Editing Train (section)

== Unpowered rail vehicles ==
{{Main|Railroad car}}
[[File:BNSF_Railway_Classification_Yard,_South_of_Galesburg,_IL_(3).jpg|thumb|Various types of railroad cars in a [[classification yard]] in the United States]]
Railroad cars, also known in {{abbr|CwthE|Commonwealth English}}  as wagons, are unpowered rail vehicles which are typically pulled by locomotives. Many different types exist, specialized to handle various types of cargo. Some common types include [[boxcar]]s (CwthE: [[covered goods wagon]]s) that carry a wide variety of cargo, [[flatcar]]s (CwthE:  [[flat wagon]]s) which have flat tops to hold cargo, [[hopper car]]s which carry bulk commodities, and [[tank car]]s which carry liquids and gases. Examples of more specialized types of train cars include [[Ladle transfer car|bottle cars]] which hold molten steel,<ref name="Schafer1999">{{Cite book|last=Schafer|first=Mike|url=https://www.worldcat.org/oclc/41002704|title=Freight train cars|date=1999|publisher=MBI Pub|others=Mike McBride|isbn=0-7603-0612-5|location=Osceola, Wis.|pages=11–13, 93, 95|oclc=41002704}}</ref> [[Schnabel car]]s which handle very heavy loads, and [[refrigerator car]]s which carry perishable goods.<ref>{{Cite web|title=Rail Car Types Defined|url=http://www.up.com/up/customers/track-record/tr181121_rail_car_types.htm|access-date=2021-11-05|website=www.up.com|language=en}}</ref><ref>{{Cite web|last=Vantuono|first=William C.|date=2012-06-14|title=Kasgro builds "World's Largest Railroad Car"|url=https://www.railwayage.com/mechanical/freight-cars/kasgro-builds-worlds-largest-railroad-car/|access-date=2021-11-05|website=Railway Age|language=en-US}}</ref>

Early train cars were small and light, much like early locomotives, but over time they have become larger as locomotives have become more powerful.<ref name="Schafer1999" />