About: Southern Pacific class AC-4

An Entity of Type: mean of transportation, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org

Southern Pacific Railroad's AC-4 (meaning Articulated Consolidation) class of steam locomotives was the first class of 4-8-8-2 cab forward locomotives. They were intended to improve on the railroad's MC (Mallet-Consolidation) class 2-8-8-2 locomotives with a larger firebox, hence, the four-wheel leading truck (instead of the two-wheel). The AC-4s were removed from service starting in 1953, and all ten were scrapped by June 1955.

Property	Value
dbo:abstract	Southern Pacific Railroad's AC-4 (meaning Articulated Consolidation) class of steam locomotives was the first class of 4-8-8-2 cab forward locomotives. They were intended to improve on the railroad's MC (Mallet-Consolidation) class 2-8-8-2 locomotives with a larger firebox, hence, the four-wheel leading truck (instead of the two-wheel). The AC-4s were the first SP Mallets built for simple expansion. Baldwin Locomotive Works built them in August through October 1928 with a maximum cutoff of 70%, so tractive effort was rated at 112,760 lbf (501.6 kN); a few years later, limited cutoff was dropped and calculated tractive effort increased to 116,000 lbf (520 kN). The AC-4s were removed from service starting in 1953, and all ten were scrapped by June 1955. (en)
dbo:activeYearsEndYear	1928-01-01 (xsd:gYear)
dbo:activeYearsStartYear	1928-01-01 (xsd:gYear)
dbo:builder	dbr:Baldwin_Locomotive_Works
dbo:thumbnail	wiki-commons:Special:FilePath/Southern_Pacific_forw..._mallet_locomotive_4100.jpg?width=300
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dbo:wikiPageRevisionID	1021123930 (xsd:integer)
dbo:wikiPageWikiLink	dbr:Bore_(engine) dbc:Baldwin_locomotives dbr:Steam_locomotive dbr:Stroke_(engine) dbr:Baldwin_Locomotive_Works dbr:4-8-8-2 dbc:4-8-8-2_locomotives dbc:Simple_articulated_locomotives dbc:Standard_gauge_locomotives_of_the_United_States dbr:Firebox_(steam_engine) dbc:Cab_forward_steam_locomotives dbr:2-8-8-2 dbc:Freight_locomotives dbc:Scrapped_locomotives dbc:Steam_locomotives_of_the_United_States dbc:Southern_Pacific_Railroad_locomotives dbc:Railway_locomotives_introduced_in_1928 dbr:Cab_forward dbr:Southern_Pacific_Railroad
dbp:builddate	August–October 1928 (en)
dbp:builder	dbr:Baldwin_Locomotive_Works
dbp:caption	Southern Pacific 4100 and its crew (en)
dbp:disposition	All scrapped (en)
dbp:feedwaterheater	4 (xsd:integer)
dbp:firstrundate	October 1928 (en)
dbp:fleetnumbers	4100 (xsd:integer)
dbp:name	Southern Pacific class AC-4 (en)
dbp:numinclass	10 (xsd:integer)
dbp:operator	dbr:Southern_Pacific_Railroad
dbp:operatorclass	AC-4 (en)
dbp:powertype	Steam (en)
dbp:serialnumber	605756057660623 (xsd:decimal)
dbp:tractiveeffort	, rebuilt (en)
dbp:whytetype	4 (xsd:integer)
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dbp:wordnet_type	http://www.w3.org/2006/03/wn/wn20/instances/synset-locomotive-noun-1
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gold:hypernym	dbr:Class
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rdfs:comment	Southern Pacific Railroad's AC-4 (meaning Articulated Consolidation) class of steam locomotives was the first class of 4-8-8-2 cab forward locomotives. They were intended to improve on the railroad's MC (Mallet-Consolidation) class 2-8-8-2 locomotives with a larger firebox, hence, the four-wheel leading truck (instead of the two-wheel). The AC-4s were removed from service starting in 1953, and all ten were scrapped by June 1955. (en)
rdfs:label	Southern Pacific class AC-4 (en)
owl:sameAs	freebase:Southern Pacific class AC-4 yago-res:Southern Pacific class AC-4 wikidata:Southern Pacific class AC-4 https://global.dbpedia.org/id/4vrM2
prov:wasDerivedFrom	wikipedia-en:Southern_Pacific_class_AC-4?oldid=1021123930&ns=0
foaf:depiction	wiki-commons:Special:FilePath/Southern_Pacific_forward_cab_mallet_locomotive_4100.jpg
foaf:isPrimaryTopicOf	wikipedia-en:Southern_Pacific_class_AC-4
foaf:name	Southern Pacific class AC-4 (en)
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