DRG Class 98.11

DRG Class 98.11
Type and origin
Power type Steam
Builder (Weiden Repair Shop)
Total produced 29
Specifications
Configuration 2-8-0
UIC classification 1'D h2t
Leading wheel
diameter		 800 mm
Driver diameter 1,006 mm
Length 10,200 mm
Axle load 113.8 kN
Weight on drivers 416.8 kN
Locomotive and tender
combined weight		 497.2 kN
Boiler pressure 117.7 kN/cm²
Firegrate area 1.36 m²
Heating surface:
– Tubes		 60.99 m²
Superheater area 18.93 m²
Cylinder size 508 mm x 460 mm
Performance figures
Maximum speed 55 km/h
Power output 450 PSi
Locomotive brake Compressed air brakes
Career
Number(s) 98 1101 - 98 1129
First run 1934–1941
Retired 1960–1968

The Class 98.11 steam locomotives of the Deutsche Reichsbahn were rebuilds of the Bavarian Class GtL 4/4 (DRG Class 98.8-9).

Because the riding qualities of the Class 98.10 were still not good enough to raise the speed of branch line (Lokalbahn) trains in Bavaria significantly, the Reichsbahn decided in 1934 to rebuild a Class GtL 4/4 engine (no. 98 906). Amongst other things, it was given an additional leading axle. As a result the boiler and driver's cab had to be moved forward, which resulted in their having to be raised by 250 mm.

After trials with the locomotive had proved successful, it was decided to modify another 26 engines by 1939 and to allocate them to a new locomotive class. A further engine followed in each of the years 1940 and 1941. The rebuilds were given numbers 98 1101 - 98 1129.

The permitted top speed of the rebuilds could be raised to 55 km/h, compared with 40 km/h for the GtL 4/4 and 45 km/h for the Class 98.10.

All 29 locomotives survived the Second World War. Apart from 98 1108, which went to the DR in East Germany, they all went into the Deutsche Bundesbahn. The East German engine was retired in 1967; those in the West between 1960 and 1968.

See also

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