Tags: Locomotive.

The LNER W1 No. 10000 (also known as the Hush-Hush due to its secrecy and Gallopping Sausage before rebuild due to its shape) was an experimental steam locomotive fitted with a high pressure water-tube boiler. Nigel Gresley was impressed by the results of using high-pressure steam in marine applications and so in 1924 he approached Harold Yarrow of shipyard & boilermakers Yarrow & Company of Glasgow to design a suitable boiler for a railway locomotive based on Yarrow’s design.

Engine_10000_(Wonder_Book_of_Engineering_Wonders_1931).jpg
active years end year
1929-01-01T00:00:00+02:00
active years start year
1929-01-01T00:00:00+02:00
builder
Darlington Works
number built
1
rebuilder
Doncaster Works

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