| gptkbp:instanceOf | gptkb:artillery gptkb:autocannon
 
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                                | gptkbp:action | electrically driven hydraulically driven
 
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                                | gptkbp:ammunitionType | 20×102mm 
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                                | gptkbp:barrelLength | 6 
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                                | gptkbp:caliber | 20 mm 
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                                | gptkbp:category | Aircraft guns Rotary cannons
 
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                                | gptkbp:coolingSystem | air-cooled 
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                                | gptkbp:countryOfOrigin | gptkb:United_States 
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                                | gptkbp:designedBy | gptkb:General_Electric 
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                                | gptkbp:enteredService | 1959 
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                                | gptkbp:feedSystem | linkless ammunition feed 
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                                | gptkbp:fireModes | electrically primed 
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                                | gptkbp:length | 1.88 m 
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                                | gptkbp:manufacturer | gptkb:General_Electric 
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                                | gptkbp:muzzleVelocity | 1,050 m/s 
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                                | gptkbp:notableVariant | GAU-12/U Equalizer (derived) GAU-4
 M61A1
 M61A2
 
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                                | gptkbp:primaryUse | gptkb:aircraft 
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                                | gptkbp:rateOfFire | 6,000 rounds per minute 
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                                | gptkbp:status | in service 
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                                | gptkbp:usedBy | gptkb:United_States_Air_Force gptkb:United_States_Marine_Corps
 gptkb:United_States_Navy
 gptkb:Royal_Australian_Air_Force
 gptkb:Japan_Air_Self-Defense_Force
 
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                                | gptkbp:usedInConflict | gptkb:Gulf_War gptkb:Iraq_War
 gptkb:Vietnam_War
 gptkb:War_in_Afghanistan
 
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                                | gptkbp:usedOn | gptkb:Phalanx_CIWS gptkb:aircraft
 gptkb:F-104_Starfighter
 gptkb:F-8_Crusader
 gptkb:F-105_Thunderchief
 gptkb:B-58_Hustler
 gptkb:AC-130_gunship
 F-111 Aardvark
 F-14 Tomcat
 F-15 Eagle
 F-22 Raptor
 F-4 Phantom II
 F/A-18 Hornet
 
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                                | gptkbp:weight | 112 kg 
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                                | gptkbp:bfsParent | gptkb:Lockheed_AC-130 gptkb:F-4F
 gptkb:FA-50
 
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                                | gptkbp:bfsLayer | 7 
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                                | https://www.w3.org/2000/01/rdf-schema#label | 20 mm M61 Vulcan cannon 
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