|
gptkbp:instance_of
|
gptkb:jet_engine
|
|
gptkbp:aircraft_operated
|
gptkb:Martin_Mars
gptkb:Boeing_377_Stratocruiser
gptkb:Douglas_DC-7
|
|
gptkbp:compression_ratio
|
6.5:1
|
|
gptkbp:configuration
|
W-configuration
|
|
gptkbp:cooling_system
|
air-cooled
air-cooled engine
air-cooled radial
|
|
gptkbp:displacement
|
4360 cubic inches
|
|
gptkbp:engine
|
gptkb:transport_aircraft
gptkb:aircraft
gptkb:military_aircraft
gptkb:Pratt_&_Whitney_R-4000
military and civilian aircraft
various aircraft types
bombers
over 10,000 units
seaplanes
strategic bombers
civil aircraft
large aircraft
heavy bombers
single-speed supercharger
long-range bombers
historical significance in aviation
flying boats
commercial transport aircraft
optional turbocharger available
|
|
gptkbp:engine_configuration
|
gptkb:W-28_radial_engine
horizontally opposed
aircraft propulsion
radial configuration
W-28
|
|
gptkbp:engine_power
|
high reliability
excellent performance at altitude
|
|
gptkbp:engine_type
|
piston engine
reciprocating engine
|
|
gptkbp:first_flight
|
gptkb:1944
1947
|
|
gptkbp:fuel_capacity
|
6 ft 8 in
3 ft 6 in
3.5 feet
4 ft 6 in
6.5 feet
4.5 feet
|
|
gptkbp:fuel_economy
|
high fuel consumption
|
|
gptkbp:fuel_type
|
aviation gasoline
carbureted
carbureted fuel system
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Pratt & Whitney R-4360
|
|
gptkbp:ignition_system
|
dual ignition
|
|
gptkbp:maintenance
|
requires regular maintenance
|
|
gptkbp:manufacturer
|
gptkb:Pratt_&_Whitney
|
|
gptkbp:max_speed
|
2800 RPM
|
|
gptkbp:noise_level
|
notable noise level
significant vibration
|
|
gptkbp:notable_feature
|
four rows of seven cylinders
|
|
gptkbp:number_of_engines
|
gptkb:28
four-row
|
|
gptkbp:original_run
|
1946
|
|
gptkbp:power_output
|
3000 hp
3000 horsepower
|
|
gptkbp:production_years
|
1944-1955
1947-1966
|
|
gptkbp:propulsion
|
3,000 lb
|
|
gptkbp:successor
|
gptkb:Pratt_&_Whitney_R-2800
|
|
gptkbp:torque
|
high torque output
|
|
gptkbp:type
|
gptkb:radial_engine
|
|
gptkbp:used_in
|
gptkb:Boeing_B-17_Flying_Fortress
gptkb:Lockheed_Constellation
gptkb:Douglas_DC-7
gptkb:Convair_B-36_Peacemaker
|
|
gptkbp:valve_configuration
|
pushrod actuated
|
|
gptkbp:weight
|
1,600 lb
1,800 pounds
|
|
gptkbp:bfsParent
|
gptkb:Wright_R-3350_Duplex-Cyclone
gptkb:Boeing_B-50_Superfortress
gptkb:C-124_Globemaster
gptkb:Pratt_&_Whitney_R-2800
gptkb:C-119_G
|
|
gptkbp:bfsLayer
|
5
|