Great Northern (UK) Sturrock 7 ft Singles
Great Britain 1860 12 produced
Archibald Sturrock had a total of twelve 2-2-2 express locomotives built by three manufacturers in 1860 and 1861, which had a driving wheel diameter of seven feet. They were at the same time generously sized and very handsomely proportioned, so that they are sometimes described as Sturrock's masterpiece. The long firebox, which was raised compared to the boiler barrel, is clearly visible. The leading axle was now directly under the smokebox. This arrangement was adopted for all further GNR three-axle passenger and express locomotives.
Technical data
General
- Built
- 1860-1861
- Manufacturers
- Kitson & Co., Sharp, Stewart & Co., Robert Stephenson & Co.
- Wheel arrangement
- 2-2-2 (Jenny Lind)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Wheelbase
- 5.49 m
- Service mass
- 35.2 t
- Adhesion mass
- 13.5 t
- Rigid wheelbase
- 5.49 m
- Axle load
- 13.5 t
- Water capacity
- 10,910 l
Boiler
- Firebox surface
- 16.444 m²
- Tube heating surface
- 82.089 m²
- Evaporative heating surface
- 98.533 m²
- Total heating surface
- 98.5 m²
Power plant
- Driver diameter
- 2,134 mm
- Expansion type
- simple expansion
- Cylinders
- two, 432 x 559 mm
Power
- Power source
- steam
Calculated values
- Heating Surface Equivalent
- 180.8 m²
- Cylinder volume/HSE
- 1 : 905.43
- Adhesive weight/Total
- 1 : 2.60
- Firebox/Tube surface
- 1 : 4.99
