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