WD Austerity 2-10-0
|WD Austerity 2-10-0|
|Type and origin|
|Designer||R. A. Riddles|
|Builder||North British Locomotive Company|
|Serial number||25436–25535, 25596–25645|
|UIC classification||1′E h|
|Gauge||4 ft 8 1⁄2 in (1,435 mm) standard gauge|
|2 ft 9 in (838 mm)|
|Driver diameter||4 ft 8 1⁄2 in (1,435 mm)|
|Length||67 ft 6 1⁄4 in (20.58 m) over buffers|
|Axle load||13 long tons 9 cwt (30,100 lb or 13.7 t)|
|Weight on drivers||67 long tons 3 cwt (150,400 lb or 68.2 t) full|
|Locomotive weight||78 long tons 6 cwt (175,400 lb or 79.6 t) full|
|Tender weight||55 long tons 10 cwt (124,300 lb or 56.4 t) full|
|Fuel capacity||9 long tons 0 cwt (20,200 lb or 9.1 t)|
|Water capacity||5,000 imp gal (23,000 L; 6,000 US gal)|
|Boiler pressure||225 lbf/in2 (1.55 MPa)|
|Firegrate area||40 sq ft (3.7 m2)|
|1,170 sq ft (109 m2)|
|– Flues||589 square feet (54.7 m2)|
|– Firebox||192 sq ft (17.8 m2)|
|Superheater area||423 sq ft (39.3 m2)|
|Cylinder size||19 in × 28 in (483 mm × 711 mm)|
|Valve type||10-inch (250 mm) piston valves|
|Tractive effort||34,215 lbf (152.20 kN)|
|Operator(s)||WD » NS, BR, SEK, CFS|
|Power class||BR: 8F|
The Austerity 2-10-0 was based on the Austerity 2-8-0, and was designed to have interchangeable parts by R.A. Riddles. It had the same power output as the 2-8-0 but a lighter axle load, making it suitable for secondary lines.
It had a parallel boiler and round-topped firebox. While the 2-8-0 had a narrow firebox, the 2-10-0 had a wide firebox placed above the driving wheels. This arrangement was common in the USA (e.g. the USRA 0-8-0) but unusual in Britain. In Britain, wide fireboxes were usually used only where there was a trailing axle, e.g. in 4-4-2 and 4-6-2 types. One exception was the GER Decapod.
These were the first 2-10-0 locomotives to work in Great Britain, and the first major class of ten-coupled engines — they had been preceded by two 0-10-0 locomotives; the Great Eastern Railway's Decapod and the Midland Railway's Lickey Banker.
The 2-10-0 wheel arrangement was later used by Riddles when he designed the BR standard class 9F. This, too, had a wide firebox placed above the driving wheels.
Two batches were built by the North British Locomotive Company, the first batch of 100 introduced in 1943/1944 and the second batch of 50 in 1945. Their WD Nos were 73650–73799.
After the war the 150 locomotives were distributed as follows, the majority going to the Netherlands:
|No. of engines||Country||Company||Class|
|103||Netherlands||Nederlandse Spoorwegen (NS)||NS Series 5000II|
|25||Great Britain||British Railways (BR)||BR ex-WD Austerity 2-10-0|
|16||Greece||Hellenic State Railways (SEK)||SEK Class Λβ|
|4||Syria||Chemins de Fer Syriens (CFS)||CFS Class 150.6|
After the war, the British Railways (BR) bought twenty-five locomotives. These were initially numbered 73774-73798 but later re-numbered 90750-74. They were mostly operated by BR's Scottish Region on heavy freight trains and were all withdrawn between 1961 and 1962.
BR Scottish Region WD 2-10-0 90768 at Motherwell motive power depot in 1958
Further WD services
In the 1952 WD renumbering scheme, the two remaining in WD service (at the Longmoor Military Railway, Nos. 73651 and 73797, were renumbered 600 and 601 respectively. The also received names: 600 Gordon and 601 Kitchener.
Two more have been repatriated from Greece. One has been numbered 90775, one higher than the last BR engine, and has carried the name Sturdee (as WD/LMR No. 601 before being numbered 90775). In service on North Norfolk Railway. The other is WD No. (7)3672 which has been named Dame Vera Lynn. The loco is currently awaiting overhaul at Grosmont, NYMR.
The 4th one in preservation WD 73755 (NS 5085) survives in the Dutch Railway Museum (Nederlands Spoorwegmuseum) in Utrecht. It carried the nameplate Longmoor, after the Royal Engineer's base at Longmoor, with the coat of arms of the Royal Engineers above.
|(7)3651||—||—||—||600||Gordon||On display in the Engine House, Severn Valley Railway, England|
|(7)3652||—||Λβ951||90775*||—||Sturdee* (name not currently carried)||Undergoing overhaul, North Norfolk Railway, Norfolk, England|
|(7)3672||—||Λβ960||—||—||Dame Vera Lynn*||Awaiting overhaul at Grosmont North Yorkshire Moors Railway, Yorkshire, England|
|73755||5085||—||—||—||Longmoor||Nederlands Spoorwegmuseum, Utrecht, Netherlands|
* Name or number applied after preservation
Notes and references
- after Doveton Sturdee
- Boddy, M. G.; Brown, W. A.; Neve, E.; Yeadon, W. B. (November 1983). Fry, E. V., ed. Locomotives of the L.N.E.R., Part 6B: Tender Engines—Classes O1 to P2. Kenilworth: RCTS. ISBN 0-901115-54-1.
- Tourret, R. (1995). Allied Military Locomotives of the Second World War. Abingdon, Oxon: Tourret Publishing. ISBN 0-905878-06-X.
- Rowledge, J. W. P. Heavy Goods Engines of the War Department: Vol. 3 – Austerity 2-8-0 and 2-10-0.
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