700 class – Superheated SECR B1 class SECR D class as D1 class SECR O class – rebuilt as O1 class SECR N class – Further production SECR N1 class – Three-cylinder derivative of N class LB&SCR C2 class LB&SCR L class 4-6-4T – rebuilt as 4–6–0 SR N15X class LB&SCR E1 class 0-6-0T – rebuilt as 0-6-2T SR E1/R class LB&SCR I1 class – rebuilt as I1X class O.V.S. Bulleid (1937–1949) Bulleid was also responsible for the mechanical part of the three electric locomotives (CC1–CC3, later British Railways Class 70) built at Ashford Works in 1941 (CC1) and 1948 (CC2, CC3). The electrical part was the responsibility of the Southern Railway's Chief Electrical Engineer, Alfred Raworth. Bulleid also designed a 500 hp 0-6-0 diesel mechanical shunter powered by a Davey Paxman power unit. This was built at Ashford Works, though was not introduced until 1950, when it emerged as BR No. 11001. Locomotives of constituent companies London and South Western Railway John Viret Gooch (1841–1851) Joseph Hamilton Beattie (1850–1871) William George Beattie (1871–1878) William Adams (1878–1895) Dugald Drummond (1895–1912) Robert W. Urie (1912–1922) South Eastern Railway Benjamin Cubitt (1842-1845) No SER locomotives built – stock administered by the London and Croydon, South Eastern, and London and Brighton Joint Locomotive Committee. James Cudworth (1845-1876) White Horse of Kent, 2-2-2, introduced 1845, later rebuilt as a 2-4-0 SER 118 class 0-6-0 introduced 1855 SER 59 class 2-4-0 introduced 1857 SER Singles 2-2-2 introduced 1861 SER 235 class 0-4-4T introduced 1866 John Ramsbottom (1876) SER Ironclads 2-4-0 introduced 1876 A. M. Watkin (1876) SER 152 class 'Folkestone Tanks' 0-6-0T introduced 1877 Richard Mansell (1877-1878) SER 58 class 'Mansell Gunboats' 0-4-4T introduced 1878 SER 59 class 'Mansell Goods' 0-6-0 introduced 1879 James Stirling (1878-1898) Stirling, like his brother Patrick, built engines with domeless boilers. Many, however, were rebuilt with domes in later years. London, Chatham and Dover Railway Initially, LC&DR engines were given names, they only received numbers after 1874. On the merger with the South Eastern in 1898, engine numbers were increased by 459, this being the highest number in use on that line. Joseph Cubitt and Thomas Russell Crampton (1853–1860) Surplus and secondhand acquisitions (1860–1861) William Martley (1860–1874) William Kirtley (1874–1898) South Eastern and Chatham Railway Before 1899, both the South Eastern Railway and the London, Chatham and Dover Railway had some Crampton locomotives built by Robert Stephenson and Company. The