| gptkbp:instanceOf | gptkb:piston_engine 
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                                | gptkbp:application | gptkb:aircraft maritime patrol
 airborne early warning
 
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                                | gptkbp:civilianDesignation | gptkb:501-D 
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                                | gptkbp:countryOfOrigin | gptkb:United_States 
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                                | gptkbp:diameter | approximately 22 inches 
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                                | gptkbp:firstFlight | 1954 
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                                | gptkbp:fuelType | gptkb:gasoline 
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                                | gptkbp:introduced | 1954 
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                                | gptkbp:length | approximately 112 inches 
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                                | gptkbp:manufacturer | gptkb:Rolls-Royce gptkb:Allison_Engine_Company
 
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                                | gptkbp:militaryDesignation | gptkb:T56 
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                                | gptkbp:notableVariant | gptkb:501-D13 gptkb:501-D22
 gptkb:T56-A-14
 gptkb:T56-A-15
 gptkb:T56-A-7
 
 | 
                        
                            
                                | gptkbp:numberOfStages | 14 4
 
 | 
                        
                            
                                | gptkbp:powerOutput | up to 5,600 shp 
 | 
                        
                            
                                | gptkbp:status | in production 
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                                | gptkbp:successor | gptkb:Rolls-Royce_AE_2100 
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                                | gptkbp:type | axial flow turboprop 
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                                | gptkbp:usedInAircraft | gptkb:Grumman_C-2_Greyhound gptkb:Grumman_E-2_Hawkeye
 gptkb:Lockheed_C-130_Hercules
 gptkb:Lockheed_Electra
 gptkb:Lockheed_P-3_Orion
 
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                                | gptkbp:weight | approximately 1,900 lb 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:AE_2100 
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                                | gptkbp:bfsLayer | 6 
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                                | https://www.w3.org/2000/01/rdf-schema#label | Rolls-Royce T56 
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