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gptkbp:instance_of
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gptkb:jet_engine
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gptkbp:application
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commercial aviation
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gptkbp:certification
|
FAA certified
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gptkbp:combustor_type
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annular
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gptkbp:compressor_type
|
axial
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gptkbp:control_system
|
hydromechanical
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gptkbp:cooling_system
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air-cooled
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gptkbp:customer_support
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gptkb:Eastern_Air_Lines
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gptkbp:diameter
|
3.0 ft
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gptkbp:engine
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gptkb:JT8_D-9
modular design
advanced materials
widely used in 1970s
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gptkbp:engine_configuration
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twin-engine
pylon-mounted
upgraded versions available
1 of 2
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gptkbp:engine_legacy_systems
|
compatible with older aircraft
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gptkbp:engine_power
|
high reliability
long service life
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gptkbp:engine_starting_method
|
bleed air
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gptkbp:engine_type
|
gptkb:Boeing_707
gptkb:JT8_D-15
high bypass ratio
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gptkbp:first_flight
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gptkb:1963
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gptkbp:fuel_control_system
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gptkb:electronic
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gptkbp:fuel_economy
|
0.5 lb/lbf/hr
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gptkbp:fuel_type
|
gptkb:Jet_A
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
JT8 D-11
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gptkbp:impact
|
significant in aviation history
|
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gptkbp:length
|
4.5 ft
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gptkbp:maintenance
|
scheduled maintenance
4,000 hours
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gptkbp:manufacturer
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gptkb:Pratt_&_Whitney
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gptkbp:noise_level
|
Stage 3 compliant
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gptkbp:number_of_stages
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gptkb:5
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gptkbp:operational_period
|
intermittent
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gptkbp:operational_range
|
0 to 30,000 ft
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gptkbp:produces
|
over 14,000 units
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gptkbp:propulsion
|
18,500 lbf
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gptkbp:related_aircraft
|
gptkb:Boeing_737
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gptkbp:successor
|
gptkb:JT8_D-17
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gptkbp:thrust_reverser
|
cascade type
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gptkbp:turbine_type
|
axial
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gptkbp:type
|
gptkb:turbofan_engine
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gptkbp:used_in
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gptkb:Boeing_727
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gptkbp:weight
|
1,200 lb
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gptkbp:bfsParent
|
gptkb:JT8_D-17
gptkb:JT8_D-7
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gptkbp:bfsLayer
|
7
|