Alsace-Lorraine A 8 and A 9
Alsace-Lorraine P 2
Germany 1874 42 produced
Due to an urgent need for locomotives, the Alsace–Lorraine Imperial Railways turned to other manufacturers in 1874. So they ordered 16 2-4-0 passenger locomotives from Kitson at Leeds and 26 from Esslingen. Originally, the British locomotives were designated A 8 and the German locomotives were designated A 9. In the system introduced in 1906, they were renamed P 2.
They had a raised Belpaire firebox, a huge steam dome and a capuchon chimney with a lip on the forward edge. Originally they only had a Ricour type steam brake, but got air brakes later. Despite a driver diameter of only 5 ft 9 in (1,752 mm), they were also used in express service. Their withdrawals started in World War I and were completed by 1920.
Technical data
General
- Built
- 1874
- Manufacturers
- Kitson & Co., Esslingen
- Wheel arrangement
- 2-4-0 (Porter)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Wheelbase
- 4.40 m
- Service mass
- 38.7 t
- Adhesion mass
- 25.4 t
- Rigid wheelbase
- 4.40 m
- Axle load
- 12.7 t
- Water capacity
- 9,500 l
Boiler
- Grate area
- 1.46 m²
- Evaporative heating surface
- 102.66 m²
- Total heating surface
- 102.7 m²
Power plant
- Driver diameter
- 1,752 mm
- Boiler pressure
- 10 bar
- Expansion type
- simple expansion
- Cylinders
- two, 430 x 576 mm
Power
- Power source
- steam
- Estimated power
- 300 kW (408 PS)
- Top speed
- 85 km/h
- Starting effort
- 51.7 kN
Calculated values
- Factor of adhesion
- 1 : 4.82
- Optimal speed
- 35 km/h
- Power-to-weight ratio
- 7.8 kW/t
- Adhesive weight/Total
- 1 : 1.52
- Tractive force/Heating surface
- 1 : 10.51
- Grate area/Heating surface
- 1 : 70.32
