SECR Q1 class should not be confused with SR Q1 class.
| SECR Q1 class | |
| Powertype: | Steam |
| Designer: | Harry Wainwright |
| Rebuilddate: | 1903–1917 |
| Numberrebuilt: | 55 |
| Whytetype: | 0-4-4T |
| Uicclass: | B2′ n2t |
| Driverdiameter: | 5feet |
| Locoweight: | 49.6LT |
| Fueltype: | Coal |
| Boilerpressure: | 1502NaN2 |
| Cylindercount: | Two, inside |
| Cylindersize: | 18x |
| Valvegear: | Stephenson valve gear |
| Tractiveeffort: | 162742NaN2 |
| Operatorclass: | Q1 |
| Withdrawndate: | 1909–1930 |
| Numinclass: | 1 January 1923: 47 |
| Disposition: | All scrapped |
The SECR Q1 class was a class of 0-4-4T steam locomotives of the South Eastern and Chatham Railway. The class was rebuilt from older Stirling Q class locomotives by Harry Wainwright between 1903 and 1917 by fitting the boiler that had been designed for the H class 0-4-4T in 1902–03.[1] [2]
Fifty-five locomotives were rebuilt at Ashford works, retaining their previous numbers which were scattered between 12 and 423. No. 324 was renumbered 324A in 1907; this and seven others were withdrawn between 1909 and 1914 (the boilers from these being used to rebuild further Q class locomotives to Q1) leaving 47 to enter Southern Railway ownership on 1 January 1923; between 1923 and 1926 all except seven (nos. 134, 141, 344, 354, 366, 413, 419) were repainted into SR green livery and their numbers were prefixed with the letter A to denote Ashford works. Withdrawal recommenced in 1925, and all had been withdrawn by the end of 1930.
| Year | rebuilt | Numbers | withdrawn | Numbers | Total in service at end of year | |
|---|---|---|---|---|---|---|
| 1903 | 4 | 180, 184, 319, 362 | 4 | |||
| 1904 | 4 | |||||
| 1905 | 5 | 81, 134, 181, 303, 407 | 9 | |||
| 1906 | 5 | 138, 146, 304, 324, 366 | 14 | |||
| 1907 | 2 | 83, 350 | 16 | |||
| 1908 | 1 | 361 | 17 | |||
| 1909 | 2 | 355, 359 | 2 | 319, 324A | 17 | |
| 1910 | 4 | 351, 400, 404, 408 | 1 | 303 | 20 | |
| 1911 | 1 | 181 | 19 | |||
| 1912 | 11 | 12, 85, 95, 141, 200, 343, 357, 367, 406, 412, 413 | 2 | 180, 304 | 28 | |
| 1913 | 7 | 115, 168, 344, 364, 365, 403, 416 | 35 | |||
| 1914 | 9 | 50, 58, 76, 224, 347, 348, 363, 402, 420 | 2 | 184, 407 | 42 | |
| 1915 | 3 | 354, 419, 423 | 45 | |||
| 1916 | 1 | 411 | 46 | |||
| 1917 | 1 | 415 | 47 | |||
| 1918–24 | 47 | |||||
| 1925 | 3 | A224, A348, 354 | 44 | |||
| 1926 | 20 | A50, A58, A95, 134, 141, A168, A343, 344, A350, A357, A359, A363, 366, A402, A403, 413, A415, A416, 419, A423 | 24 | |||
| 1927 | 9 | A12, A76, A85, A138, A347, A351, A355, A404, A420 | 15 | |||
| 1928 | 8 | A81, A83, A115, A146, A200, A365, A406, A411 | 7 | |||
| 1929 | 5 | A361, A362, A400, A408, A412 | 2 | |||
| 1930 | 2 | A364, A367 | 0 |