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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 This class was introduced into service between January 1841 and July 1842, and withdrawn between September 1864 and June 1874.

GWR Leo class
Type and origin
Power typeSteam
DesignerDaniel Gooch
BuilderRothwell & Co. (12)
R. & W. Hawthorn & Co. (3)
Fenton, Murray & Jackson (3)
Total produced18
Specifications
Configuration:
​
 • Whyte2-4-0
 • UIC1B n2
Gauge7 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)
WheelbaseLoco: 12 ft 9 in (3.886 m)
Firebox:
 • Firegrate area		11.5 sq ft (1.07 m2)
Boiler50 lbf/in2 (340 kPa)
Heating surface:
 • Tubes		396 sq ft (36.8 m2)
 • Firebox71 sq ft (6.6 m2)
Cylinder size15 in × 18 in (381 mm × 457 mm)
Performance figures
Tractive effort2,868 lbf (12.76 kN)
Career
OperatorsGreat Western Railway
Withdrawn1864 - 1874
DispositionAll scrapped

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 2-4-0STs.

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Nº		 Built Withdrawn Notes
ElephantR. & W. Hawthorn & Co. 319January 1841December 1870
BuffaloR. & W. Hawthorn & Co. 320March 1841April 1865
DromedaryR. & W. Hawthorn & Co. 321March 1841December 1866
HeclaFenton, Murray and Jackson 35April 1841September 1864[Note 1]
StromboliFenton, Murray and Jackson 36April 1841July 1870
EtnaFenton, Murray and Jackson 37June 1841December 1870
AriesRothwell and Company 66June 1841June 1871
TaurusRothwell and Company 67July 1841December 1870[Note 2]
GeminiRothwell and Company 68September 1841March 1866
CancerRothwell and Company 69October 1841June 1874
LeoRothwell and Company 70October 1841December 1870
VirgoRothwell and Company 71December 1841December 1870
LibraRothwell and Company 72February 1842June 1871
ScorpioRothwell and Company 73February 1842December 1872
SagittariusRothwell and Company 74April 1842June 1871[Note 3]
CapricornusRothwell and Company 75April 1842July 1870[Note 4]
AquariusRothwell and Company 76June 1842July 1870
PiscesRothwell and Company 77July 1842June 1874[Note 5]

Notes


  1. 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.
  2. Taurus: worked the first South Devon Railway train from Newton to Torquay on 18 December 1848.
  3. Sagittarius: worked the first train to Warminster on 9 September 1851.
  4. 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.
  5. 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




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