M230 30 mm chain gun
E121150
The M230 30 mm chain gun is a single-barrel, electrically driven automatic cannon primarily used on attack helicopters for high-rate, accurate fire against ground targets.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Hughes M230 Chain Gun | 1 |
| M230 30 mm chain gun canonical | 1 |
| M230 Chain Gun Turret | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1053370 — 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: M230 30 mm chain gun Context triple: [Boeing AH-64 Apache, armament, M230 30 mm chain gun]
-
A.
M61A1 Vulcan 20 mm cannon
The M61A1 Vulcan 20 mm cannon is a six-barreled, electrically driven Gatling-style rotary cannon widely used on modern fighter aircraft for high-rate-of-fire air-to-air and air-to-ground engagements.
-
B.
7.62 mm M240 machine gun
The 7.62 mm M240 machine gun is a belt-fed, gas-operated general-purpose machine gun widely used by U.S. and NATO forces for infantry support and as a mounted weapon on vehicles and aircraft.
-
C.
MG 131 machine gun
The MG 131 machine gun was a German 13 mm aircraft-mounted heavy machine gun used extensively by the Luftwaffe during World War II for defensive and offensive armament on various combat aircraft.
-
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.
7.62 mm L37A1 machine gun
The 7.62 mm L37A1 machine gun is a British coaxial/general-purpose machine gun variant chambered in 7.62×51mm NATO, commonly mounted on armored fighting vehicles.
- 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: M230 30 mm chain gun Target entity description: The M230 30 mm chain gun is a single-barrel, electrically driven automatic cannon primarily used on attack helicopters for high-rate, accurate fire against ground targets.
-
A.
M61A1 Vulcan 20 mm cannon
The M61A1 Vulcan 20 mm cannon is a six-barreled, electrically driven Gatling-style rotary cannon widely used on modern fighter aircraft for high-rate-of-fire air-to-air and air-to-ground engagements.
-
B.
7.62 mm M240 machine gun
The 7.62 mm M240 machine gun is a belt-fed, gas-operated general-purpose machine gun widely used by U.S. and NATO forces for infantry support and as a mounted weapon on vehicles and aircraft.
-
C.
MG 131 machine gun
The MG 131 machine gun was a German 13 mm aircraft-mounted heavy machine gun used extensively by the Luftwaffe during World War II for defensive and offensive armament on various combat aircraft.
-
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.
7.62 mm L37A1 machine gun
The 7.62 mm L37A1 machine gun is a British coaxial/general-purpose machine gun variant chambered in 7.62×51mm NATO, commonly mounted on armored fighting vehicles.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
aircraft autocannon
ⓘ
automatic cannon ⓘ chain gun ⓘ |
| actionType | chain-driven ⓘ |
| alsoKnownAs |
M230 30 mm chain gun
ⓘ
surface form:
Hughes M230 Chain Gun
|
| ammunitionType | 30×113 mm B ⓘ |
| barrelConfiguration | single-barrel ⓘ |
| caliber | 30 mm ⓘ |
| conflictUse |
Gulf War
ⓘ
Iraq War ⓘ War in Afghanistan (2001–2021) ⓘ |
| controlSystem |
fire-control system integration
ⓘ
helmet-mounted sight integration on AH-64 ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designedBy | Hughes Helicopters ⓘ |
| designedFor |
helicopter integration
ⓘ
high accuracy ⓘ high reliability ⓘ |
| driveType | electric motor driven ⓘ |
| feature |
externally powered chain drive reduces jams
ⓘ
single-operator control from cockpit ⓘ |
| feedSystem | linkless feed system ⓘ |
| firingMode |
continuous fire
ⓘ
selectable burst lengths ⓘ |
| introducedInService | late 1970s–early 1980s ⓘ |
| manufacturer |
Alliant Techsystems
ⓘ
Northrop Grumman ⓘ |
| mountingLocation | chin turret on AH-64 Apache ⓘ |
| mountingSystem |
M230 30 mm chain gun
self-linksurface differs
ⓘ
surface form:
M230 Chain Gun Turret
|
| mountType | turreted gun system ⓘ |
| natoCaliberClass | 30 mm aircraft gun ⓘ |
| operation | externally powered ⓘ |
| powerSource | aircraft electrical system ⓘ |
| primaryRole | air-to-ground weapon ⓘ |
| primaryUse | engaging ground targets ⓘ |
| rateOfFire | approximately 625 rounds per minute ⓘ |
| typicalAmmunition |
armor-piercing incendiary
ⓘ
high-explosive incendiary ⓘ training practice rounds ⓘ |
| usedBy |
United States Army
ⓘ
multiple foreign Apache operators ⓘ |
| usedOnPlatform |
Boeing AH-64 Apache
ⓘ
surface form:
AH-64 Apache
Boeing AH-64 Apache ⓘ
surface form:
AH-64D Apache Longbow
Boeing AH-64 Apache ⓘ
surface form:
AH-64E Apache Guardian
MH-60 Black Hawk ⓘ
surface form:
MH-60L DAP
UH-60 Black Hawk ⓘ
surface form:
UH-60 Black Hawk variants
ground vehicle mounts ⓘ |
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: M230 30 mm chain gun Description of subject: The M230 30 mm chain gun is a single-barrel, electrically driven automatic cannon primarily used on attack helicopters for high-rate, accurate fire against ground targets.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
M230 Chain Gun Turret
this entity surface form:
Hughes M230 Chain Gun