|
gptkbp:instance_of
|
gptkb:jet_engine
|
|
gptkbp:aircraft_operated
|
gptkb:Mc_Donnell_F-4_Phantom_II
|
|
gptkbp:application
|
gptkb:military_aircraft
|
|
gptkbp:armament
|
gptkb:20
|
|
gptkbp:combustor_type
|
annular
axial flow
|
|
gptkbp:compression_ratio
|
6.5:1
|
|
gptkbp:compressor_type
|
axial
|
|
gptkbp:control_system
|
hydraulic
hydromechanical
|
|
gptkbp:cooling_system
|
air-cooled
|
|
gptkbp:design_date
|
gptkb:Cold_War
|
|
gptkbp:diameter
|
3 ft 4 in
|
|
gptkbp:engine
|
gptkb:military_aircraft
gptkb:Pratt_&_Whitney_J57
fighter jets
developed in the 1950s
air start
used in various aircraft models
early jet technology
turbojet technology
advanced jet propulsion technology
used in many aircraft designs
|
|
gptkbp:engine_configuration
|
turbojet
upgraded versions available
upgraded versions
single spool
|
|
gptkbp:engine_cooling_system
|
air-cooled system
|
|
gptkbp:engine_history
|
part of Cold War aviation
|
|
gptkbp:engine_legacy_influence
|
legacy in military aviation.
|
|
gptkbp:engine_power
|
high reliability
reliable performance
high thrust-to-weight ratio
moderate efficiency
proven reliability
5,000 lbf thrust
overhaul required every 1,500 hours
|
|
gptkbp:engine_technology_influence
|
influenced future jet engine designs
|
|
gptkbp:engine_thrust
|
22.2 k N
|
|
gptkbp:engine_thrust_to_weight_ratio
|
2.78
|
|
gptkbp:engine_type
|
turbojet
J52-P-6 A
J52-P-8 A
J52-P-8 B
|
|
gptkbp:first_flight
|
gptkb:1954
|
|
gptkbp:fuel_capacity
|
150 inches
40 inches
3.81 m
544 kg
1.02 m
|
|
gptkbp:fuel_economy
|
0.8 lb/hp/hr
average fuel efficiency
|
|
gptkbp:fuel_type
|
gptkb:Jet_A
JP-4
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Pratt & Whitney J52
|
|
gptkbp:ignition_system
|
gptkb:spark_plug
|
|
gptkbp:impact
|
significant impact on military aviation.
|
|
gptkbp:introduced
|
gptkb:1954
|
|
gptkbp:length
|
12 ft 6 in
|
|
gptkbp:maintenance
|
periodic inspections
|
|
gptkbp:manufacturer
|
gptkb:Pratt_&_Whitney
|
|
gptkbp:max_speed
|
Mach 0.9
|
|
gptkbp:noise_level
|
high noise level
|
|
gptkbp:notable_users
|
gptkb:United_States_Navy
|
|
gptkbp:number_of_engines
|
gptkb:1
|
|
gptkbp:operational_range
|
2000 miles
high subsonic speeds
|
|
gptkbp:operational_use
|
gptkb:military_aircraft
|
|
gptkbp:power_output
|
3700 k W
|
|
gptkbp:produces
|
over 10,000
|
|
gptkbp:propulsion
|
5000 lbf
|
|
gptkbp:retired
|
gptkb:1980s
|
|
gptkbp:service_ceiling
|
40,000 ft
|
|
gptkbp:service_history
|
used in various naval aircraft
|
|
gptkbp:successor
|
gptkb:Pratt_&_Whitney_J75
|
|
gptkbp:turbine_type
|
single spool
|
|
gptkbp:type
|
gptkb:turbofan_engine
|
|
gptkbp:used_in
|
gptkb:Douglas_A-4_Skyhawk
|
|
gptkbp:variant
|
J52-P-6 A
J52-P-8 A
|
|
gptkbp:weight
|
1,800 lb
1200 lb
|
|
gptkbp:bfsParent
|
gptkb:Douglas_A-4_Skyhawk
gptkb:A-7_Corsair_II
gptkb:Grumman_A-6_Intruder
gptkb:A-6_Intruder
gptkb:EA-6_B_Prowler
gptkb:S-3_Viking
gptkb:Mc_Donnell_Douglas_A-4_Skyhawk
|
|
gptkbp:bfsLayer
|
5
|