They had two low-pressure cylinders fitted between the frames, and two high-pressure cylinders outside. The low-pressure cylinders drove the front driving wheels while the high-pressure cylinders drove the rear driving wheels.[3] An external steam pipe was mounted just in front of the dome, looking similar in appearance to a top feed. In 1907 No. 104 was fitted with an unsuperheated Swindon No. 1 boiler,[6]President itself being similarly reboilered in February 1910 and receiving a superheated boiler in January 1914.[7] In 1926, the three locomotives were based at Oxford shed.[8] In practice, they did not provide any significant improvement in either performance or economy compared to No 171 Albion, Churchward's prototype 4-6-0, which was converted to a 4-4-2 specifically for comparison with the French locomotives.[9]
↑ Foster, Richard (November 2007). "Churchward: The man and his machines". Steam Railway (342). Peterborough: EMAP Ltd: 66–72.
Bibliography
Allcock, N. J.; Davies, F. K.; le Fleming, H. M.; Maskelyne, J. N.; Reed, P. J. T.; Tabor, F. J. (1968) [1951]. White, D. E. (ed.). The Locomotives of the Great Western Railway, part one: Preliminary Survey. Kenilworth: RCTS.
Nock, O.S. (1975). The Pre-grouping Scene, No.1: The Great Western. Surrey: Ian Allan. ISBN0-7110-0586-9.
Rogers, H.C.B. (1975). G.J. Churchward: a Locomotive Biography. London: George Allen & Unwin. ISBN0-04-385061-8.
le Fleming, H.M. (November 1960). White, D.E. (ed.). The Locomotives of the Great Western Railway, part eight: Modern Passenger Classes (2nded.). RCTS.
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