DRG Class 03
| DRG Class 03 | |
|---|---|
03 001
|
|
| Number(s) | 03 001–298 |
| Quantity | 298 |
| Wheel arrangement | 4-6-2 |
| Axle arrangement | 2′C1′ h2 |
| Type | 03 001–122: S 36.17 03 123–298: S 36.18 |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) |
| Length over buffers | 23.905 m (78 ft 5 in) |
| Empty weight | 03 001–162: 90.4 tonnes (89.0 long tons; 99.6 short tons) 03 163–298: 91.0 tonnes (89.6 long tons; 100.3 short tons) |
| Service weight | 03 001–122: 99.6 tonnes (98.0 long tons; 109.8 short tons) 03 123–298: 100.3 tonnes (98.7 long tons; 110.6 short tons) |
| Adhesive weight | 03 001–122: 53.0 tonnes (52.2 long tons; 58.4 short tons) 03 123–298: 54.3 tonnes (53.4 long tons; 59.9 short tons) |
| Axle load | 03 001–162: 17.7 tonnes (17.4 long tons; 19.5 short tons) 03 163–298: 18.1 tonnes (17.8 long tons; 20.0 short tons) |
| Top speed | 03 001–162: 120 km/h (75 mph) 03 163–298: 130 km/h (81 mph) Reverse: 50 km/h (31 mph) |
| Indicated Power | 1,970 PS (1,449 kW; 1,943 hp) |
| Starting tractive effort | wasser |
| Driving wheel diameter | 2,000 mm (78.74 in) |
| Leading wheel diameter | 03 001–162: 850 mm (33.46 in) 03 163–298: 1,000 mm (39.37 in) |
| Trailing wheel diameter | 1,250 mm (49.21 in) |
| No. of cylinders | Two |
| Cylinder bore | 570 mm (22.44 in) on 03 001-003 originally 600 mm (23.62 in) |
| Piston stroke | 660 mm (25.98 in) |
| Boiler Overpressure | 16.0 bar (1.60 MPa; 232 psi) |
| Grate area | 3.97 m2 (42.7 sq ft) |
| Superheater area | 70.00 m2 (753.5 sq ft) |
| Evaporative heating area | 201.96 m2 (2,173.9 sq ft) |
| Tender | 2′2 T30/32/34 |
| Water capacity | 30 m3 (1,100 cu ft) 32 m3 (1,100 cu ft) 34 m3 (1,200 cu ft) |
| Fuel | Coal |
| Brakes | automatic, single-chamber Knorr compressed air brakes to 03 162 coupled and bogie wheels, one-sided, from 03 163 both sides of coupled wheels and one-sided on trailing wheels |
| Auxiliary brake | yes |
| Train heating | Steam |
| Train control | outside Walschaerts valve gear |
| Features | some engines could run at 140 km/h (87 mph) |
The Class 03 steam engines were standard express train locomotives (Einheitslokomotiven) in service with the Deutsche Reichsbahn.
The Class 03 engines were built between 1930 and 1938 as express train locomotives for routes that were only suitable for axle loads of up to 18 tonnes. 298 examples of this engine, whose construction was based on the Class 01, were built by the firms of Borsig, Krupp, Henschel, and Schwartzkopff.
Its reduced weight was achieved by the use of a light sectional frame, smaller boiler and smaller cylinders. From engine number 03 123 onwards the pumps were located in the centre of the locomotive and from number 03 163 the locos had larger leading wheels.
Locomotive number 03 154 was equipped with a parabolic smokebox door, a tapered driver's cab and driving gear cover plates. Number 03 193 was given a wine-red, streamlined, full covering and a 2′3 T 37 St tender, in order to replace the Class 05. 03 204 and 03 205 had driving gear cover plates for experimental purposes. Locomotive numbers 03 175 and 03 207 had Lentz valve gear, also as an experiment.
Until 1959, 145 Class 03 locomotives were in the Deutsche Bundesbahn's operating fleet, of which 62 engines (03 005 to 03 122) had air and feed pumps on the smokebox, small leading wheels (850 mm diameter) and a top speed of 120 km/h, 16 machines (03 127 to 03 160) had air and feed pumps between the middle and rear driving wheels, small leading wheels (850 mm diameter) and a top speed of 120 km/h and 67 engines (03 164 to 03 296) had air and feed pumps between the middle and rear driving wheels, scissor-block brakes (Scherenklotzbremsen), large leading wheels (1,000 mm diameter) and a top speed of 130 km/h.
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Wikipedia