Alexandra Docks “Alexandra”
Great Britain 1901 1 produced
The company of Andrew Barclay Sons & Co. was known for manufacturing very robust small shunting and narrow-gauge tank locomotives. These engines mostly went to industrial plants, but also to some larger companies. An example of this was the “Alexandra” built in 1901 for the Alexandra (Newport and South Wales) Docks and Railway. It was a six-coupled, standard-gauge shunter and bore the works number 911 from Barclay. It was also described by the Locomotive Magazine as being extremely stable and had a copper firebox, the material of which being manufactured to the quality standards in the production of artillery shells.
Technical data
General
- Built
- 1901
- Manufacturers
- Andrew Barclay Sons & Co.
- Wheel arrangement
- 0-6-0T (Six-coupled)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Wheelbase
- 3.81 m
- Empty mass
- 31.8 t
- Service mass
- 39.4 t
- Adhesion mass
- 39.4 t
- Rigid wheelbase
- 3.81 m
- Axle load
- 13.1 t
Boiler
- Grate area
- 1.068 m²
- Evaporative heating surface
- 80.361 m²
- Total heating surface
- 80.4 m²
Power plant
- Driver diameter
- 1,295 mm
- Boiler pressure
- 11 bar
- Expansion type
- simple expansion
- Cylinders
- two, 406 x 610 mm
Power
- Power source
- steam
- Estimated power
- 261 kW (355 PS)
- Starting effort
- 72.9 kN
Calculated values
- Factor of adhesion
- 1 : 5.30
- Optimal speed
- 23 km/h
- Power-to-weight ratio
- 6.6 kW/t
- Adhesive weight/Total
- 1 : 1.00
- Tractive force/Heating surface
- 1 : 18.94
- Grate area/Heating surface
- 1 : 75.24
