|
gptkbp:instance_of
|
gptkb:engine
|
|
gptkbp:bfsLayer
|
5
|
|
gptkbp:bfsParent
|
gptkb:Vickers_Vimy
gptkb:Curtiss_NC-4
gptkb:De_Havilland_DH.4
gptkb:De_Haviland_DH.4
gptkb:Medium_Mark_III_tank
gptkb:Medium_Mark_VIII_tank
|
|
gptkbp:application
|
gptkb:aircraft
|
|
gptkbp:bore
|
5.5 in
|
|
gptkbp:compression_ratio
|
5.2:1
|
|
gptkbp:cooling_system
|
liquid cooling
liquid-cooled
|
|
gptkbp:displacement
|
12.0 L
|
|
gptkbp:engine
|
gptkb:12
gptkb:Liberty_engine_series
V engine
high reliability
air-cooled
1800 RPM
V-type engine
high altitude performance
V12 layout
influenced future aircraft engines
pioneering aircraft engine technology
|
|
gptkbp:engine_type
|
reciprocating engine
|
|
gptkbp:famous_for
|
World War I aviation
|
|
gptkbp:first_flight
|
gptkb:1917
|
|
gptkbp:fuel_capacity
|
0.9 m
1.5 m
0.8 m
181 kg
0.4 lb/hp/hr
|
|
gptkbp:fuel_type
|
gptkb:product
aviation gasoline
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Liberty L-12
|
|
gptkbp:ignition_system
|
magneto ignition
|
|
gptkbp:is_used_by
|
gptkb:US_Army_Air_Service
|
|
gptkbp:maintenance
|
moderate maintenance
|
|
gptkbp:manufacturer
|
gptkb:Liberty_Motor_Company
|
|
gptkbp:notable_users
|
gptkb:Curtiss_JN-4
|
|
gptkbp:origin
|
gptkb:United_States
|
|
gptkbp:power_output
|
400 hp
|
|
gptkbp:production_years
|
1917-1920
|
|
gptkbp:propulsion
|
1.0 hp/lb
|
|
gptkbp:related_to
|
gptkb:Liberty_L-8
|
|
gptkbp:replaced_by
|
gptkb:Packard_V-1650
|
|
gptkbp:stroke
|
6.0 in
|
|
gptkbp:successor
|
gptkb:Wright_R-1820
|
|
gptkbp:torque
|
200 lb-ft
pressure lubrication
|
|
gptkbp:type
|
gptkb:engine
|
|
gptkbp:used_in
|
gptkb:aircraft
|
|
gptkbp:valve_configuration
|
overhead valve
|
|
gptkbp:weight
|
400 lb
|