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gptkbp:instance_of
|
gptkb:turbofan_engine
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|
gptkbp:application
|
gptkb:Boeing_727
|
|
gptkbp:average_temperature
|
1,500 ° F
|
|
gptkbp:certification
|
FAA certified
|
|
gptkbp:combustor_type
|
annular combustor
|
|
gptkbp:compressor_type
|
axial
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|
gptkbp:control_system
|
gptkb:FADEC
|
|
gptkbp:cooling_system
|
air-cooled
|
|
gptkbp:design
|
20,000 hours
|
|
gptkbp:diameter
|
1.5 m
|
|
gptkbp:elevation
|
up to 40,000 ft
|
|
gptkbp:emissions_standard
|
ICAO Chapter 3
|
|
gptkbp:engine
|
gptkb:advanced_technology
gptkb:JT3_D_family
Brayton cycle
commercial jets
mass produced
widely used in 1970s
|
|
gptkbp:engine_configuration
|
twin-spool
turbofan design
|
|
gptkbp:engine_power
|
reliable performance
|
|
gptkbp:engine_type
|
gptkb:JT3_D-3
gptkb:JT3_D_series
high bypass ratio
|
|
gptkbp:first_flight
|
gptkb:1963
|
|
gptkbp:fuel_capacity
|
1.5 m
3.5 m
1,200 kg
|
|
gptkbp:fuel_economy
|
high
0.8 lb/hp/hr
|
|
gptkbp:fuel_type
|
gptkb:Jet_A
|
|
gptkbp:gearbox
|
reduction gearbox
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
JT3 D-3 B
|
|
gptkbp:length
|
3.5 m
|
|
gptkbp:maintenance
|
4,000 hours
|
|
gptkbp:manufacturer
|
gptkb:Pratt_&_Whitney
|
|
gptkbp:noise_level
|
Stage 3 compliant
|
|
gptkbp:number_of_engines
|
gptkb:3
|
|
gptkbp:number_of_stages
|
gptkb:10
|
|
gptkbp:operational_history
|
used in commercial aviation
|
|
gptkbp:propulsion
|
18,500 lbf
15.4:1
|
|
gptkbp:replaced_by
|
gptkb:JT8_D
|
|
gptkbp:service_ceiling
|
45,000 ft
|
|
gptkbp:weight
|
1,200 kg
|
|
gptkbp:bfsParent
|
gptkb:Pratt_&_Whitney_JT3_D
|
|
gptkbp:bfsLayer
|
5
|