LMS Princess Coronation Class 6229 Duchess of Hamilton

Specifications
Specifications
Configuration:;
• Whyte	4-6-2
• UIC	2′C1′ h4
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Leading dia.	3 ft 0 in (0.914 m)
Driver dia.	6 ft 9 in (2.057 m)
Trailing dia.	3 ft 9 in (1.143 m)
Minimum curve	6 chains (120 m) normal; 4+1⁄2 chains (91 m) dead slow;
Wheelbase	62 ft 11 in (19.177 m)
• Engine	37 ft 0 in (11.278 m)
• Drivers	14 ft 6 in (4.420 m)
• Tender	15 ft 0 in (4.57 m)
Length	Streamlined: 73 ft 9+3⁄4 in (22.498 m); Conventional: 73 ft 10+1⁄4 in (22.511 m);
Height	13 ft 3 in (4.039 m)
Loco weight	Streamlined: 108.1 long tons (121 short tons; 110 t); Conventional: 105.25 long tons (117.88 short tons; 106.94 t);
Tender weight	56.35 long tons (63.11 short tons; 57.25 t)
Fuel type	Coal
Fuel capacity	10 long tons (11.2 short tons; 10.2 t)
Water cap.	4,000 imp gal (18,000 L; 4,800 US gal)
Firebox:
• Type
• Grate area	50 sq ft (4.6 m2)
Boiler:;
• Model	LMS type 1X
• Tube plates	19 ft 3 in (5.867 m)
• Small tubes	2+3⁄8 in (60 mm), 129 off
• Large tubes	5+1⁄8 in (130 mm), 40 off
Boiler pressure	250 psi (1.72 MPa)
Heating surface:
• Firebox	230 sq ft (21 m2)
• Tubes and flues	2,577 sq ft (239.4 m2)
• Total surface	2,807 sq ft (260.8 m2)
Superheater:;
• Heating area	822 sq ft (76.4 m2)
Cylinders	4
Cylinder size	16+1⁄2 in × 28 in (419 mm × 711 mm)
Valve gear	Walschaerts for outside cylinders with rocking shafts for inside cylinders
Valve type	Piston valves

Type and origin
Type and origin
Power type	Steam
Designer	William Stanier
Builder	LMS Crewe Works
Build date	September 1938

*Duchess of Hamilton*
Duchess of Hamilton
	6229 Duchess of Hamilton on display at the National Railway Museum.
Power type
Type and origin
Power type	Steam
Designer	William Stanier
Builder	LMS Crewe Works
Build date	September 1938
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-2
• UIC	2′C1′ h4
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Leading dia.	3 ft 0 in (0.914 m)
Driver dia.	6 ft 9 in (2.057 m)
Trailing dia.	3 ft 9 in (1.143 m)
Minimum curve	6 chains (120 m) normal; 4+1⁄2 chains (91 m) dead slow;
Wheelbase	62 ft 11 in (19.177 m)
• Engine	37 ft 0 in (11.278 m)
• Drivers	14 ft 6 in (4.420 m)
• Tender	15 ft 0 in (4.57 m)
Length	Streamlined: 73 ft 9+3⁄4 in (22.498 m); Conventional: 73 ft 10+1⁄4 in (22.511 m);
Height	13 ft 3 in (4.039 m)
Loco weight	Streamlined: 108.1 long tons (121 short tons; 110 t); Conventional: 105.25 long tons (117.88 short tons; 106.94 t);
Tender weight	56.35 long tons (63.11 short tons; 57.25 t)
Fuel type	Coal
Fuel capacity	10 long tons (11.2 short tons; 10.2 t)
Water cap.	4,000 imp gal (18,000 L; 4,800 US gal)
Firebox:
• Type
• Grate area	50 sq ft (4.6 m2)
Boiler:;
• Model	LMS type 1X
• Tube plates	19 ft 3 in (5.867 m)
• Small tubes	2+3⁄8 in (60 mm), 129 off
• Large tubes	5+1⁄8 in (130 mm), 40 off
Boiler pressure	250 psi (1.72 MPa)
Heating surface:
• Firebox	230 sq ft (21 m2)
• Tubes and flues	2,577 sq ft (239.4 m2)
• Total surface	2,807 sq ft (260.8 m2)
Superheater:;
• Heating area	822 sq ft (76.4 m2)
Cylinders	4
Cylinder size	16+1⁄2 in × 28 in (419 mm × 711 mm)
Valve gear	Walschaerts for outside cylinders with rocking shafts for inside cylinders
Valve type	Piston valves
Tractive effort
Performance figures
Tractive effort	40,000 lbf (180 kN)
Operators
Career
Operators	London, Midland and Scottish Railway; British Railways;
Power class	LMS: 7P; BR: 8P;
Numbers	LMS: 6229; BR: 46229;
Official name	Duchess of Hamilton
Withdrawn	February 1964
Restored	1980
Disposition	Static display at the National Railway Museum

London Midland and Scottish Railway (LMS) Coronation Class 6229 (British Railways number 46229) Duchess of Hamilton is a preserved steam locomotive built in September 1938 by the LMS Crewe Works and operated until February 1964.