BR Standard Class 7 70000 Britannia

Specifications
Specifications
Configuration:;
• Whyte	4-6-2
• UIC	2′C1′h2
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	6 ft 2 in (1.880 m)
Trailing dia.	3 ft 3+1⁄2 in (1.003 m)
Length	68 ft 9 in (20.96 m)
Width	8 ft 8+3⁄4 in (2.66 m)
Height	13 ft 0+1⁄2 in (3.98 m)7004
Axle load	20.50 long tons (20.83 t; 22.96 short tons)
Adhesive weight	61.50 long tons (62.49 t; 68.88 short tons)
Loco weight	94.00 long tons (95.51 t; 105.28 short tons)
Tender weight	49.15 long tons (49.94 t; 55.05 short tons)
Tender type	BR1
Fuel type	coal
Fuel capacity	7.0 long tons (7.1 t; 7.8 short tons)
Water cap.	4,250 imp gal (19,300 L; 5,100 US gal)
Firebox:
• Grate area	42 sq ft (3.9 m2)
Boiler	BR1
Boiler pressure	250 psi (1.72 MPa)
Heating surface:
• Firebox	210 sq ft (20 m2)
• Tubes and flues	2,264 sq ft (210.3 m2)
Superheater:;
• Heating area	718 sq ft (66.7 m2)
Cylinders	Two, outside
Cylinder size	20 in × 28 in (508 mm × 711 mm)

Type and origin
Type and origin
Power type	Steam
Builder	British Railways Crewe works
Build date	2 January 1951

BR 70000 *Britannia*
BR 70000 Britannia
	Britannia approaching Bath, while on the Cathedrals Express railtour in 2012
Power type
Type and origin
Power type	Steam
Builder	British Railways Crewe works
Build date	2 January 1951
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-2
• UIC	2′C1′h2
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	6 ft 2 in (1.880 m)
Trailing dia.	3 ft 3+1⁄2 in (1.003 m)
Length	68 ft 9 in (20.96 m)
Width	8 ft 8+3⁄4 in (2.66 m)
Height	13 ft 0+1⁄2 in (3.98 m)7004
Axle load	20.50 long tons (20.83 t; 22.96 short tons)
Adhesive weight	61.50 long tons (62.49 t; 68.88 short tons)
Loco weight	94.00 long tons (95.51 t; 105.28 short tons)
Tender weight	49.15 long tons (49.94 t; 55.05 short tons)
Tender type	BR1
Fuel type	coal
Fuel capacity	7.0 long tons (7.1 t; 7.8 short tons)
Water cap.	4,250 imp gal (19,300 L; 5,100 US gal)
Firebox:
• Grate area	42 sq ft (3.9 m2)
Boiler	BR1
Boiler pressure	250 psi (1.72 MPa)
Heating surface:
• Firebox	210 sq ft (20 m2)
• Tubes and flues	2,264 sq ft (210.3 m2)
Superheater:;
• Heating area	718 sq ft (66.7 m2)
Cylinders	Two, outside
Cylinder size	20 in × 28 in (508 mm × 711 mm)
Tractive effort
Performance figures
Tractive effort	32,150 lbf (143.0 kN)
Factor of adh.	4.23
Operators
Career
Operators	British Railways
Class	Standard Class 7
Power class	7MT
Number in class	1st of 55
Numbers	70000
Official name	Britannia
Retired	May 1966
Current owner	Royal Scot Locomotive and General Trust
Disposition	Preserved
	Official Website - Britannia on Icons Of Steam

British Railways Standard Class 7 'Britannia Class' No. 70000 Britannia is a preserved steam locomotive, owned by the Royal Scot Locomotive and General Trust.

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