page_title: Garratt
hierarchical_section_title: Garratt
caption_attribution_description: English: A Garratt locomotive, ex-SAR type NGG16 at Rhd Ddu station of the Welsh Highland Railway. This railway (like the Ffestiniog) uses articulated locos because of the tight turns on the line
context_page_description: A Garratt is a type of steam locomotive that is articulated into three parts. Its boiler is mounted on the centre frame, and two steam engine units are mounted on separate frames, one on each end of the boiler.
  Articulation permits larger locomotives to negotiate curves and lighter rails that might restrict large rigid-framed locomotives. Garratt locomotives effectively doubled the power of the largest conventional locomotives operating on a railway, thus reducing the need for multiple locomotives and crews.
context_section_description: A Garratt (often referred to as a Beyer Garratt) is a type of steam locomotive that is articulated into three parts. Its boiler is mounted on the centre frame, and two steam engine units are mounted on separate frames, one on each end of the boiler. 
  Articulation permits larger locomotives to negotiate curves and lighter rails that might restrict large rigid-framed locomotives. Garratt locomotives effectively doubled the power of the largest conventional locomotives operating on a railway, thus reducing the need for multiple locomotives and crews.
caption: South African Railways 2 ft (610 mm) gauge SAR NGG 16 Class Garratt, preserved in operating condition on the Welsh Highland Railway
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