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gptkbp:instance_of
|
gptkb:jet_engine
|
|
gptkbp:aircraft_type
|
narrow-body aircraft
|
|
gptkbp:application
|
commercial aviation
|
|
gptkbp:cancellation_reason
|
yes
|
|
gptkbp:certification
|
Stage 3
|
|
gptkbp:combustor_type
|
annular combustor
|
|
gptkbp:compressor_type
|
axial compressor
|
|
gptkbp:control_system
|
hydromechanical control system
|
|
gptkbp:cooling_system
|
air-cooled
|
|
gptkbp:design_feature
|
high bypass ratio
|
|
gptkbp:development
|
1950s to 1960s
|
|
gptkbp:diameter
|
approximately 3 ft
approximately 6 ft
|
|
gptkbp:engine
|
gptkb:JT8_D
air-start
|
|
gptkbp:engine_configuration
|
twin-spool
wing-mounted
high-bypass ratio
|
|
gptkbp:engine_power
|
20,000 hours
|
|
gptkbp:engine_type
|
turbofan
JT3 D-1, JT3 D-3
|
|
gptkbp:fan_art
|
single-stage fan
|
|
gptkbp:first_flight
|
1960s
|
|
gptkbp:first_introduced
|
gptkb:1961
|
|
gptkbp:fuel_economy
|
high
|
|
gptkbp:fuel_type
|
gptkb:Jet_A
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
JT3 D engine family
|
|
gptkbp:is_tested_for
|
extensive ground testing
|
|
gptkbp:legacy
|
reliable performance
|
|
gptkbp:length
|
approximately 12 ft
|
|
gptkbp:maintenance
|
5,000 hours
|
|
gptkbp:manufacturer
|
gptkb:Pratt_&_Whitney
|
|
gptkbp:market_segment
|
commercial air transport
|
|
gptkbp:max_speed
|
Mach 0.85
|
|
gptkbp:notable_users
|
gptkb:American_Airlines
gptkb:Trans_World_Airlines
gptkb:United_Airlines
gptkb:Eastern_Air_Lines
gptkb:Pan_American_World_Airways
|
|
gptkbp:number_of_stages
|
8 stages
|
|
gptkbp:operational_history
|
1960s to 1990s
|
|
gptkbp:operational_range
|
long-range
|
|
gptkbp:origin
|
gptkb:United_States
|
|
gptkbp:propulsion
|
yes
6:1
up to 18,500 lbf
|
|
gptkbp:rate_of_fire
|
high efficiency
|
|
gptkbp:retirement_year
|
1990s
|
|
gptkbp:service_ceiling
|
35,000 ft
|
|
gptkbp:successor
|
gptkb:JT8_D_engine
|
|
gptkbp:turbine_type
|
two-stage turbine
|
|
gptkbp:type
|
gptkb:turbofan_engine
|
|
gptkbp:used_in
|
gptkb:Boeing_707
gptkb:Douglas_DC-8
|
|
gptkbp:weight
|
3,000 lb
approximately 3,000 lb
|
|
gptkbp:bfsParent
|
gptkb:JT3_engine_family
|
|
gptkbp:bfsLayer
|
6
|