WD Austerity 2-10-0

Type and origin
Type and origin
Power type	Steam
Designer	R. A. Riddles
Builder	North British Locomotive Company
Serial number	25436–25535, 25596–25645
Build date	1943–1945
Total produced	150

WD Austerity 2-10-0
WD Austerity 2-10-0
	90775 on the North Norfolk Railway
Power type
Type and origin
Power type	Steam
Designer	R. A. Riddles
Builder	North British Locomotive Company
Serial number	25436–25535, 25596–25645
Build date	1943–1945
Total produced	150
Configuration:;
Specifications
Configuration:;
• Whyte	2-10-0
• UIC	1′E h2
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	2 ft 9 in (838 mm)
Driver dia.	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)
Adhesive weight	67 long tons 3 cwt (150,400 lb or 68.2 t) full
Loco 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 type	Coal
Fuel capacity	9 long tons 0 cwt (20,200 lb or 9.1 t)
Water cap.	5,000 imp gal (23,000 L; 6,000 US gal)
Firebox:
• Grate area	40 sq ft (3.7 m2)
Boiler pressure	225 lbf/in2 (1.55 MPa)
Heating surface:
• Firebox	192 sq ft (17.8 m2)
• Tubes	1,170 sq ft (109 m2)
• Flues	589 sq ft (54.7 m2)
Superheater:;
• Heating area	423 sq ft (39.3 m2)
Cylinders	Two, outside
Cylinder size	19 in × 28 in (483 mm × 711 mm)
Valve gear	Walschaerts
Valve type	10-inch (250 mm) piston valves
Tractive effort
Performance figures
Tractive effort	34,215 lbf (152.20 kN)
Operators
Career
Operators	WD » NS, BR, SEK, CFS
Power class	BR: 8F
Disposition	Eight total preserved or extant (Three in the UK, four in Greece, and one in the Netherlands) remainder scrapped

The War Department (WD) "Austerity" 2-10-0 is a type of heavy freight steam locomotive that was introduced during the Second World War in 1943.