GER Class A55

Specifications
Specifications
Configuration:;
• Whyte	0-10-0WT
• UIC	E n3tp
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Driver dia.	4 ft 6 in (1.372 m)
Loco weight	80 long tons 0 cwt (179,200 lb or 81.3 t)
Fuel capacity	2 long tons 0 cwt (4,500 lb or 2 t)
Water cap.	1,300 imp gal (5,900 L; 1,600 US gal)
Firebox:
• Grate area	42 sq ft (3.9 m2)
Boiler	length: 15 ft 6 in (4.724 m); inside dia: 5 ft 3 in (1.600 m)
Heating surface:
• Firebox	131.7 sq ft (12.24 m2)
• Tubes	395 x 1.75 in (44.5 mm) dia
• Total surface	2,873.3 sq ft (266.94 m2)
Cylinders	Three
Cylinder size	18.5 in × 24 in (470 mm × 610 mm)

Type and origin
Type and origin
Power type	Steam
Designer	James Holden
Builder	Stratford Works
Order number	A55
Build date	1902
Total produced	1

GER Class A55
GER Class A55
Power type
Type and origin
Power type	Steam
Designer	James Holden
Builder	Stratford Works
Order number	A55
Build date	1902
Total produced	1
Configuration:;
Specifications
Configuration:;
• Whyte	0-10-0WT
• UIC	E n3tp
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Driver dia.	4 ft 6 in (1.372 m)
Loco weight	80 long tons 0 cwt (179,200 lb or 81.3 t)
Fuel capacity	2 long tons 0 cwt (4,500 lb or 2 t)
Water cap.	1,300 imp gal (5,900 L; 1,600 US gal)
Firebox:
• Grate area	42 sq ft (3.9 m2)
Boiler	length: 15 ft 6 in (4.724 m); inside dia: 5 ft 3 in (1.600 m)
Heating surface:
• Firebox	131.7 sq ft (12.24 m2)
• Tubes	395 x 1.75 in (44.5 mm) dia
• Total surface	2,873.3 sq ft (266.94 m2)
Cylinders	Three
Cylinder size	18.5 in × 24 in (470 mm × 610 mm)
Tractive effort
Performance figures
Tractive effort	38,788 lbf (172.54 kN)
Operators
Career
Operators	Great Eastern Railway
Class	A55
Number in class	1
Numbers	20
Nicknames	Decapod
Disposition	Rebuilt in 1906 as 0-8-0 and later scrapped

The GER Class A55 or Decapod was an experimental steam locomotive with an 0-10-0T wheel arrangement designed by James Holden for the Great Eastern Railway. It was the first ten-coupled steam locomotive in Great Britain.

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