LNWR 18in Tank Class

Last updated

LNWR 18-inch Tank
LNWR engine No.1597, 5ft 3in 0-6-2 Tank.jpg
1597, probably as built in photographic grey livery.
Type and origin
Power typeSteam
Designer F. W. Webb
Serial number3716–3725, 3878–3887, 3946–3955, 3966–3975, 4055–4064, 4135–4144, 4205–4214, 4225–4234
Build dateMay 1898 – July 1902
Total produced80
Specifications
Configuration:
   Whyte 0-6-2T
   UIC C1 n2t
Gauge 4 ft 8+12 in (1,435 mm)
Driver dia.5 ft 2+12 in (1,588 mm)
Trailing dia. 3 ft 9 in (1,143 mm)
Wheelbase 22 ft 3 in (6.78 m)
Wheel spacing
(Asymmetrical)
7 ft 3 in (2.21 m) +
8 ft 3 in (2.51 m) +
6 ft 9 in (2.06 m)
Loco weight52 long tons (53 t)
Cylinders Two, inside
Cylinder size 18 in × 24 in (457 mm × 610 mm)
Valve gear Joy
Career
Operators
Power classLMS: 1P
Withdrawn1920–1953
DispositionAll scrapped

The LNWR 18-inch Tank class was a class of 80 0-6-2T locomotives built by the London and North Western Railway in their Crewe Works between 1898 and 1902. [1] [2]

Contents

They were also known officially as the 5 ft 3in Tank Class or unofficially as the Watford Tank Class.

Design

The design featured a boiler pressed to 150 lbf/in2 (1.03 MPa) delivering saturated steam to two 18 by 24 in (457 by 610 mm) cylinders connected by Joy valve gear to the driving wheels.

The "5ft 3in" in the title referred to the diameter of the driving wheels (usually the stated dimension was for the wheel centres) but which were actually 5 ft 0 in (1.524 m). The nominal diameter including the tyres was 5 ft 2+12 in (1.588 m). [3]

They were a tank engine version of the LNWR Cauliflower Class, built from 1892.

Service

6917 at Leighton Buzzard station in 1948. Leighton Buzzard Station geograph-2211751.jpg
6917 at Leighton Buzzard station in 1948.

They were built as mixed traffic locomotives, and were frequently used on suburban services. Their use on Euston to Watford suburban trains gave rise to the nickname "Watford Tanks".

The first locomotive was withdrawn in 1920. By the time of the 1923 Grouping, 77 were still in service and passed to the London, Midland and Scottish Railway who gave them power classification 1P, and renumbered them 6860 to 6939. Fifteen were still in service at nationalisation in 1948, but only two survived to receive their British Railways' number.

None were preserved.

Related Research Articles

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LNWR 1185 Class

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LNWR Prince of Wales Tank Class

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LNWR Dock Tank

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Midland Railway 1252 Class

The Midland Railway 1252 class was a class of 30 0-4-4T locomotives built by Neilson and Company in 1875–1876 to the design of Samuel W. Johnson. They were a development of the 6 Class. Originally numbers 1262–1281 and 1252–1261. Under the Midland Railway's 1907 renumbering scheme they became 1236–1265.

LT&SR 1 Class

The London, Tilbury and Southend Railway 1 class was a class of 4-4-2T suburban tank engines. Thirty-six were built between 1880–1892, by Sharp, Stewart and Company and Nasmyth, Wilson and Company. They were the first locomotives owned by the London, Tilbury and Southend Railway and were the first 4-4-2T locomotives to operate in Britain.

GER Class C72

The GER Class C72 was a class of thirty 0-6-0T steam locomotives designed by A. J. Hill for the Great Eastern Railway. They passed to the London and North Eastern Railway (LNER) at the 1923 grouping and received the LNER classification J68.

The L&YR Class 26 was a class of 20 2-6-2T passenger steam locomotives of the Lancashire and Yorkshire Railway designed by Henry Hoy and introduced in 1903. Most passed to the London, Midland and Scottish Railway (LMS) at the grouping in 1923 though they were withdrawn soon afterwards with none remaining in service after 1926.

LNWR DX Goods class

The London and North Western Railway (LNWR) DX Goods class was a class of 0-6-0 steam locomotive, designed by John Ramsbottom for freight duties. 943 were constructed making them the largest single class of steam locomotives built in the United Kingdom. Despite this, none were preserved.

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GER Class C32

The GER Class C32 was a class of fifty 2-4-2T steam locomotives designed by James Holden and built by the company's Stratford Works between 1892 and 1902. They all passed to the London and North Eastern Railway at the 1923 grouping and received the classification F3.

LNWR 4ft 6in Tank Class

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Midland Railway 1121 Class

The Midland Railway 1121 class was a class of 0-6-0T tank locomotives designed by Samuel W. Johnson for the Midland Railway. Fifty-five were built between 1895 and 1900: ten by the railway company's Derby Works, five by Sharp, Stewart and Company, and the remaining forty by Robert Stephenson and Company.

LNWR 18in Goods Class

The LNWR 18-inch Goods was a class of 310 0-6-0 freight steam locomotives built by the London and North Western Railway at their Crewe Works between 1880 and 1902.

LNWR 5ft 6in Tank Class

The LNWR 5 ft 6in Tank was a class of 160 passenger 2-4-2T locomotives manufactured by the London and North Western Railway in their Crewe Works between 1890 and 1897. The "5ft 6in" in the title referred to the diameter of the driving wheels – although the stated dimension was for the wheel centres – the nominal diameter including the tyres was 5 ft 8+12 in (1,740 mm).

LNWR Newton Class

The LNWR Newton Class was a class of ninety-six 2-4-0 steam locomotives built by the London and North Western Railway at their Crewe Works between 1866 and 1873.

References

  1. "Locomotive Classes of the LNWR".
  2. "The Watford Tanks - LNWR Society Journal - June 2002".
  3. Baxter 1979, p. 247.