page_title: Locomotive frame
hierarchical_section_title: Locomotive frame
caption_attribution_description: Four stages in the construction of a 'Pacific' locomotive at Doncaster Works The Frames in Position. Photo: LNER
context_page_description: A locomotive frame is the structure that forms the backbone of the railway locomotive, giving it strength and supporting the superstructure elements such as a cab, boiler or bodywork. The vast majority of locomotives have had a frame structure of some kind. The frame may in turn be supported by axles directly attached to it, or it may be mounted on bogies / trucks, or a combination of the two. The bogies in turn will have frames of their own.
context_section_description: A locomotive frame is the structure that forms the backbone of the railway locomotive, giving it strength and supporting the superstructure elements such as a cab, boiler or bodywork.  The vast majority of locomotives have had a frame structure of some kind. The frame may in turn be supported by axles directly attached to it, or it may be mounted on bogies (UK) / trucks (US), or a combination of the two.  The bogies in turn will have frames of their own.
caption: Locomotive frame of a LNER Gresley pacific locomotive during construction
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