| SECR E class | |
|---|---|
| Power type | Steam |
| Designer | Harry Wainwright |
| Builder | Ashford Works |
| Build date | 1906–1908 |
| Total produced | 26 |
| Configuration | 4-4-0 |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Leading wheel diameter |
3 ft 6 in (1.067 m) |
| Driver diameter | 6 ft 6 in (1.981 m) |
| Length | 55 ft 3 in (16.840 m) |
| Locomotive weight | 52 tons 5 cwt (110,000 lb / 51 tonnes) |
| Fuel type | Coal |
| Boiler pressure | 175 psi (1.21 MPa) |
| Cylinders | Two, inside |
| Cylinder size | 19 × 26 in (483 × 660 mm) |
| Career | South Eastern and Chatham Railway, Southern Railway, British Railways |
| Class | E |
| Retired | 1944–1956 (E) 1949–1961 (E1) |
| Disposition | 11 rebuilt to E1 class all later scrapped none preserved |
The SECR E class was a class of 4-4-0 tender locomotives designed by Harry Wainwright for express passenger trains on the South Eastern and Chatham Railway. It was a larger version of the D class incorporating a Belpaire firebox
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Following the success of his D class 4-4-0 design, Wainwright obtained authority to build a further five similar locomotives incorporating a Belpaire firebox to provide additional power. These were built at Ashford railway works during the last few months of 1905 and entered traffic early in 1906.[1] Once the design had proved to be successful, further orders were placed until 26 had been constructed at Ashford by April 1909. In 1911 and 1912 two examples of the class received boilers with superheaters, which significantly improved their fuel efficiency, but unfortunately the additional weight prevented them from working over the lines of the former London Chatham and Dover Railway (LCDR) and so no further examples were so treated.[2]
In 1917 the SECR Board decided that when the London to Dover and Folkestone boat trains were reinstated after the war, they would be centred on London Victoria railway station, using the LCDR lines. This created a serious problem of producing a locomotive with sufficient power but with an acceptable axle load. Richard Maunsell therefore ordered the rebuilding one example with a larger cylinders, boiler and firebox, whilst at the same time reducing unnecessary weight elsewhere in the locomotive. This work was largely undertaken by his Chief Locomotive Draughtsman James Clayton. The experimental rebuilding was implemented following the Armistice in November 1918 and proved to be successful. A further ten examples were rebuilt by Beyer, Peacock and Company during 1919 and 1920,[3], and ten more in 1921, although at the last minute ten further D class locomotives were rebuilt instead.[4]
The class was used on the London to Dover and Folkestone boat trains and other Kent coast expresses on the South Eastern Main Line. After 1914 they were replaced on the heaviest express trains by the L class 4-4-0 on the lines of the former South Eastern Railway but they remained the heaviest locomotives allowed on the LCDR lines until the rebuilt locomotives took over. Thereafter the remaining members of the class were employed on the secondary express trains on these lines.
In the years immediately following the grouping of the SECR with other railways to form the Southern Railway (UK) in 1923 the E class locomotives continued with their existing duties, but in 1931 three examples were transferred to the Central Section to assist with expresses on the Brighton Main Line, followed by further examples. During the Second World War they were also regularly employed on the line between Redhill and Reading.
The E1 class was replaced on the heaviest boat trains in the mid 1920s by the LSWR N15 class 4-6-0 locomotives. For a while they were used on expresses to Ramsgate but in the 1930s several of the class were transferred to the former London Brighton and South Coast Railway main lines in Sussex.
The majority of the remaining E class locomotives were withdrawn during 1951 but one lasted until May 1955. The E1 rebuilds were withdrawn over a far longer period between May 1949 and November 1961, with three examples lasting until the 1960s. No examples have been preserved.
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