LNER Thompson Class A2/1
- Disambiguation: LNER Thompson Class A2
A2/1 Pacific 60508 Duke of Rothesay on its side after a derailment at New Southgate in July 1948.
|Type and origin|
|Gauge||4 ft 8 1⁄2 in (1,435 mm)|
|Driver diameter||6 ft 2 in (1.880 m)|
|Locomotive weight||98 long tons (100 t)|
|Boiler pressure||225 psi (1.55 MPa)|
|Cylinder size||19 in × 26 in (483 mm × 660 mm)|
|Tractive effort||36,385 lbf (161.85 kN)|
|Operator(s)||London and North Eastern Railway
The London and North Eastern Railway (LNER) Thompson Class A2/1 was a class of 4-6-2 steam locomotives. They were originally ordered as Class V2 locomotives, as designed by Sir Nigel Gresley, but were revised during construction into a 4-6-2 'Pacific' arrangement under the instruction of Edward Thompson. The A2/1 Class retained the same boiler as the Class V2, though the pressure was increased to 225psi. The information in the infobox (right) is taken from Ian Allan ABC.
Accidents and incidents
- On 17 July 1948. locomotive No. 60508 Duke of Rothesay was hauling a passenger train when it became derailed inside Barnet Tunnel, Hertfordshire due to a combination of faulty track and excessive speed. The whole train was subsequently derailed on points at New Southgate, London. One person was killed.
|Original No.||LNER No.||BR No.||Name||Entered stock||Withdrawn|
||Highland Chieftain||May 1944||December 1960|
||Duke of Rothesay||June 1944||February 1961|
||Waverley||November 1944||August 1960|
||Robert the Bruce||January 1944||November 1960|
All four locomotives were withdrawn from stock in 1960/1.
|This section does not cite any references (sources). (April 2013)|
Apple Green Engines produce a ready-to-run model of the A2/1 in 4 mm scale. PDK, Nucast, and DJH also produce 4 mm scale kits of the A2/1. Crownline have produced a 4 mm kit in the past, but this is no longer available.
- Boddy, M. G.; Neve, E.; Yeadon, W. B. (April 1973). Fry, E. V., ed. Locomotives of the L.N.E.R., Part 2A: Tender Engines—Classes A1 to A10. Kenilworth: RCTS. ISBN 0-901115-25-8.
- Yeadon, Willie (1991). Yeadon's Register of LNER Locomotives, volume 3: Raven, Thompson & Peppercorn Pacifics. Irwell Press.