Baden VIII c
| Baden VIII c | ||
|---|---|---|
 |
||
| Numbering: | 518 and 519 | 538-549, 629-634, 691-702 |
| Number: | 2 | 30th |
| Manufacturer: | Grafenstaden | MBG Karlsruhe , Esslingen |
| Year of construction (s): | 1893 | 1895, 1899, 1900 |
| Retirement: | until 1925 | |
| Design type: | B'B n4v | |
| Gauge : | 1,435 mm | |
| Length over buffers: | 16,760 mm | |
| Height: | 4150 mm | |
| Total wheelbase: | 5800 mm | |
| Wheelbase with tender: | 12,300 mm | |
| Empty mass: | 51.6 t | |
| Service mass: | 57.8 t | |
| Friction mass: | 57.8 t | |
| Wheel set mass : | 14.45 t | |
| Top speed: | 45 km / h | |
| Coupling wheel diameter: | 1,260 mm | |
| Control type : | Heusinger | |
| Number of cylinders: | 4th | |
| LP cylinder diameter: | 600 mm | |
| HD cylinder diameter: | 390 mm | |
| Piston stroke: | 600 mm | |
| Boiler overpressure: | 12.0 bar | 13.0 bar |
| Number of heating pipes: | 206 | |
| Heating pipe length: | 4300 mm | |
| Grate area: | 1.96 m² | 1.93 m² |
| Radiant heating surface: | 10.38 m² | 9.66 m² |
| Tubular heating surface: | 125.23 m² | |
| Evaporation heating surface: | 135.61 m² | 134.89 m² |
| Brake: | Westinghouse air brake | |
The steam locomotives of type VIII c of the Grand Ducal Baden State Railroad were freight locomotives of the Mallet type .
The machines were developed by the Elsässische Maschinenbau-Gesellschaft Grafenstaden for the Black Forest Railway. With the mallet design, attempts were made to achieve high performance and good cornering behavior at the same time. This should make the use of leader locomotives unnecessary.
The locomotives ran very unevenly and showed a strong tendency to skid. The maintenance costs were also higher than with comparable locomotives. After the delivery of the two copies from Grafenstaden, twelve locomotives were built by the Karlsruhe engineering company in 1895 and 18 by the Esslingen machine factory in 1899/1900.
Nine locomotives had to be given in as reparations after the First World War. Eight machines came to France and were given the numbers 4751 to 4758 at the Chemin de Fer de l'Est , one locomotive came to Belgium. This was given the number B 9900. In the Deutsche Reichsbahn's redesignation plan for regional railway locomotives , the locomotives were assigned the series designation 55.61. Since all locomotives had been taken out of service by 1925, they had to be renamed.
Constructive features
The locomotives had an internal sheet metal frame. The riveted long boiler consisted of three shots. The steam dome with the valve regulator was on the middle shot. There was a sandpit in front of and behind it. The inlet pipes were arranged on the outside. The engine was designed as a four-cylinder wet steam compound engine. The horizontally external low-pressure cylinders acted on the front pair of wheels and the high-pressure cylinders on the rear. The power was transmitted to the rear coupling axle. The cross head was guided by two rails. The Heusinger control was external.
For cushioning, a couple of leaf springs were used for each coupling axle, which were located below the axle bearings. The two springs of the two pairs of wheels were connected by means of compensating levers. The locomotives had air brakes of the Westinghouse type. The rear axles were braked from the front.
The machines were equipped with type bad 3 T 13.5 or bad 3 T 14 tenders .
literature
- Hermann Lohr, Georg Thielmann: Baden locomotive archive . transpress, Berlin 1988, ISBN 3344002104