| gptkbp:instanceOf | gptkb:aircraft 
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                                | gptkbp:capacity | 10 passengers 
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                                | gptkbp:category | gptkb:aircraft flying boats
 1940s United States civil utility aircraft
 
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                                | gptkbp:convertedTo | turboprop engines (in some aircraft) 
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                                | gptkbp:countryOfOrigin | gptkb:United_States 
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                                | gptkbp:crew | 2 
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                                | gptkbp:engineType | gptkb:Pratt_&_Whitney_R-1340_Wasp_radial_engines 
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                                | gptkbp:firstFlight | 1946 
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                                | gptkbp:height | 4.98 m 
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                                | gptkbp:introduced | 1946 
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                                | gptkbp:landingGear | retractable 
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                                | gptkbp:length | 12.1 m 
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                                | gptkbp:manufacturer | gptkb:Grumman 
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                                | gptkbp:maximumSpeed | 340 km/h 
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                                | gptkbp:maxTakeoffWeight | 5,670 kg 
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                                | gptkbp:notableOperation | gptkb:Chalk's_Ocean_Airways gptkb:Paspaley_Pearling_Company
 
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                                | gptkbp:numberBuilt | 59 
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                                | gptkbp:range | 1,770 km 
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                                | gptkbp:role | gptkb:helicopter 
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                                | gptkbp:serviceCeiling | 5,180 m 
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                                | gptkbp:status | some still in service 
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                                | gptkbp:successor | gptkb:Grumman_G-111 
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                                | gptkbp:type | gptkb:aircraft high-wing
 twin-engine
 
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                                | gptkbp:usedBy | private operators military operators
 commuter airlines
 
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                                | gptkbp:wingspan | 17.7 m 
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                                | gptkbp:bfsParent | gptkb:Canadian_Bushplane_Heritage_Centre 
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                                | gptkbp:bfsLayer | 6 
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                                | https://www.w3.org/2000/01/rdf-schema#label | Grumman G-73 Mallard 
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