DRG Class 42
| DRB Class 42 | |
|---|---|
Class 42 in BEM Nördlingen
|
|
| Number(s) | DRG 42 001…2810, 42 0001 + 42 0002 |
| Quantity | 859 |
| Manufacturer | Various |
| Year(s) of manufacture | 1943 - 1949 |
| Retired | 1969 |
| Wheel arrangement | 2-10-0 |
| Axle arrangement | 1'E h2 |
| Type | G 56.17 |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) |
| Length over buffers | 23,000 mm (75 ft 6 in) |
| Service weight | 96.6 t (95.1 long tons; 106.5 short tons) |
| Adhesive weight | 85.5 t (84.1 long tons; 94.2 short tons) |
| Axle load | 17.6 t (17.3 long tons; 19.4 short tons) |
| Top speed | 80 km/h (50 mph) |
| Indicated Power | 1,618 kW (2,170 hp) |
| Driving wheel diameter | 1,400 mm (55.12 in) |
| Leading wheel diameter | 850 mm (33.46 in) |
| No. of cylinders | 2 |
| Cylinder bore | 630 mm (24.80 in) |
| Piston stroke | 660 mm (25.98 in) |
| Boiler Overpressure | 16 bar (1,600 kPa; 230 psi) |
| Grate area | 4.70 m2 (50.6 sq ft) |
| Superheater area | 75.68 m2 (814.6 sq ft) |
| Evaporative heating area | 199.54 m2 (2,147.8 sq ft) |
| Tender | 2'2' T 30 and 2'2' T 32 |
| Water capacity | 30.0 and 32 m3 (1,060 and 1,130 cu ft) |
| Fuel | 10 t (9.8 long tons; 11.0 short tons) coal |
| Auxiliary brake | Yes |
| Parking brake | Yes |
| Locomotive brakes | Knorr single-chamber, compressed-air brakes |
| Train heating | Steam |
| DRG Class 42.90 | |
|---|---|
| Number(s) | DB 42 9000–9001 |
| Quantity | 2 |
| Retired | 1960 |
| Wheel arrangement | 2-10-0 |
| Axle arrangement | 1'E h2 |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) |
| Service weight | 98.7 t (97.1 long tons; 108.8 short tons) |
| Adhesive weight | 87.1 t (85.7 long tons; 96.0 short tons) |
| Axle load | 17.6 t (17.3 long tons; 19.4 short tons) |
| Top speed | 80 km/h (50 mph) |
| Indicated Power | 1,199 kW (1,608 hp) |
| Driving wheel diameter | 1,400 t (1,400 long tons; 1,500 short tons) |
| Leading wheel diameter | 850 t (840 long tons; 940 short tons) |
| No. of cylinders | 2 |
| Cylinder bore | 600 mm (23.62 in) |
| Piston stroke | 660 mm (25.98 in) |
| Boiler Overpressure | 16 bar (1,600 kPa; 230 psi) |
| Grate area | 3.90 m2 (42.0 sq ft) |
| Superheater area | 63.50 m2 (683.5 sq ft) |
| Evaporative heating area | 215.18 m2 (2,316.2 sq ft) |
| Tender | 2'2' T 30 |
| Water capacity | 30.0 m3 (1,060 cu ft) |
The DRB Class 42 was a type of steam locomotive produced for the Deutsche Reichsbahn. It is one of the three main classes of the so-called war locomotives (Kriegslokomotiven), the other two being class 50 and 52.
Seventy of the class were captured during World War II by the Soviet Union; under Russian ownership they were given the classification TL (ТЛ).
These engines, built from 1943 onwards, were the second heavy locomotive class of this type after the DRG Class 52. They were built for duties on routes that were cleared for a higher axle load, because they were more economical there than the KDL 1 Kriegslokomotiven of Class 52. In principle they were slimmed down 44s. The Class 42 was procured as Kriegslokomotive KDL 3.
The total of 859 units had a number of improvements to the driving and running gear. Originally it was intended to build very large numbers of these engines, but the end of the Second World War put paid to that. A condenser locomotive, based on the Class 42 was also planned, but did not come to fruition.
At the end of the war there were still half-finished engines in the workshops. So after 1945, 16 engines were built for the Reichsbahn in the western zone by the Maschinenfabrik Esslingen ('Esslingen Locomotive Works'). 126 engines were built by Polish factories for the PKP in Poland as Class Ty43 and three ex DRG engines also went over to the PKP as Class Ty3. Another 76 units were produced by the Lokomotivfabrik Floridsdorf in Vienna. These were not built for the Austrian Federal Railways (ÖBB), but were sold in 1949 to the CFL in Luxembourg - 20 engines (CFL class 55), in 1952 to Bulgarian State Railways (BDZ) - 33 pcs (BDZ class 16). and the rest to DR and various industrial enterprises in East Germany.
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