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| GER-Klasse D27 | |
|---|---|
 GER 1000, the first of the 1893 batch
| |
| Nummerierung: | siehe Text |
| Anzahl: | 21 |
| Hersteller: | Stratford Works |
| Baujahr(e): | 1889–1893 |
| Ausmusterung: | 1901–1907 |
| Achsformel: | 1A1 (2-2-2) |
| Bauart: | 1A1 n2 |
| Spurweite: | 1435 mm (Normalspur) |
| Dienstmasse: | 57,3 t (126.300 lb oder 56 long tons 8 cwt) |
| Anfahrzugkraft: | 82,83 kN (18.620 lbf) |
| Kuppelraddurchmesser: | 1.384 mm (4 ft 6 1⁄2 in) |
| Treibraddurchmesser: | 2.134 mm (7 ft 0 in) |
| Laufraddurchmesser vorn: | 1.219 mm (4 ft 0 in) |
| Laufraddurchmesser hinten: | 1.219 mm (4 ft 0 in)[1] |
| Steuerungsart: | Stephenson |
| Zylinderanzahl: | 2, innenliegend |
| Zylinderdurchmesser: | 444 mm (17,5 in) |
| Kolbenhub: | 660 mm (26 in) |
| Kesselüberdruck: | 1,03 MPa (150 lbf/in²) |
| Wasservorrat: | 6,354526 m³ (1.400 imperiale Gallonen)[1] |
| Brennstoffvorrat: | 2,032093818 t (2 long tons) Kohle[1] |
| Antrieb: | Dampf |
4 ft 8 1⁄2 in
The GER Class D27 was a class of 2-2-2 steam tender locomotives designed by James Holden for the Great Eastern Railway.
History
In 1888 Holden experimented by removing the side rods of T19 No. 721 to form a 2-2-2.[2] In 1889 the first of a new class appeared: initially No. 740 (later 789 and 780) which had been built on a 'Locomotive and Machinery' account. This was followed by two batches of ten on the more normal 'Letter' account.[3] in 1893. They were built with Vorlage:Convert[4] inside cylinders powered by a Vorlage:Convert boiler. They were later rebuilt with Vorlage:Convert and Vorlage:Convert boilers.[3]
| Year | Order no. | Manufacturer | Quantity | GER Nos. | Notes |
|---|---|---|---|---|---|
| 1889 | LM68 | Stratford Works | 1 | 740 | Renumbered 789, then 780 |
| 1891 | D27 | Stratford Works | 10 | 770–779 | |
| 1893 | F32 | Stratford Works | 10 | 1000–1009 |
One of their main spheres was on the Joint Line working expresses to York. In 1896 the class inaugurated the epic making non-stop run to North Walsham using oil-firing. Rous-Martin[5] found that the singles climbed Brentwood Bank more rapidly than the 2-4-0s. See also Ahrons (1951).
Nine locomotives were withdrawn between 1901 and 1903. The surviving eight locomotives in the 770-series were transferred to the duplicate list in July 1904, and had their number prefixed with a "0". The remaining fourteen were withdrawn between 1904 and 1907.[6]
| Year | Quantity in service at start of year |
Quantity withdrawn |
Locomotive numbers |
|---|---|---|---|
| 1901 | 21 | 4 | 1000, 1002, 1005, 1007 |
| 1902 | 17 | 3 | 773, 1001, 1003 |
| 1903 | 14 | 2 | 1008, 1009 |
| 1904 | 12 | 4 | 775, 0771, 1004, 1006 |
| 1905 | 8 | 4 | 0772, 0774, 0777, 0780 |
| 1906 | 4 | 1 | 0770 |
| 1907 | 3 | 3 | 0776, 0778, 0779 |
Literatur
- E. L. Ahrons: Asher, L. L. (Hrsg.): Locomotive and train working in the latter part of the nineteenth century. (Volume 1). Heffer, Cambridge 1951.
- C. Langley Aldrich: The Locomotives of the Great Eastern Railway 1862–1962, 7th. Auflage, C. Langley Aldrich, Wickford, Essex 1969, OCLC 30278831.
- C. J. Allen: The Great Eastern Railway, 3rd edition, 3rd. Auflage, Ian Allan, London 1961.
- C. Rous-Marten: British express engines. Int. Rly Congress, 1898a.
- C. Rous-Marten: . In: Railway Magazine. 11, 1902, S. 272.
Einzelnachweise
- ↑ a b c http://www.taffvalerailway28.co.uk/28-in-Profile/
- ↑ Vorlage:Harvnb
- ↑ a b c Vorlage:Harvnb
- ↑ Vorlage:Harvnb
- ↑ Rous-Marten 1898a
- ↑ a b Vorlage:Harvnb
External links
- J. Holden locomotives – Great Eastern Railway Society
Vorlage:Great Eastern Railway locomotives
D27 Category:2-2-2 locomotives Category:Railway locomotives introduced in 1889 Category:Standard gauge steam locomotives of Great Britain Category:Scrapped locomotives
