| mountWeight | approximately 21 tonnes ⓘ |
| operatedBy | gun controller in operations room ⓘ |
| platformType | surface combatant ships ⓘ |
| primaryUser | Royal Navy ⓘ |
| propellant | separate propellant charge in cartridge case ⓘ |
| rateOfFire | about 25 rounds per minute ⓘ |
| replaced |
4.5 inch Mark 8 naval gun
self-linksurface differs
ⓘ
surface form:
QF 4.5-inch Mark V naval gun
|
| role |
ship self-defence
ⓘ
shore bombardment ⓘ |
| serviceEntry | 1970s ⓘ |
| shellDiameter | 114 mm ⓘ |
| shellType | fixed ammunition ⓘ |
| shellWeight | approximately 21 kg ⓘ |
| successor |
4.5 inch Mark 8 naval gun
self-linksurface differs
ⓘ
surface form:
4.5 inch Mark 8 Mod 1 naval gun
|
| usedFor |
anti-air warfare
ⓘ
naval gunfire support ⓘ surface warfare ⓘ |
| warheadTypes |
high-explosive shell
ⓘ
illumination shell ⓘ practice shell ⓘ |
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: 4.5 inch Mark 8 naval gun Description of subject: The 4.5 inch Mark 8 naval gun is a British dual-purpose naval artillery piece designed for surface and anti-air warfare, widely fitted to Royal Navy warships.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Type 45 destroyer
this entity surface form:
QF 4.5-inch Mark V naval gun
this entity surface form:
4.5 inch Mark 8 Mod 1 naval gun