GWR 6400 Class
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 The Aberystwyth station pilot, 7428, still lettered GWR 13 years after nationalisation, 1 August 1961 |
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| Power type | Steam |
|---|---|
| Designer | Collett |
| Builder | GWR |
| Build date | 6400, 1932 7400, 1936 |
| Total production | 6400, 40 7400, 50 |
| Configuration | 0-6-0PT |
| Gauge | 4' 8½" |
| Driver size | 4' 7½" |
| Locomotive weight | 6400, 45 tons 12 cwt, 7400, 45 tons 9 cwt |
| Fuel type | coal |
| Boiler pressure | 180 psi |
| Cylinders | two inside |
| Cylinder size | 16½"x24" |
| Tractive effort | 18,010 lbf |
| Class | 6400, 2P 7400, 2F |
The Great Western Railway (GWR) 6400 Class is a class of 0-6-0 pannier tank steam locomotive introduced by Charles Collett in 1932. All 40 examples were 'auto-fitted' – equipped with the remote-control equipment needed for working autotrains. The 1936 GWR 7400 Class was very similar but had no push-pull (autotrain) apparatus.
Both classes were closely related to the 1930 GWR 5400 Class and in turn an evolution of both the Armstrong 1874 GWR 850 Class and the Dean 1891 GWR 2021 Class. Thus the basic design was almost sixty years old when new, the 4' 7½" driving wheels being the main distinguishing factor, apart from the more modern profile.
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[edit] Overview
The smaller wheels permitted operation in hillier locations than the 5400 Class and allocations were initially to the South Wales valleys.
Engines of class 6400 worked on many of the ex-GWR branch lines in Devon and Cornwall until the early 1960s, when the lines closed or diesel multiple units took over services. Number 6430 was a regular engine on the old Tavistock South branch line and would often run with two autocoaches.
[edit] Numbering
There were 40 locomotives in the 6400 Class, numbered 6400-6439[1] and 50 locomotives in the 7400 Class, numbered 7400-7449[1]
[edit] Preservation
Three of the 6400 Class have survived to preservation:
- 6412 The Flockton Flyer West Somerset Railway
- 6430 Llangollen Railway
- 6435 Ajax Paignton and Dartmouth Steam Railway
[edit] References
[edit] See also
- GWR 0-6-0PT – list of classes of GWR 0-6-0 pannier tank, including table of preserved locomotives
[edit] External links
- 6400 Class
- General
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