DR Class 58.30

After the Second World War, the Deutsche Reichsbahn in East Germany had a requirement for powerful goods train locomotives with a 15-18 tonne axle load for routes in the Mittelgebirge, the mountainous areas in the south of the country. As a result, the DR Class 58.30 emerged, as part of the so-called 'reconstruction programme', based on rebuilds of the former Prussian G 12 locomotives (later DRG Class 58.2-5, 10-21). Between 1958 and 1962, 56 locomotives, originally from various state railways (even several former Alsace locomotives) were converted at the former repair shop, RAW Zwickau.

DR Class 58.30
58 3047 in Leipzig/Engelsdorf
Number(s)	58 3001 - 58 3056
Quantity	56
Manufacturer	Raw Zwickau
Year(s) of manufacture	1958 - 1962
Retired	1981
Wheel arrangement	2-10-0
Axle arrangement	1′E h3
Type	G 56.16
Track gauge	1,435 mm (4 ft 8 1⁄2 in)
Length over buffers	22,110 mm (72 ft 6 1⁄2 in)
Height	4,550 mm (14 ft 11 1⁄8 in)
Overall wheelbase	8,800 mm (28 ft 10 1⁄2 in)
Empty weight	88.0 tonnes (86.6 long tons; 97.0 short tons)
Service weight	97.2 tonnes (95.7 long tons; 107.1 short tons)
Service weight incl. tender	160.5 tonnes (158.0 long tons; 176.9 short tons)
Adhesive weight	83.3 tonnes (82.0 long tons; 91.8 short tons)
Axle load	16.7 tonnes (16.4 long tons; 18.4 short tons)
Top speed	70 km/h (43 mph)
Indicated Power	1,190 kW (1,620 PS; 1,600 hp)
Driving wheel diameter	1,400 mm (4 ft 7 1⁄8 in)
Leading wheel diameter	1,000 mm (3 ft 3 3⁄8 in)
No. of cylinders	Three
Cylinder bore	570 mm (22 7⁄16 in)
Piston stroke	660 mm (26 in)
Boiler Overpressure	16 bar (1.60 MPa; 232 psi)
No. of heating tubes	124
No. of smoke tubes	38
Heating tube length	4,700 mm (15 ft 5 in)
Grate area	3.71 m2 (39.9 sq ft)
Radiative heating area	17.9 m2 (193 sq ft)
Tube heating area	154.4 m2 (1,662 sq ft)
Superheater area	65.4 m2 (704 sq ft)
Evaporative heating area	172.3 m2 (1,855 sq ft)
Tender	2′2′ T 28
Water capacity	28 m3 (990 cu ft) or 28,000 litres (6,200 imp gal; 7,400 US gal)
Fuel	Coal: 10 tonnes (9.8 long tons; 11 short tons)

As part of this rebuild, the engines were given welded driver's cabs, newly designed boilers (the Rekokessel) with combustion chambers, mixer-preheater systems, new welded cylinders, Trofimoff valves and Witte smoke deflectors. The reinforced Type 58E Rekokessel was a slightly modified Type 50E boiler, that was also installed on e.g. the Rekoloks of Class 50.35 and Class 52.80 as well as the DR Neubaulok, the DR Class 23.10. Due to the longer boiler, the frame also had to be extended. The distance between the carrying axle wheelset and the first coupled axle increased by around 300 mm and the overall wheelbase of the locomotive from 8,500 to 8,800 mm. That and other changes meant that the permitted top speed could be raised from 65 km/h to 70 km/h.

After the reconstruction, the Class 58.30, with its new cab, higher-pitched boiler, steep smokebox skirts and two main air reservoirs located above the cylinders, had a completely new and striking appearance. Compared with the original Prussian G 12 engines, the reconstructed locomotives were more powerful, more economical and faster. The engine crews were very pleased with the larger reserves of power of the new boiler. On the plains, the Reko-G12 matched the performance of the DRG Class 44. That said, the 58.30 was the most expensive locomotive of the entire reconstruction programme due to its extensive modernisation.

Because the delivery of new tenders in the required quantities was not possible for various reasons and the original pr 3 T 20 and sä 3 T 21 tenders could not be used for safety reasons, there was a major shortage of tenders for this class for a long time. So the Class 58.30 was coupled with almost all available types of four-axled tender to begin with. For example, there are official photographs of engines with the large 2'2'T34 standard tenders as well as the 2'2'T30 tub tenders.

The rebuilt locomotives were primarily stationed in Saxony and Thuringia, above all in the locomotive depots (Bahnbetriebswerk or Bw) of Aue, Döbeln, Dresden-Friedrichstadt, Gera, Gotha and Saalfeld. The last surviving engines were homed at Glauchau. On 12 February 1981, numbers 58 3028 and 58 3032 were taken out of service a Bw Glauchau, thus ending the official deployment of Class 58.30 steam locomotives.

Two locomotives (of Prussian origin) have been preserved as non-working examples for posterity.

Locomotive no 58 3047, reconstructed in 1961 from 58 1955 (ERFURT 5672), (LHB Breslau 1920) is looked after today by the interest group of the same name in Glauchau. In Schwarzenberg, the Verein Sächsischer Eisenbahnfreunde ('Saxon Railway Friends Society') accommodates and maintains locomotive no. 58 3049, which was rebuilt from 58 1725 (KÖLN 5617), (Hannoversche Maschinenbau AG Hannover 1920). The former museum locomotive is coupled with a new-design 2'2' T 28 tender; the latter with a 2'2' T 31.5 rebuild tender from a Prussian P 10.