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GWR Collett "7800" Class 4-6-0


Class Types
GWR Class 7800

General
Designer Charles Collett
Introduced 1938
Grouping Company Great Western Railway
Description (1957) 2-cylinder 4-6-0's, with 5' 8" wheels, a slightly lighter version of the 'Granges', designed by Collett for use over main and cross-country lines restricted against the use of heavy engines, such as the former Cambrian and M. & S.W.J.R. systems. Nos 7800-7819 were built in 1938-39 and Nos. 7820-7829 in 1950. The original intention was to construct 100 engines of each of the 'Grange' and 'Manor' classes to be numbered 6800-6899 and 7800-7899. They were intended to replace the use of the '4300' class for passenger work. The order was suspended at the outbreak of war and apart from constructing ten further 'Manors' in 1950, no more were built and the order was never completed.
Wheel Arrangement 4-6-0
Number Built as 7800 30
First in Service 01/1938
Last in Service 12/1965
Manufacturers
ManufacturerTotal
Swindon Works 30
Orders
BuilderSponsorOrder #DateSize
Swindon Works  316 1937 20
Swindon Works  377 1949 10

Power
Variant Introduced 1938

Wheels

Dimensions

Boiler & Firebox