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GWR Churchward "Saint" Class 4-6-0


Class Types
GWR Class 2900

General
Designer Churchward
Introduced 1902
Big Four Great Western Railway
Description (1957) Churchward 2-cylinder 4-6-0's, wheel diameter 6' 8½", bulit between 1902 and 1913. Originally a class of 77 engines numbered 2900-2955, 2971-2990 and 2998. Nos. 2971/2, 2979-2990 were constructed as 'Atlantics' and later converted to 4-6-0's. Successive batches were named after 'Ladies', 'Saints', 'Courts', and sundry names associated with Sir Walter Scott's novels, but the whole class was generally known as 'Saints'. No. 2925 Saint Martin was rebuilt in 1924 with 6' 0" wheels and renumbered 4900, becoming the prototype of the 'Hall' class. Scrapping commenced in 1931 and the last survivor, No. 2920 Saint David, was withdrawn in 1953.
Wheels 4-6-0
Number Built as 2900 77
First in Service 04/1905
Last in Service 10/1953
Manufacturers
ManufacturerTotal
Swindon Works 77
Orders
BuilderOrder #DateSize
Swindon Works 132 1902 1
Swindon Works 138 1903 1
Swindon Works 145 1903 1
Swindon Works 154 1905 9
Swindon Works 158 1905 10
Swindon Works 164 1906 10
Swindon Works 170 1907 20
Swindon Works 185 1911 10
Swindon Works 189 1912 10
Swindon Works 192 1913 5

Power
No. 100 Standard Saint Atlantic
Variant Introduced 1902 1903 1903
Miscellaneous Differences     4-4-2 wheel arrangement. Basically a Saint with trailing axle instead of 6 coupled. Converted to 4-6-0 standard Saint's between April 1912 - January 1913.
Tractive Effort 20,530lbs
As No. 100
As No. 100
Outside Cylinders 18" x 30" (2 off)
As No. 100
As No. 100
Outside Valves 7.5"Piston
As No. 100
As No. 100
Outside Motion Stephenson
As No. 100
As No. 100

Wheels
No. 100 Standard Saint Atlantic
Pony 3' 2"
As No. 100
As No. 100
Drivers 6' 812"
As No. 100
As No. 100
Truck     4' 112"
Locomotive Wheelbase 27' 2" 27' 1" 27' 7"
Descriptive Wheelbase 7' 2" + 5' 3" + 7' 0" + 7' 9" = 27' 2" (engine only) 7' 0" + 5' 4" + 7' 0" + 7' 9" = 27' 1" (engine only) 7' 0" + 5' 4" + 7' 0" + 8' 3" + 27' 7" (engine only)

Dimensions
No. 100 Standard Saint Atlantic
Weight (in running order) 110t 19cwt 111t 9cwt
As No. 100
Weight (loco only) 67t 16cwt 68t 6cwt 70t 10cwt
Maximum Axle Load 18t 0cwt 18t 0cwt 19t 10cwt
Water Capacity 4,000gal
As No. 100
As No. 100
Coal Capacity 5t 0cwt
As No. 100
As No. 100

Boiler & Firebox
No. 100 Standard Saint Atlantic
Boiler Pitch 8' 6"
As No. 100
As No. 100