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gptkbp:instance_of
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gptkb:jet_engine
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gptkbp:aircraft_type
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gptkb:aircraft
gptkb:military_aircraft
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gptkbp:assembly_location
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gptkb:East_Hartford,_Connecticut
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gptkbp:average_temperature
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up to 1,000 ° C
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gptkbp:combustor_type
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annular combustor
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gptkbp:compressor_type
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axial compressor
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gptkbp:debut
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gptkb:1956
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gptkbp:design
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Pratt & Whitney engineers
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gptkbp:design_purpose
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gptkb:military_aircraft
commercial aviation
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gptkbp:development
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gptkb:JT3_D
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gptkbp:diameter
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3.5 ft
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gptkbp:emissions_standard
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high
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gptkbp:engine
|
Brayton cycle
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gptkbp:engine_configuration
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turbojet
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gptkbp:first_flight
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gptkb:1957
1990s
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gptkbp:fuel_economy
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low
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gptkbp:fuel_type
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gptkb:Jet_A
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gptkbp:historical_significance
|
first jet engine for commercial use
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|
https://www.w3.org/2000/01/rdf-schema#label
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JT3 engine family
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gptkbp:influenced
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subsequent jet engines
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gptkbp:influenced_by
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early turbojets
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gptkbp:involved_technology
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afterburner technology
variable geometry inlet
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gptkbp:legacy
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paved the way for modern turbofans
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gptkbp:length
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12.5 ft
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gptkbp:maintenance
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1,500 hours
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gptkbp:manufacturer
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gptkb:Pratt_&_Whitney
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gptkbp:noise_level
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high
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gptkbp:notable_users
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gptkb:Trans_World_Airlines
gptkb:United_Airlines
gptkb:Pan_American_World_Airways
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gptkbp:operational_range
|
high subsonic speeds
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gptkbp:operational_status
|
retired
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gptkbp:produces
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over 1,000
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gptkbp:propulsion
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6:1
up to 18,500 lbf
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gptkbp:related_to
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gptkb:JT3_D_engine_family
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gptkbp:retirement_year
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gptkb:1980s
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gptkbp:service_years
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gptkb:1958
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gptkbp:successor
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gptkb:JT8_D_engine_family
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gptkbp:turbine_type
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single-stage turbine
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gptkbp:type
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gptkb:turbofan_engine
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gptkbp:used_in
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gptkb:Boeing_707
gptkb:Douglas_DC-8
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gptkbp:variant
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gptkb:JT3_C
gptkb:JT3_D
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gptkbp:weight
|
3,000 lb
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gptkbp:bfsParent
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gptkb:Pratt_&_Whitney_JT3_D
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gptkbp:bfsLayer
|
5
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