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Record: 71951 (21/04/2026)
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GSWR/LMS Whitelegg "540" Class 4-6-4T


Class Types
GSWR Class 540

General
Designer Robert Whitelegg
Introduced 1922
Pre-Grouping Company Glasgow and South Western Railway
Grouping Company London, Midland & Scottish Railway
Wheel Arrangement 4-6-4T
Number Built as 540 6
Number Scrapped 6
First in Service 03/1922
Last in Service 09/1936
Manufacturers
ManufacturerTotal
North British Locomotive Company, Glasgow 6
Orders
BuilderSponsorOrder #DateSize
North British Locomotive Company, Glasgow (Unknown)  n/a 1922 6

Power
Variant Introduced 1922
Outside Cylinders 22" x 26" (2 off)
Outside Valves Piston
Outside Motion Walschaerts

Wheels
Pony 3' 6"
Drivers 6'
Truck 3' 6"
Total Wheelbase 39'
Descriptive Wheelbase 7' 0" + 5' 8" + 6' 7" + 6' 7" + 6' 2" + 7' 0" = 39' 0"

Dimensions
Weight (in running order) 99t 1cwt

Boiler & Firebox