LMS Fairburn 2-6-4T
|LMS Fairburn 2-6-4T|
42072 at Bradford Exchange, 1966/7
|Type and origin|
|Designer||Charles E. Fairburn|
|UIC classification||1′C2′ h2t|
|Gauge||4 ft 8 1⁄2 in (1,435 mm)|
|3 ft 3 1⁄2 in (1.003 m)|
|Driver diameter||5 ft 9 in (1.753 m)|
|3 ft 3 1⁄2 in (1.003 m)|
|Wheelbase||37 ft 1 in (11.30 m)|
|Length||45 ft 9 3⁄4 in (13.96 m)|
|Locomotive weight||42050–42146: 84.70 long tons (86.06 t)
remainder: 85.25 long tons (86.62 t)
|Fuel capacity||3.5 long tons (3.6 t)|
|Water capacity||42050–42146: 1,875 imp gal (8,520 l)
remainder: 2,000 imp gal (9,100 l)
|Boiler||LMS type 4C|
|Boiler pressure||200 lbf/in2 (1.38 MPa)|
|Firegrate area||26 3⁄4 sq ft (2.49 m2)|
– Tubes and flues
|1,223 sq ft (113.6 m2)|
|– Firebox||143 sq ft (13.3 m2)|
|Superheater area||230 sq ft (21 m2)|
|Cylinder size||19 5⁄8 in × 26 in (498 mm × 660 mm)|
|Tractive effort||24,670 lbf (109.74 kN)|
|Disposition||Two preserved, remainder scrapped|
The London Midland and Scottish Railway (LMS) Fairburn Tank 2-6-4T steam locomotives are a class of steam locomotive. They were designed by Charles E. Fairburn for the London Midland and Scottish Railway (LMS). 277 of these locomotives were built between 1945–1951, numbered in the range 42050–42186, (4)2187–(4)2299, (4)2673–(4)2699.
This design was based on the earlier Stanier LMS Stanier 2-6-4T, which was derived from Henry Fowler's LMS Fowler 2-6-4T engine. Fairburn modified the design to have a shorter wheelbase, reduced from 16 ft 6 in (5.03 m) to 15 ft 4 in (4.67 m) allowing curves of 5 chains to be negotiated; to reduce the locomotives mass per unit length the overall weight was reduced by 3 long tons 8 cwt (7,600 lb or 3.5 t).
It was also the basis for the later British Rail Standard Class 4 tank. They were used mainly for suburban passenger trains. Forty-one examples of the class were constructed by Brighton railway works for service on the Southern Region of British Railways in 1950 and 1951, replacing earlier designs. The majority of these remained on the Southern Region throughout their working lives.
|LMS No.||BR No.||Lot No.||Date built||Built by|
Accidents and incidents
- On 19 April 1955, locomotive No. 42085 was in collision with V2 No. 60968 at Newcastle Central station, Northumberland. Both locomotives were derailed.
Two of the Brighton-built locomotives, nos. 42073 and 42085, survive in preservation on the Lakeside & Haverthwaite Railway, though 42085 recently underwent repairs at the Great Central Railway.
In its early days, 2085 carried Caledonian Railway blue livery, complete with an oval brass Caledonian number plate. This attractive livery was popular with the public, but strongly divided opinions in the preservation movement for its inaccuracy. At the same time, 2073 was painted in LNWR blackberry black, which was comparably anachronistic but generated less hostility as it did at least resemble the original livery.
Bachmann produces a 00 Gauge model of the Fairburn 4MT in LMS Black as well as early and late BR, numbered as 42073. Bachmann (Graham Farish) also produces several N gauge variants: 2691 in LMS black, 42096 (early BR black), and 42073 (late BR black).
ACE Trains have produced an O-gauge model of 2085 in its early-preservation Caledonian Railway blue livery, although the model is actually of a Stanier designed 2-6-4T.
- Rowledge, J.W.P. (1975). Engines of the LMS, built 1923–51. Oxford: Oxford Publishing Company. ISBN 0-902888-59-5.
|Wikimedia Commons has media related to
LMS Fairburn Class 4 2-6-4T.