GWR Leo Class

GWR Leo class

Type and origin
Power type	Steam
Designer	Daniel Gooch
Builder	Rothwell & Co. (12) R. & W. Hawthorn & Co. (3) Fenton, Murray & Jackson (3)
Total produced	18

Specifications
Configuration	2-4-0
UIC class	1B n2
Gauge	7 ft ¹⁄₄ in (2,140 mm)
Leading dia.	3 ft 6 in (1.067 m)
Driver dia.	5 ft 0 in (1.524 m)
Wheelbase	Loco: 12 ft 9 in (3.886 m)
Firebox: • Firegrate area	11.5 sq ft (1.07 m²)
Boiler	50 lbf/in² (340 kPa)
Heating surface: • Tubes	396 sq ft (36.8 m²)
• Firebox	71 sq ft (6.6 m²)
Cylinder size	15 in × 18 in (381 mm × 457 mm)

Performance figures
Tractive effort	2,868 lbf (12.76 kN)

Career
Operators	Great Western Railway
Disposition	All scrapped

The Great Western Railway Leo Class 2-4-0 was a class of broad gauge steam locomotives for goods train work. This class was introduced into service between January 1841 and July 1842, and withdrawn between September 1864 and June 1874.

These locomotives were the first for the railway with coupled wheels as they were designed as goods locomotives, but they later found use on passenger trains too. All the class were altered to 2-4-0ST saddle tanks.

The locomotives were built by three different workshops, each with its own naming convention. The first three came from R and W Hawthorn and Company, who named them after strong animals. The next three were named after volcanoes by Fenton, Murray and Jackson, while the final twelve came from Rothwell and Company carrying the names of the twelve houses of the zodiac.

Locomotives

Name	Manufacturer	Serial Nº	Built	Withdrawn	Notes
Elephant	R. & W. Hawthorn & Co.	319	000000001841-01-01-0000January 1841	000000001870-12-01-0000December 1870
Buffalo	R. & W. Hawthorn & Co.	320	000000001841-03-01-0000March 1841	000000001865-04-01-0000April 1865
Dromedary	R. & W. Hawthorn & Co.	321	000000001841-03-01-0000March 1841	000000001866-12-01-0000December 1866
Hecla	Fenton, Murray and Jackson	35	000000001841-04-01-0000April 1841	000000001864-09-01-0000September 1864	^{[Note 1]}
Stromboli	Fenton, Murray and Jackson	36	000000001841-04-01-0000April 1841	000000001870-07-01-0000July 1870
Etna	Fenton, Murray and Jackson	37	000000001841-06-01-0000June 1841	000000001870-12-01-0000December 1870
Aries	Rothwell and Company	66	000000001841-06-01-0000June 1841	000000001871-06-01-0000June 1871
Taurus	Rothwell and Company	67	000000001841-07-01-0000July 1841	000000001870-12-01-0000December 1870	^{[Note 2]}
Gemini	Rothwell and Company	68	000000001841-09-01-0000September 1841	000000001866-03-01-0000March 1866
Cancer	Rothwell and Company	69	000000001841-10-01-0000October 1841	000000001874-06-01-0000June 1874
Leo	Rothwell and Company	70	000000001841-10-01-0000October 1841	000000001870-12-01-0000December 1870
Virgo	Rothwell and Company	71	000000001841-12-01-0000December 1841	000000001870-12-01-0000December 1870
Libra	Rothwell and Company	72	000000001842-02-01-0000February 1842	000000001871-06-01-0000June 1871
Scorpio	Rothwell and Company	73	000000001842-02-01-0000February 1842	000000001872-12-01-0000December 1872
Sagittarius	Rothwell and Company	74	000000001842-04-01-0000April 1842	000000001871-06-01-0000June 1871	^{[Note 3]}
Capricornus	Rothwell and Company	75	000000001842-04-01-0000April 1842	000000001870-07-01-0000July 1870	^{[Note 4]}
Aquarius	Rothwell and Company	76	000000001842-06-01-0000June 1842	000000001870-07-01-0000July 1870
Pisces	Rothwell and Company	77	000000001842-07-01-0000July 1842	000000001874-06-01-0000June 1874	^{[Note 5]}

Notes

↑ Hecla: On 24 December 1841 it was involved in a fatal accident in Sonning Cutting near Reading. It was hauling a so-called "baggage train" consisting of both passenger and goods trucks, when it ran into an earth slip in the cutting, killing eight passengers. At the coroner's inquest on the passengers killed the jury returned a verdict of accidental death in all cases and a deodand of one thousand pounds on the engine, tender and carriages. The deodand was later overturned.
↑ Taurus: worked the first South Devon Railway train from Newton to Torquay on 18 December 1848.
↑ Sagittarius: worked the first train to Warminster on 9 September 1851.
↑ Capricorn: Along with Pisces, worked the first train from Totnes to Laira, the temporary terminus of the South Devon Railway at Plymouth on 5 May 1848.
↑ Pisces:Along with Capricornus, worked the first train from Totnes to Laira, the temporary terminus of the South Devon Railway at Plymouth on 5 May 1848.

References

Reed, P. J. T. (February 1953). White, D. E., ed. The Locomotives of the Great Western Railway, Part 2: Broad Gauge. Kenilworth: RCTS. pp. B16–B17. ISBN 0-901115-32-0.

Great Western Railway locomotives

Swindon
Broad gauge

Brunel: (1833–1837)	Haigh Foundry Mather, Dixon Sharp, Roberts Charles Tayleur Hurricane Thunderer

Gooch: (1837–1864)	Ariadne Banking Bogie Caesar Firefly Hercules Iron Duke Leo Metropolitan Premier Prince Pyracmon Star Sun Victoria Waverley

J. Armstrong: (1864–1877)	Hawthorn Rover Sir Watkin Standard Goods Swindon 1076

Dean: (1877–1902)	Experimental locomotives (8, 14, 16) 3001 3501 3521

Wolverhampton
Standard gauge

J. Armstrong: (1854–1864)	7/8/30/110 17 111 302

G. Armstrong: (1864–1897)	34 108 119 322 (tank) 517 633 645 655 850 1016 1901 3571

Swindon
Standard gauge

Gooch: (1855–1864)	57 69 77/167 79 91 93 131/310 149 England/Chancellor 157 Sharps 320 322 Beyer

J. Armstrong: (1864–1877)	55 Queen/Sir Alexander 455 Metro Tank 56/717 927 Coal Goods 360 378 Sir Daniel 388 Standard Goods 439 Bicycle 481 806 1076

Dean: (1877–1902)	Experimental locomotives (1, 7, 9, 10, 13) Armstrong 36 69 River 157 Sharpies/Cobham 1661 1813 1854 2021 2201 2301 2361 2602 Kruger 2600 Aberdare 2721 3031 Dean Single 3201 3206 3232 3252 Duke 3300 Bulldog 3521 3600 4100 Badminton

Churchward: (1902–1921)	102 La France 103 President 111 The Great Bear 1361 2221 County Tank 2800 2900 Saint 3100 (later 5100) 3150 3700 City 3800 County 4000 Star 4200 4300 4400 4600 4500 4700 Rail motors

Collett: (1922–1941)	1101 1366 2251 2884 3000 (ex-ROD 2-8-0) 3100 3200 (later 9000) Earl 4073 Castle 4575 4800 (later 1400) 4900 Hall 5101 5205 5400 5600 5700 5800 6000 King 6100 6400 6800 Grange 7200 7400 7800 Manor 8100 Diesel railcars Diesel shunters

Hawksworth: (1941–1947)	1000 County 1500 1600 6959 Modified Hall 9400

By wheel
arrangement

(grouped):	0-4-0ST 0-6-0PT 0-6-2T 2-6-2T

Absorbed
locomotives

Barry Railway:	A B B1 C D E F G H K J L

Rhymney Railway:	A AP B I K L L1 M P P1 R S S1

Taff Vale Railway:	A C D E H K L M1 N O O1 O2 O3 O4 S T U U1 V

Narrow gauge
locomotives

Corris Railway:	3 4

Welshpool and Llanfair Light Railway:	822–823

Vale of Rheidol Railway:	7–9

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