GER Class T18
|GER Class T18
LNER Class J66
Class T18 locomotive No. 275
|UIC classification||C n2t|
|Gauge||4 ft 8 1⁄2 in (1,435 mm)|
|Driver diameter||4 ft 0 in (1.219 m)|
|Wheelbase||13 ft 4 in (4.06 m)|
|Length||28 ft 2 1⁄2 in (8.60 m) over buffers|
|Locomotive weight||40 tons 5.75 cwt (90,200 lb or 40.9 t)|
|Fuel capacity||2 tons 10 cwt (5,600 lb or 2.5 t)|
|Water capacity||1,000 imp gal (4,550 l; 1,200 US gal)|
|Boiler pressure||Originally: 140 lbf/in2 (0.97 MPa)
later: 160 lbf/in2 (1.10 MPa)
|Firegrate area||12.4 sq ft (1.15 m2)|
|987.4 sq ft (91.73 m2)|
|Cylinder size||16 1⁄2 in × 22 in (419 mm × 559 mm)|
|Valve type||Slide valves|
|Tractive effort||16,970 lbf (75.49 kN)|
|Railroad(s)||GER » LNER » BR|
|Power class||BR: 2F|
|Axle load class||LNER/BR: Route Availability 3|
The GER Class T18 was a class of fifty 0-6-0 tank steam locomotives designed by James Holden for the Great Eastern Railway. They passed to the London and North Eastern Railway at the grouping in 1923 and received the LNER classification J66.
When James Holden took office on the Great Eastern, there were few 0-6-0T locomotives, most shunting being done by 0-4-4T and obsolete tender locomotives.
|Year||Order||Builder||Quantity||GER Nos.||LNER Nos.||Notes|
Withdrawals started in 1936 when four (7278, 7287, 7303 and 7308) were sold to Sir Robert McAlpine and Son, the latter concern also having five on loan from late 1936 to mid-1938. Three others were sold, with No. 297 going to the Mersey Railway in 1939 as their No. 3 to work ballast trains. By the end of 1940, thirty-one had been withdrawn, and the remaining 19 locomotives continued with no further retirements until 1950. In the LNER 1944 renumbering plan, the locomotives were renumbered 8370–8388. Withdrawal restarted in 1950 and all were gone by the end of 1955.
In 1952, Three locomotives, 8370 and 8378, and 8382 were transferred to the service list as 32, 36, and 31 respectively.
- Aldrich, C. Langley (1969). The Locomotives of the Great Eastern Railway 1862–1962 (7th ed.). Wickford, Essex: C. Langley Aldrich. OCLC 30278831.
- Allen, D. W.; Boddy, M. G.; Brown, W. A.; Fry, E. V.; Hennigan, W.; Manners, F.; Neve, E.; Proud, P.; Roundthwaite, T. E.; Tee, D. F.; Yeadon, W. B. (November 1970). Fry, E. V., ed. Locomotives of the L.N.E.R., part 8A: Tank Engines - Classes J50 to J70. Kenilworth: RCTS. ISBN 0-901115-05-3.
|Wikimedia Commons has media related to GER Class T18 / LNER Class J66.|
- J. Holden locomotives — Great Eastern Railway Society
- The Holden J66 (GER Class T18) 0-6-0T Locomotives — LNER Encyclopedia