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Record: 71951 (21/04/2026)
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LNWR/LMS Webb "Waterloo" Class 2-4-0 - 'Small Jumbo'


Class Types
LNWR Class Waterloo
LNWR Class Whitworth
(Also known as) Small Jumbo

General
Designer Francis Webb
Introduced 1889
Pre-Grouping Company London and North Western Railway
Grouping Company London, Midland & Scottish Railway
Wheel Arrangement 2-4-0
Number Built as Waterloo 90
Number Scrapped 90
First in Service 11/1889
Last in Service 04/1936
Manufacturers
ManufacturerTotal
Crewe Works 90
Orders
BuilderSponsorOrder #DateSize
Crewe Works  n/a 09/1889 30
Crewe Works  n/a 03/1893 30
Crewe Works  n/a 1894 30
Historical Data Replacements of Ramsbottom and Webb Samson class 2-4-0.

Power
Variant Introduced 1889
Inside Cylinders 17" x 24" (2 off)
Inside Motion Allan

Wheels
Pony 3' 6"
Drivers 6'
Locomotive Wheelbase 15' 10"
Descriptive Wheelbase 7' 5" + 8' 5" = 15' 10" (engine only)

Dimensions
Weight (loco only) 36t 0cwt

Boiler & Firebox
Boiler Diagram Waterloo
Boiler Max Diameter 4' 2"
Boiler Barrel Length 9' 10"
Boiler Pressure 150lbs
Total Heating Area 1102ft2