BA 21-28
| BA 21-28 / CP 24-27 | |
|---|---|
 Diagram of BA 21–28
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| Numbering: | BA 21-28 CP 24-27 |
| Number: | BA: 8 CP: 4 (from BA) |
| Manufacturer: | Wr. Neustadt |
| Year of construction (s): | 1881 |
| Axis formula : | 1B n2 |
| Gauge : | 1,672 mm |
| Length over buffers: | 8,200 mm |
| Height: | 4,300 mm |
| Fixed wheelbase: | 3,500 mm |
| Total wheelbase: | 3,500 mm |
| Empty mass: | 29.24 t |
| Service mass: | 32.60 t |
| Starting tractive effort: | 4000 kg |
| Driving wheel diameter: | 1,650 mm |
| Impeller diameter: | 1,120 mm |
| Number of cylinders: | 2 |
| Cylinder diameter: | 430 mm |
| Piston stroke: | 610 mm |
| Cup length: | 6,580 mm |
| Boiler overpressure: | 9.0 atm |
| Number of heating pipes: | 167 |
| Heating pipe length: | 4,250 mm |
| Grate area: | 1.54 m² |
| Radiant heating surface: | 7.0 m² |
| Tubular heating surface: | 111.5 m² (in contact with water) |
| Evaporation heating surface: | 118.5 m² |
| Brake: | Vacuum brake |
The BA 21-28 were Tender - locomotives of Companhia dos Caminhos de Ferro de Beira Alta (BA), a Portuguese private company.
The eight machines were delivered by the Wiener Neustädter Lokomotivfabrik in 1881 . The spacious steam dome was on the first boiler section. The safety valves were installed above the standing tank in the driver's cab, which actually only consisted of a roof. The first drive axis was sanded from the sand dome located on the second boiler section.
The locomotives were given operating numbers 21–28 at the BA. After the nationalization of the BA in 1948, the four remaining vehicles of this series were classified as 24-27 of the Companhia dos Caminhos de Ferro de Portugueses (CP). All four were retired in 1950.
literature
- John R. Walker: Broad Gauge Steam Locomotives of Portugal . Amadeus, Cleckheaton 2005, ISBN 978-0-9551748-0-3 .
- Locomotiv types produced in the Locomotiv factory Wr.-Neustadt 1875–1898 . Wiener Neustadt 1898.