LNWR Prince of Wales Tank Class

Last updated

LNWR 2665 Class
"5ft 6in Tank (Superheated)"
LNWR engine No.2273, 2665 Class.jpg
No. 2273
Type and origin
Power typeSteam
Designer Charles Bowen Cooke
BuilderLNWR Crewe Works
Serial number4950–69, 5080–96, 5347–56
Model1910–1916
Total produced47
Specifications
Configuration:
​
 •  Whyte 4-6-2T
 •  UIC 2′C1 n2t
Gauge 4 ft 8+1⁄2 in (1,435 mm)
Leading dia. 3 ft 3 in (0.991 m)
Driver dia.5 ft 8+1⁄2 in (1.740 m)
Trailing dia. 3 ft 3 in (0.991 m)
Loco weight78 long tons (79 t)
Boiler pressure175 lbf/in2 (1.21 MPa)
Heating surfaceSaturated: 1,475 sq ft (137.0 m2)
Superheated: 1,330 sq ft (124 m2)
Cylinders Two
Cylinder size Saturated:18+1⁄2 in × 26 in (0 m × 1 m)
Superheated: 20 in × 26 in (508 mm × 660 mm)
Valve gear Joy
Valve typePiston valves
Career
Operators
Class 5ft 6in Tank (Superheated)
Power classLMS: 4P
NicknamesPrince of Wales Tank
Withdrawn1935–1941
DispositionAll scrapped

The London and North Western Railway (LNWR) Prince of Wales Tank Class was a pacific tank engine version of the Prince of Wales Class 4-6-0 steam locomotive.

Contents

History

Bowen-Cooke's predecessor George Whale had built 50 related Precursor Tank 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 4-6-0 steam locomotive with side tanks and a bunker which necessitated an extension to the frames and trailing pony truck. They were used on suburban services out of Euston station and from an early date also used on passenger services between Shrewsbury and Swansea (Victoria) over the steeply-graded Central Wales line, a journey of some 120 miles.

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

LMS service

All passed onto LMS ownership on the 1923 grouping. The LMS renumbered them 6950–6996 and 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, and no examples were preserved.

Fleet list

Related Research Articles

George Hughes was an English locomotive engineer, and chief mechanical engineer (CME) of the Lancashire and Yorkshire Railway (L&YR) and the London, Midland and Scottish Railway (LMS).

George Whale was an English locomotive engineer who was born in Bocking, Essex, and educated in Lewisham, London. He worked for the London and North Western Railway (LNWR).

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LNWR Prince of Wales Class

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LNWR Whale Precursor Class

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LNWR Whale Experiment Class

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LNWR Precursor Tank Class

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LNWR Class B

The London and North Western Railway (LNWR) Class B was a class of 0-8-0 steam locomotives introduced in 1901. A development of the three-cylinder compound Class A, they had a 4-cylinder compound arrangement. 170 were built between 1901-1904.

LNWR Class C1

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LNWR Class E

The London and North Western Railway (LNWR) Class E was a class of 2-8-0 steam locomotives in service between 1904 and 1928.

LNWR Class F

The London and North Western Railway (LNWR) Class F was a class of 2-8-0 steam locomotives in service between 1906 and 1928.

Throughout its existence the London and North Western Railway re-used the numbers and names of withdrawn locomotives on new ones as they came out of Crewe Works. This resulted in each class of locomotives being allotted numbers virtually at random, with names that adhered to no discernible theme. By 1911 new locomotives were being produced at a much faster rate than old ones were being scrapped, and it became necessary to introduce a new set of names for Bowen Cooke’s 4-6-0 express engines which were beginning to enter service.

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+1⁄2 in (1,740 mm).

References


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