Fri 19 Jan 2018 01:44:39


British Railway Steam Locomotive

Please read this statement on the accuracy of the data shown below

Note: To Obtain Consistency in the Steam System, Shed Codes used are those Registered at Nationalisation on 1st January 1948
Number 1019
2nd Grouping Number
1st Grouping Numbergwr 1019
2nd Pre Grouping Number
1st Pre Grouping Number
Works/Lot Number
NameCounty of Merioneth
Class Code1000
DesignerHawksworth FW
BuilderSwindon Works (GWR/British Railways)
1948 Shed83G Penzance
Last Shed84G Shrewsbury
Disposal detailsCashmores, Great Bridge.
DisposalCut Up
Disposal Date31/01/1964

Class Information

Introduced 1945, Built 1945-47. Designed by Frederick W. Hawksworth "County" design.

Total Number Built 30 - Total to BR 30.

Introduced August 1945. Hawksworth County 4-6-0 design. Boiler pressure subsequently reduced to 250lb/sq in. All fitted with double chimney from 1955. Classification 6MT.

When it appeared, the class was not so different from Great Western traditions as had been rumoured. The main new features were the double blast pipe and chimney, a non standard coupled wheel diameter of 6' 3" and a high boiler pressure of 280lb. The first engine No. 1000 County of Middlesex was the only one built with a copper capped double chimney and blastpipe and in this state it was a poor performer. After tests and alteration to draughting in 1954 the rest of the class, which had single chimneys, received squat copper capped double chimneys which ruined their appearance but improved the performance.

The power from the two cylinders was roughly equivalent to the four cylinders of the Castle Class. This caused a considerable increase in 'hammer blow', which together with the weight of the coupled whhels of 19tons 14cwt per axle, resulted in the class having speed restrictions on all routes other than those where King Class locos were permitted.

In their early days, all tended to be allocated to sheds covering the Paddington to Penzance and Paddington to Wolverhampton routes. Eventually these restrictions were lifted to some degree resulting in the class having a wider sphere of operation.

The reason for the construction of the class in the first place is not entirely clear, as the work they carried out was inferior to the Castles.

Number Series 1000-1029.

Built at GWR Swindon Works.

1000-1007 Lot No. 354 1945
1007-1019 Lot No. 354 1946
1020-1029 Lot No. 358 1947

The first disposals came in September 1962 when 1004, 1018 and 1026 were withdrawn from Penzance, Didcot and Shrewsbury sheds respectively. The last loco in service was 1011 County of Chester withdrawn in November 1964 from Swindon shed. None are preserved.

Motive Power Details
Loco 76 tons 17 cwt
Tender 49 tons 0 cwt
Driving Wheel: 6' 3"
Boil Press: 280lb/sq in Su
Cylinders: Two 18?" x 30" (outside)
Valve Gear: Stephenson (piston valves)
TE: 32,580 lb

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