The London and North Western Railway

London and North Western Railway

The London and North Western Railway was a British railway company between 1846 and 1922. It was created by the merger of three companies – the Grand Junction Railway, the London and Birmingham Railway and the Manchester and Birmingham Railway...

 (LNWR) Prince of Wales Tank Class was a pacific

4-6-2

4-6-2, in the Whyte notation for the classification of steam locomotives, represents the wheel arrangement of four leading wheels on two axles , six powered and coupled driving wheels on three axles, and two trailing wheels on one axle .These locomotives are also known as Pacifics...

 tank engine version of the Prince of Wales Class

LNWR Prince of Wales Class

The London and North Western Railway Prince of Wales Class was a class of express passenger passenger locomotive. It was in effect, a superheated version of the Experiment Class 4-6-0.They were introduced in 1911 by Charles Bowen-Cooke...

 4-6-0

4-6-0

Under the Whyte notation for the classification of steam locomotives, 4-6-0 represents the wheel arrangement of four leading wheels on two axles in a leading truck, six powered and coupled driving wheels on three axles, and no trailing wheels. This wheel arrangement became the second-most popular...

 steam locomotive

Steam locomotive

A steam locomotive is a railway locomotive that produces its power through a steam engine. These locomotives are fueled by burning some combustible material, usually coal, wood or oil, to produce steam in a boiler, which drives the steam engine...

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Bowen-Cooke's predecessor Whale had built 50 related Precursor Tank Class

LNWR Precursor Tank Class

The London and North Western Railway Precursor Tank Class was a class of 4-4-2 tank steam locomotives. Fifty were built to the design of George Whale between 1906 and 1909, being a tank engine version of his Precursor Class....

 4-4-2 engines. In terms of familial relationships, Prince of Wales Tank was both a superheated and extended version of the Precursor Tank, and a version of the Prince of Wales Class

LNWR Prince of Wales Class

The London and North Western Railway Prince of Wales Class was a class of express passenger passenger locomotive. It was in effect, a superheated version of the Experiment Class 4-6-0.They were introduced in 1911 by Charles Bowen-Cooke...

 4-6-0

4-6-0

Under the Whyte notation for the classification of steam locomotives, 4-6-0 represents the wheel arrangement of four leading wheels on two axles in a leading truck, six powered and coupled driving wheels on three axles, and no trailing wheels. This wheel arrangement became the second-most popular...

 steam locomotive

Steam locomotive

A steam locomotive is a railway locomotive that produces its power through a steam engine. These locomotives are fueled by burning some combustible material, usually coal, wood or oil, to produce steam in a boiler, which drives the steam engine...

 with side tanks and a bunker which necessitated an extension to the frames and trailing pony truck

Pony truck

A pony truck, in railway terminology, is a leading truck with only two wheels.Its invention is generally credited to Levi Bissell, who devised one in 1857 and patented it the following year. Hence the term Bissel bogie or axle is used in continental Europe...

. They were mostly used on suburban services out of Euston station

Euston railway station

Euston railway station, also known as London Euston, is a central London railway terminus in the London Borough of Camden. It is the sixth busiest rail terminal in London . It is one of 18 railway stations managed by Network Rail, and is the southern terminus of the West Coast Main Line...

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The LNWR built 47 of the superheated tanks between 1910 and 1916 under Charles Bowen-Cooke

Charles Bowen-Cooke

Charles John Bowen Cooke was Chief Mechanical Engineer of the London and North Western Railway . He was the first to add superheating to the locomotives of the railway. He wrote a book called British locomotives: their history, construction; and modern development which was published in 1893,...

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All passed onto LMS

London, Midland and Scottish Railway

The London Midland and Scottish Railway was a British railway company. It was formed on 1 January 1923 under the Railways Act of 1921, which required the grouping of over 120 separate railway companies into just four...

 ownership on the 1923 grouping. The LMS gave them the power classification 4P. Withdrawals started in 1935, their replacements being Class 4 2-6-4T designs by Fowler and Stanier. All were gone by 1941.

None was preserved.