page_title: GWR 2900 Class
section_title: No. 98
hierarchical_section_title: GWR 2900 Class / Prototypes / No. 98
caption_attribution_description: English: 2nd prototype 4-6-0 No.98 as built in 1903
context_page_description: The Great Western Railway 2900 Class or Saint Class was built by the Great Western Railway's Swindon Works. incorporated several series of 2-cylinder passenger steam locomotives designed by George Jackson Churchward and built between 1902 and 1913 with differences in the dimensions. The majority of these were built as 4-6-0 locomotives; but thirteen examples were built as 4-4-2. They proved to be a successful class which established the design principles for GWR 2-cylinder classes over the next fifty years.
context_section_description: A second prototype locomotive, No. 98, was built at Swindon Works in March 1903 (Lot 138) to a similar design but with a taper boiler, re-designed valve gear layout and cylinders and a shorter wheelbase. Valve diameters were increased from 6 ¹⁄₂ inches (170 mm) to 10 inches (250 mm). According to Poultney, these improvements "may truly be said to be the keystone of the arch upon which all modern locomotives are designed". In 1906 this locomotive was re-boilered with a 225 psi (1.55 MPa) boiler to correspond with the third prototype. This prototype locomotive was named Vanguard in 1907 (renamed Ernest Cunard in the same year). It was renumbered 2998 in 1912, received a superheated boiler in 1911 and was withdrawn in 1933.
caption: The second prototype No. 98 as built 1903
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