| gptkbp:instanceOf | gptkb:aircraft 
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                                | gptkbp:armament | bombs machine guns
 depth charges
 
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                                | gptkbp:category | gptkb:aircraft gptkb:bomber
 
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                                | gptkbp:crew | 7 
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                                | gptkbp:emptyWeight | 37,000 lb (16,783 kg) 
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                                | gptkbp:engineType | Wright R-2600-22 Twin Cyclone radial engines 
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                                | gptkbp:firstFlight | 1939 
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                                | gptkbp:height | 24 ft 9 in (7.54 m) 
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                                | gptkbp:introduced | 1940 
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                                | gptkbp:length | 80 ft 0 in (24.38 m) 
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                                | gptkbp:manufacturer | gptkb:Glenn_L._Martin_Company 
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                                | gptkbp:maximumSpeed | 200 mph (322 km/h) 
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                                | gptkbp:maxTakeoffWeight | 60,000 lb (27,216 kg) 
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                                | gptkbp:numberOfEngines | 2 
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                                | gptkbp:powerplant | 1,700 hp (1,268 kW) each 
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                                | gptkbp:primaryUser | gptkb:Royal_Air_Force gptkb:United_States_Coast_Guard
 gptkb:United_States_Navy
 gptkb:Royal_Australian_Air_Force
 
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                                | gptkbp:range | 2,600 mi (4,184 km) 
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                                | gptkbp:retired | 1967 
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                                | gptkbp:serviceCeiling | 19,500 ft (5,944 m) 
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                                | gptkbp:successor | gptkb:Martin_P5M_Marlin 
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                                | gptkbp:usedInConflict | gptkb:Korean_War gptkb:World_War_II
 
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                                | gptkbp:variant | gptkb:PBM-1 gptkb:PBM-3
 gptkb:PBM-5
 
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                                | gptkbp:wingspan | 118 ft 0 in (35.97 m) 
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                                | gptkbp:bfsParent | gptkb:RAAF_flying_boat_repair_base gptkb:Patrol_Squadron_10
 
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                                | gptkbp:bfsLayer | 7 
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                                | https://www.w3.org/2000/01/rdf-schema#label | Martin Mariner 
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