LNWR Class A

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LNWR Class A
LNWR locomotive No.50, A Class.jpg
No. 50 in photographic grey livery
Type and origin
Power typeSteam
Designer F.W. Webb
Builder LNWR at Crewe Works
Build date1893–1900
Total produced111
Specifications
Configuration:
   Whyte 0-8-0
   UIC D n3vG
Gauge 4 ft 8+12 in (1,435 mm)
Driver dia.4 ft 8 in (1.42 m)
Wheelbase 17 ft 3 in (5.26 m)
Loco weight50 long tons 0 cwt (112,000 lb or 50.8 t)
Fuel typeCoal
Boiler pressure175 psi (1.21 MPa)
Heating surface1,489 sq ft (138.3 m2)
Cylinders Three, compound
High-pressure cylinder(2 outside) 15 by 24 inches (380 mm × 610 mm)
Low-pressure cylinder(1 inside) 30 by 24 inches (760 mm × 610 mm)
Valve gear Stephenson link motion
Career
Operators London and North Western Railway
Disposition15 rebuilt to Class C 1904–06
62 rebuilt to Class D 1906–09
34 rebuilt to Class C1 1909–12

The London and North Western Railway (LNWR) Class A was a class of 0-8-0 steam locomotives. From 1893 to 1900, Crewe Works built 111 of these engines, which had a three-cylinder compound arrangement, and were designed by Francis Webb. According to the LNWR Society, 110 were built between 1894 and 1900. [1]

Contents

Rebuilding

Like the other Webb compounds, they proved problematic, so in 1904 George Whale began rebuilding these to simple expansion engines. Fifteen were converted to Class C between 1904 and 1906, 62 to Class D between 1906 and 1909, with the remaining 34 rebuilt by Charles Bowen Cooke to Class C1 between 1909 and 1912.

All Class D locomotives were later rebuilt to Class G1. Some of them, rebuilt to Class G2a, were still running in 1962. [2]

Classification

The LNWR letter classification system for 8 coupled engines (A, B, C, etc.) was introduced in 1911.

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<span class="mw-page-title-main">LNWR Jubilee Class</span>

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<span class="mw-page-title-main">LNWR Class B</span>

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<span class="mw-page-title-main">LNWR Class C</span>

The London and North Western Railway (LNWR) Class C was a class of 0-8-0 steam locomotives. They were two cylinder simple expansion rebuilds of the three-cylinder Class A designed by F.W. Webb. Fifteen Class As were converted to Class C between 1904 and 1906 by George Whale.

<span class="mw-page-title-main">LNWR Class C1</span>

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<span class="mw-page-title-main">LNWR Class D</span>

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<span class="mw-page-title-main">LNWR Class F</span>

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<span class="mw-page-title-main">LNWR Class G2A</span>

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References

  1. LNWR Society. "Goods Engines of LNWR - 'A' Class". Lnwrs.org.uk. Retrieved 9 April 2012.
  2. Brooksbank, Ben (24 March 1951), English: Ex-LNW 0-8-0 at Bescot. , retrieved 19 May 2019

Further reading