Английская Википедия:GWR 6400 Class

Содержание

Текст

Текст

Текст

Текст

Текст

Текст

Текст

Текст

Текст

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 a similar class, without the autotrain apparatus, but with a higher boiler pressure of 180 psi, providing a small but useful increase in power. An initial build of 30 in 1936-1937 was added to by British Railways in two batches each of ten locos in 1948 and 1950. These were destined for a short life, the briefest being only nine years. A minor visual difference between the 5400 and earlier 6400, and the later series of 6400, with the 7400 classes was at the join between cab and bunker. The 5400 and early 6400 had an arc whereas the later 6400 and the 7400 class was straight. The early locos also had a lip at the leading edge of the cab roof, whereas the later locos had a plain corner edge.

Both classes were closely related to the 1930 GWR 5400 Class, which was 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 Шаблон:Convert driving wheels being the main distinguishing factor, apart from the more modern profile. There were also superficial similarities with the GWR 645 Class as extant in the 1930s, that also had Шаблон:Convert wheels and Шаблон:Convert stroke cylinders (and by then pannier tanks and full cabs).

Table of orders and numbersШаблон:Sfnb

Year	Quantity	Lot No.	Locomotive numbers	Notes
1932	10	277	6400–6409
1934–35	15	294	6410–6424
1935	5	300	6425–6429
1937	10	305	6430–6439
1936–37	30	307	7400–7429
1948	10	371	7430–7439
1950	10	380	7440–7449

Operations

The smaller wheels of the 6400's 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 around Plymouth until the early 1960s, when the lines closed or diesel multiple units took over services. No. 6430 was a regular engine on the old Tavistock South branch line and would often run with two autocoaches. No. 6412 was allocated at Gloucester Horton Rd loco shed (85B) and operated one of the last 'Chalford Railcar' autotrain services between Gloucester and Chalford on 31 October 1964.

Being allocated to Plymouth Laira the type was trialled on the former Lostwithiel and Fowey Railway, although a 1400 Class 0-4-2 engine was normally used.

Numbering

There were 40 locomotives in the 6400 Class, numbered 6400-6439Шаблон:Page needed and 50 locomotives in the 7400 Class, numbered 7400-7449.Шаблон:Page needed

Withdrawal

The below list shows when all of the original 6400's and later 7400's were withdrawn from service. The members of the GWR 6400 Class and the GWR 7400 Class were No. 6419 and No. 7439 respectively.

Table of withdrawals

Year	Quantity in service at start of year	Quantity withdrawn	Cumulative quantity withdrawn	Locomotive numbers
1958	90	3	3	6407/23/27
1959	87	16	19	6402/04–05/09/14/17/20/28/32, 7401/11/15–16/20/38/47
1960	71	5	24	6401/06/39, 7400/19
1961	66	11	35	6411/13/15/25–26, 7409–10/17/21/29/33
1962	55	15	50	6408/10/18/22/29/36/38, 7402/06/08/22/25/28/34/40
1963	40	15	65	6403/16/21/31/33/37, 7405/07/12/26/30/41–42/48–49
1964	25	23	88	6400/12/19/24/30/34–35, 7403–04/13–14/18/23–24/27/31–32/35–36/43–46
1965	2	2	90	7437/39

Preservation

Three of the 6400 Class have survived to preservation:

Number	Built	Withdrawn	Service Life	Location	Owners	Livery	Condition	Photograph	Notes
6412	Nov 1934	Nov 1964	30 Years	South Devon Railway	South Devon Railway	BR Lined Green, Late Crest	Operational, Boiler Ticket Expires: 2024	Файл:0-6-0PT 6412 GWR - Built 1934 (21197409460).jpg	Starred in the TV series The Flockton Flyer
6430	Mar 1937	Oct 1964	27 Years, 7 months	South Devon Railway	Hugh Skipton	BR Lined Green, Early Emblem	Operational, Boiler Ticket Expires: 2025	Файл:6430 at Carrog Station.jpg	One of the few engines to escape Cashmore's scrapyard thanks to a last minute rescue by the Dart Valley Railway. Originally purchased as a source of spares for No. 6412 and No. 6435, the locomotive was eventually restored to working order in 2003.
6435	Apr 1937	Oct 1964	27 Years, 5 months	West Somerset Railway	Jon Jones-Pratt	BR Lined Green, Late Crest	Stored, Boiler Ticket Expired: 2022	Файл:Minehead - 6435 going to shed.JPG	Briefly named Ajax during the early and mid-2000s. Changed ownership from Bodmin and Wenford Railway in January 2024 with plans for a return to service. Will later be based at West Somerset Railway. Last ran in 2022 following expiry of its boiler ticket.

In fiction

A 6400 Class loco (no. 6412) was the title character of the British 1970s TV series The Flockton Flyer, which was filmed on the West Somerset Railway where the preserved locomotive was based. (No. 6412 was relocated to the South Devon Railway in 2009.)

Models

Шаблон:Unreferenced section Dapol manufacture a model of the 64xx in O scale. Bachmann have recentlyШаблон:When begun producing models in OO gauge with no. 6407 in GWR unlined green, no. 6417 in BR unlined black and no. 6412 in BR lined Brunswick Green, with an N gauge version (under the Graham Farish brand) to follow shortlyШаблон:When with no. 6407 in GWR unlined green, no. 6403 in BR unlined black and no. 6400 in BR lined Brunswick Green.

See also

• GWR 0-6-0PT – list of classes of GWR 0-6-0 pannier tank, including table of preserved locomotives

References

• Шаблон:RCTS-LocosGWR-1
• Шаблон:Cite book

External links

• No. 6412 at the South Devon Railway
• No. 6430 at the Llangollen Railway
• No. 6435 at the Bodwin & Wenford Railway Шаблон:Webarchive
• Guide to GWR Pannier Tank Classes