LMS Class 7F 0-8-0

Specifications
Specifications
Configuration:;
• Whyte	0-8-0
• UIC	D h2G
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Driver dia.	4 ft 8+1⁄2 in (1,435 mm)
Wheelbase	Loco: 18 ft 3 in (5.56 m)
Length	56 ft 1 in (17.09 m)
Loco weight	60.75 long tons (61.72 t; 68.04 short tons)
Tender weight	41.20 long tons (41.86 t; 46.14 short tons)
Total weight	101.95 long tons (103.59 t; 114.18 short tons)
Fuel type	Coal
Fuel capacity	4 long tons (4.1 t; 4.5 short tons)
Water cap.	3,500 imp gal (16,000 L; 4,200 US gal)
Firebox:
• Grate area	23.5 sq ft (2.18 m2)
Boiler	LMS type G7¾S
Boiler pressure	200 lbf/in2 (1.38 MPa)
Heating surface:
• Firebox	150 sq ft (14 m2)
• Tubes and flues	1,434 sq ft (133.2 m2) later 1,402 sq ft (130.3 m2)
Superheater:;
• Heating area	353 sq ft (32.8 m2) to 338 sq ft (31.4 m2)
Cylinders	Two
Cylinder size	19+1⁄2 in × 26 in (495 mm × 660 mm)
Valve gear	Walschaerts, piston valves

Type and origin
Type and origin
Power type	Steam
Builder	LMS Crewe Works
Build date	1929–1932
Total produced	175

LMS 7F 0-8-0
LMS 7F 0-8-0
	49592 at Aintree, June 1948.
Power type
Type and origin
Power type	Steam
Builder	LMS Crewe Works
Build date	1929–1932
Total produced	175
Configuration:;
Specifications
Configuration:;
• Whyte	0-8-0
• UIC	D h2G
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Driver dia.	4 ft 8+1⁄2 in (1,435 mm)
Wheelbase	Loco: 18 ft 3 in (5.56 m)
Length	56 ft 1 in (17.09 m)
Loco weight	60.75 long tons (61.72 t; 68.04 short tons)
Tender weight	41.20 long tons (41.86 t; 46.14 short tons)
Total weight	101.95 long tons (103.59 t; 114.18 short tons)
Fuel type	Coal
Fuel capacity	4 long tons (4.1 t; 4.5 short tons)
Water cap.	3,500 imp gal (16,000 L; 4,200 US gal)
Firebox:
• Grate area	23.5 sq ft (2.18 m2)
Boiler	LMS type G7¾S
Boiler pressure	200 lbf/in2 (1.38 MPa)
Heating surface:
• Firebox	150 sq ft (14 m2)
• Tubes and flues	1,434 sq ft (133.2 m2) later 1,402 sq ft (130.3 m2)
Superheater:;
• Heating area	353 sq ft (32.8 m2) to 338 sq ft (31.4 m2)
Cylinders	Two
Cylinder size	19+1⁄2 in × 26 in (495 mm × 660 mm)
Valve gear	Walschaerts, piston valves
Tractive effort
Performance figures
Tractive effort	29,745 lbf (132.31 kN)
Power class
Career
Power class	7F
Numbers	LMS: 9500–9674; BR: 49500–49674;
Nicknames	Baby Austins; Austin Sevens;
Withdrawn	1949–1962
Disposition	All scrapped

The London, Midland and Scottish Railway Fowler Class 7F was a class of 0-8-0 steam locomotives. They were a Midlandised version of the London and North Western Railway (LNWR) Class G2 and Class G2A 0-8-0s. They were also classified as Class G3 under the former LNWR system. The class were sometimes known as Baby Austins, or Austin 7s, after a motor car that was becoming popular at the time.

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