page_title: George Jackson Churchward
section_title: GWR 3700 Class
hierarchical_section_title: George Jackson Churchward / Chief Mechanical Engineer / Notable locomotives / GWR 3700 Class
caption_attribution_description: Great Western Railway: "City" class, fitted with "Taper" boiler and Belpaire firebox
context_page_description: George Jackson Churchward CBE was an English railway engineer, and was chief mechanical engineer of the Great Western Railway in the United Kingdom from 1902 to 1922.
context_section_description: In September 1902, whilst still assisting Dean, Churchward had a member of the Atbara Class, no. 3405 Mauritius, reboilered with Belpaire firebox and the first use of a tapered boiler on the GWR. Once he became CME, the boiler became the prototype for Churchward's GWR Standard No. 4 boiler. This experiment led to the design of the City' class, with the first outshopped from Swindon in March 1903, No. 3433 City of Bath. It was fitted with the final form of the Standard No.4 boiler, with slightly curved sides and a tapered top to the firebox. The class soon became one of the most famous classes of locomotives in the world, when City of Truro became the first engine in the world to haul a train at 100 miles per hour in 1904 (although unauthenticated).
caption: GWR 3700 Class No. 3433 City of Bath showing tapered boiler and Belpaire firebox
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