|
gptkbp:instance_of
|
gptkb:jet_engine
|
|
gptkbp:aircraft_type
|
gptkb:Boeing_707
gptkb:Lockheed_L-1011_Tri_Star
gptkb:Boeing_737
gptkb:Mc_Donnell_Douglas_DC-10
|
|
gptkbp:application
|
commercial aviation
|
|
gptkbp:cancellation_reason
|
high bypass ratio
|
|
gptkbp:certification
|
FAA certified
|
|
gptkbp:compressor_type
|
axial compressor
|
|
gptkbp:control_system
|
hydromechanical control
|
|
gptkbp:cooling_system
|
air-cooled
|
|
gptkbp:design
|
modular design
|
|
gptkbp:diameter
|
56 inches
|
|
gptkbp:emissions_standard
|
Stage 3
|
|
gptkbp:engine
|
air start
widely used in the 1970s and 1980s
turbofan technology
|
|
gptkbp:engine_configuration
|
twin-spool
pylon-mounted
various modifications available
2 or 3 per aircraft
|
|
gptkbp:engine_power
|
high reliability
high thrust-to-weight ratio
|
|
gptkbp:first_flight
|
gptkb:1965
|
|
gptkbp:fuel_capacity
|
12.5 feet
56 inches
3.5 feet
|
|
gptkbp:fuel_economy
|
moderate
|
|
gptkbp:fuel_type
|
gptkb:Jet_A
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
JT8 D series
|
|
gptkbp:impact
|
significant impact on aviation industry
|
|
gptkbp:maintenance
|
3,000 hours
easy maintenance
|
|
gptkbp:manufacturer
|
gptkb:Pratt_&_Whitney
|
|
gptkbp:noise_level
|
low noise level
|
|
gptkbp:notable_users
|
gptkb:Delta_Air_Lines
gptkb:United_Airlines
gptkb:Eastern_Air_Lines
|
|
gptkbp:number_of_engines
|
two or three
|
|
gptkbp:operational_period
|
commercial flights
|
|
gptkbp:operational_status
|
retired from service
|
|
gptkbp:produces
|
over 14,000 engines
|
|
gptkbp:propulsion
|
14,000 to 18,500 lbf
|
|
gptkbp:service
|
up to 20,000 hours
|
|
gptkbp:successor
|
gptkb:JT8_D-200
|
|
gptkbp:thrust_reverser_type
|
cascade thrust reverser
|
|
gptkbp:turbine_type
|
high-pressure turbine
|
|
gptkbp:type
|
gptkb:turbofan_engine
|
|
gptkbp:used_in
|
gptkb:Boeing_727
|
|
gptkbp:weight
|
3,000 lb
|
|
gptkbp:bfsParent
|
gptkb:JT8_D_engine_family
|
|
gptkbp:bfsLayer
|
7
|