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gptkbp:instance_of
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gptkb:jet_engine
|
|
gptkbp:application
|
commercial aviation
|
|
gptkbp:certification
|
FAA certified
|
|
gptkbp:compressor_type
|
axial compressor
|
|
gptkbp:control_system
|
hydromechanical
|
|
gptkbp:cooling_system
|
air-cooled
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gptkbp:design
|
conventional
|
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gptkbp:design_date
|
1960s
|
|
gptkbp:diameter
|
1.5 m
3.0 ft
|
|
gptkbp:emissions_standard
|
compliant with regulations
|
|
gptkbp:engine
|
1970s technology
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gptkbp:engine_configuration
|
twin-spool
wing-mounted
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|
gptkbp:engine_type
|
high-bypass turbofan
|
|
gptkbp:fuel_economy
|
moderate
0.5 lb/lbf/hr
|
|
gptkbp:fuel_type
|
gptkb:Jet_A
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
JT8 D-9 L
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gptkbp:legacy
|
widely used in regional jets
|
|
gptkbp:length
|
4.5 ft
|
|
gptkbp:maintenance
|
4,000 hours
|
|
gptkbp:manufacturer
|
gptkb:Pratt_&_Whitney
|
|
gptkbp:market_share
|
significant in 1970s
|
|
gptkbp:noise_level
|
Stage 3 compliant
|
|
gptkbp:notable_users
|
gptkb:American_Airlines
gptkb:Delta_Air_Lines
gptkb:United_Airlines
gptkb:Alaska_Airlines
gptkb:Continental_Airlines
|
|
gptkbp:number_of_stages
|
gptkb:5
|
|
gptkbp:operational_period
|
commercial flights
|
|
gptkbp:operational_range
|
30,000 ft to 40,000 ft
|
|
gptkbp:original_run
|
gptkb:1965
|
|
gptkbp:propulsion
|
18,500 lbf
|
|
gptkbp:reliability
|
high
|
|
gptkbp:retirement
|
phased out in 2000s
|
|
gptkbp:service
|
20,000 hours
|
|
gptkbp:successor
|
gptkb:JT8_D-200
|
|
gptkbp:thrust_reverser
|
yes
|
|
gptkbp:turbine_type
|
single-stage turbine
|
|
gptkbp:type
|
gptkb:turbofan_engine
|
|
gptkbp:used_in
|
gptkb:Mc_Donnell_Douglas_DC-10
|
|
gptkbp:weight
|
3,000 lb
|
|
gptkbp:bfsParent
|
gptkb:JT8_D-7
|
|
gptkbp:bfsLayer
|
7
|