LMS Patriot Class

Specifications
Specifications
Configuration:;
• Whyte	4-6-0
• UIC	2′C h3
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 3 in (0.991 m)
Driver dia.	6 ft 9 in (2.06 m)
Length	62 ft 8+3⁄4 in (19.120 m)
Loco weight	80.75 long tons (82.05 t; 90.44 short tons)
Tender weight	42.70 long tons (43.39 t; 47.82 short tons)
Total weight	123.45 long tons (125.43 t; 138.26 short tons)
Fuel type	Coal
Fuel capacity	5.5 long tons (5.6 t; 6.2 short tons)
Water cap.	3,500 imp gal (16,000 L; 4,200 US gal)
Firebox:
• Grate area	30+1⁄2 sq ft (2.83 m2)
Boiler	G9½S
Boiler pressure	200 psi (1.4 MPa)
Heating surface:
• Firebox	183 sq ft (17.0 m2)
• Tubes and flues	1,552 sq ft (144.2 m2)
Superheater:;
• Heating area	365 sq ft (33.9 m2)
Cylinders	3
Cylinder size	18 in × 26 in (457 mm × 660 mm)
Valve gear	Walschaerts
Valve type	Piston valves
Train brakes	Vacuum

Type and origin
Type and origin
Power type	Steam
Designer	Sir Henry Fowler
Builder	LMS Crewe Works - (42); LMS Derby Works - (10);
Build date	1930–1934
Total produced	52

LMS Patriot Class
LMS Patriot Class
	45500 Patriot at Manchester Victoria, 1960.
Power type
Type and origin
Power type	Steam
Designer	Sir Henry Fowler
Builder	LMS Crewe Works - (42); LMS Derby Works - (10);
Build date	1930–1934
Total produced	52
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-0
• UIC	2′C h3
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 3 in (0.991 m)
Driver dia.	6 ft 9 in (2.06 m)
Length	62 ft 8+3⁄4 in (19.120 m)
Loco weight	80.75 long tons (82.05 t; 90.44 short tons)
Tender weight	42.70 long tons (43.39 t; 47.82 short tons)
Total weight	123.45 long tons (125.43 t; 138.26 short tons)
Fuel type	Coal
Fuel capacity	5.5 long tons (5.6 t; 6.2 short tons)
Water cap.	3,500 imp gal (16,000 L; 4,200 US gal)
Firebox:
• Grate area	30+1⁄2 sq ft (2.83 m2)
Boiler	G9½S
Boiler pressure	200 psi (1.4 MPa)
Heating surface:
• Firebox	183 sq ft (17.0 m2)
• Tubes and flues	1,552 sq ft (144.2 m2)
Superheater:;
• Heating area	365 sq ft (33.9 m2)
Cylinders	3
Cylinder size	18 in × 26 in (457 mm × 660 mm)
Valve gear	Walschaerts
Valve type	Piston valves
Train brakes	Vacuum
Tractive effort
Performance figures
Tractive effort	26,520 lbf (118.0 kN)
Operators
Career
Operators	London, Midland and Scottish Railway; → British Railways;
Power class	1930–51: 5XP; 1951–65: 6P5F;
Numbers	LMS (1934): 5500–5551; BR: 45500–45551;
Withdrawn	1960–1965
Disposition	Original 52 withdrawn and scrapped; New-build project under construction

The Patriot Class was a class of 52 express passenger steam locomotives built for the London Midland and Scottish Railway. The first locomotive of the class was built in 1930 and the last in 1934. The class was based on the chassis of the Royal Scot combined with the boiler from Large Claughtons earning them the nickname Baby Scots. A total of 18 were rebuilt to create the LMS Rebuilt Patriot Class between 1946 and 1948; thereafter those not subjected to rebuilding were often referred to as the Unrebuilt Patriot Class. These remaining 34 unrebuilt engines were withdrawn between 1960 and 1962.