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LNWR Locomotive Classes
What is that Locomotive

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Terrier Locomotive Class
A class of engine used on the LBSC railwayExplain 'London, Brighton & South Coast Railway (LBSCR)' - not relevant to the LNWR at all.
Teutonic 2-2-2-0 Locomotive Class
The ‘Teutonic’ was developed from the ‘Dreadnought’Explain 'Dreadnought Locomotive Class' class, and became the most successful and, when built, the largest of F.W. Webb’sExplain 'Webb, Francis William (1836—1906)' 2-2-2-0 three-cylinder compoundsExplain 'Three-cylinder compound' . Using the same boilerExplain 'Boiler', they had 7ft 1in driving wheelsExplain 'Drive Wheel' (compared with 6ft 3in on the ‘Dreadnoughts’). The reversersExplain 'Reversing Gear' for the two outside high-pressure cylinders, and the one inside low-pressure cylinder were linked, so that the driver could adjust one independently of the other. The axle boxesExplain 'Axle-box' were lubricated by oil instead of grease, a feature introduced on the class. All except “Jeanie Deans”Explain 'Jeanie Deans' were named after ships of the White Star Line. “Pacific”, the third of the class, was originally built as a triple expansion compound but was soon converted to conform with the rest of the class.
Tishy Locomotive Class
The “Tishy” name was applied to “Prince of Wales” engines fitted with outside valve gearExplain 'Valve Gear', which operated the valves on inside cylinders. The nickname came from a contemporary race horse which kept falling over its own legs.
Waterloo 2-4-0 Locomotive Class
See Small JumboExplain 'Small Jumbo 2-4-0 Locomotive Class'. No.748 Waterloo was the first in the class, in the sense of having the lowest Crewe motion number.
Watford Tank 0-6-2T Locomotive Class
An 0-6-2 tank version of Webb’s 18in GoodsExplain '18in Goods Engine 0-6-0 Locomotive Class', or ‘Cauliflower’, which incorporated 5ft 3in driving wheelsExplain 'Drive Wheel' and Joy valve gearExplain 'Joy’s Valve Gear'. Intended as ‘mixed traffic’Explain 'Mixed Traffic Locomotive' engines, they became popular on the suburban trains between London (Euston) and Watford, from which they derived their nickname.
Webb Compound
A steam locomotive compoundExplain 'Compounding' system in which two outside high-pressure cylinders exhaust into a single inside low-pressure cylinder.
Whitworth 2-4-0 Locomotive Class
See Small JumboExplain 'Small Jumbo 2-4-0 Locomotive Class'. No.1045 Whitworth was the first of this class into traffic in September 1889.
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