About: Liberty L-4

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Created in 1917, the Liberty L-4 was a four-cylinder water-cooled inline aircraft engine developed in the United States during World War I. The Liberty L-4 was an experimental engine of 102 hp (76 kW), which was built by the Hudson Motor Car Company and primarily intended for use in training airplanes. Only two examples were produced, since other types of engines were available and already in production. While the engine was ground-tested, it is unknown if the L-4 was ever test-flown.The L-4 was created as part of a US aircraft engine development effort which also created the six-cylinder Liberty L-6, eight-cylinder Liberty L-8 and twelve-cylinder Liberty L-12.

Property	Value
dbo:abstract	Created in 1917, the Liberty L-4 was a four-cylinder water-cooled inline aircraft engine developed in the United States during World War I. The Liberty L-4 was an experimental engine of 102 hp (76 kW), which was built by the Hudson Motor Car Company and primarily intended for use in training airplanes. Only two examples were produced, since other types of engines were available and already in production. While the engine was ground-tested, it is unknown if the L-4 was ever test-flown.The L-4 was created as part of a US aircraft engine development effort which also created the six-cylinder Liberty L-6, eight-cylinder Liberty L-8 and twelve-cylinder Liberty L-12. (en)
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dbo:wikiPageExternalLink	https://web.archive.org/web/20130330023607/http:/www.nationalmuseum.af.mil/factsheets/factsheet.asp%3Fid=835
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dbp:bore	5 (xsd:integer)
dbp:coolingsystem	Water-cooled (en)
dbp:designer	Jesse G. Vincent and Elbert J. Hall (en)
dbp:displacement	549.8
dbp:firstRun	1917 (xsd:integer)
dbp:lists	*List of aircraft engines (en)
dbp:manufacturer	dbr:Hudson_Motor_Car_Company
dbp:nationalOrigin	United States (en)
dbp:numberBuilt	2 (xsd:integer)
dbp:power	102.0
dbp:stroke	7 (xsd:integer)
dbp:type	dbr:Aircraft_engine dbr:Reciprocating_engine Four-cylinder inline piston engine (en)
dbp:variantsWithTheirOwnArticles	dbr:Liberty_L-6 dbr:Liberty_L-12 dbr:Liberty_L-8
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dcterms:subject	dbc:Abandoned_military_aircraft_engine_projects_of_the_United_States dbc:Hudson_Motor_Car_Company dbc:1910s_aircraft_piston_engines
gold:hypernym	dbr:Engine
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rdfs:comment	Created in 1917, the Liberty L-4 was a four-cylinder water-cooled inline aircraft engine developed in the United States during World War I. The Liberty L-4 was an experimental engine of 102 hp (76 kW), which was built by the Hudson Motor Car Company and primarily intended for use in training airplanes. Only two examples were produced, since other types of engines were available and already in production. While the engine was ground-tested, it is unknown if the L-4 was ever test-flown.The L-4 was created as part of a US aircraft engine development effort which also created the six-cylinder Liberty L-6, eight-cylinder Liberty L-8 and twelve-cylinder Liberty L-12. (en)
rdfs:label	Liberty L-4 (en)
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