Bavarian D X

Specifications
Specifications
Configuration:;
• Whyte	0-6-2T
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Driver dia.	985 or 1,006 mm (3 ft 2+3⁄4 in or 3 ft 3+5⁄8 in)
Trailing dia.	780 or 800 mm (2 ft 6+3⁄4 in or 2 ft 7+1⁄2 in)
Length:;
• Over beams	9,310 mm (30 ft 6+1⁄2 in)
Axle load	11.0 t (10.8 long tons; 12.1 short tons)
Adhesive weight	33.0 t (32.5 long tons; 36.4 short tons)
Service weight	42.7 t (42.0 long tons; 47.1 short tons)
Boiler pressure	12 kgf/cm2 (1,180 kPa; 171 lbf/in2)
Heating surface:
• Firebox	1.40 m2 (15.1 sq ft)
• Evaporative	71.71 m2 (771.9 sq ft)
Cylinders	2
Cylinder size	390 mm (15+3⁄8 in)
Piston stroke	508 mm (20 in)

Type and origin
Type and origin
Builder	Krauss, Munich
Build date	1890, 1893
Total produced	9

Bavarian D X
DRG Class 98.77
Bavarian D X ; DRG Class 98.77
Builder
Type and origin
Builder	Krauss, Munich
Build date	1890, 1893
Total produced	9
Configuration:;
Specifications
Configuration:;
• Whyte	0-6-2T
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Driver dia.	985 or 1,006 mm (3 ft 2+3⁄4 in or 3 ft 3+5⁄8 in)
Trailing dia.	780 or 800 mm (2 ft 6+3⁄4 in or 2 ft 7+1⁄2 in)
Length:;
• Over beams	9,310 mm (30 ft 6+1⁄2 in)
Axle load	11.0 t (10.8 long tons; 12.1 short tons)
Adhesive weight	33.0 t (32.5 long tons; 36.4 short tons)
Service weight	42.7 t (42.0 long tons; 47.1 short tons)
Boiler pressure	12 kgf/cm2 (1,180 kPa; 171 lbf/in2)
Heating surface:
• Firebox	1.40 m2 (15.1 sq ft)
• Evaporative	71.71 m2 (771.9 sq ft)
Cylinders	2
Cylinder size	390 mm (15+3⁄8 in)
Piston stroke	508 mm (20 in)
Maximum speed
Performance figures
Maximum speed	45 km/h (28 mph)
Indicated power	300 PS (221 kW; 296 hp)
Numbers
Career
Numbers	K.Bay.Sts.E: 931–935, 99, 1961–1963; DRG 98 7701 – 98 7709;
Retired	1925–1931

The Bavarian Class D X engines were saturated steam locomotives of the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn).

The locomotives, which were built by Krauss were similar to the Class D VIII, but were smaller and lighter. Like the D VIII they had a trailing axle, that was connected to the final coupled axle by a Krauss-Helmholtz bogie.

In 1890 the first six were built, followed in 1893 by three more with somewhat larger wheels. The first engine was only 8,880 mm long due to the lack of a coal bunker on the driver's cab.

All the vehicles were taken over by the Deutsche Reichsbahn-Gesellschaft in 1925 as DRG Class 98.77 and remained in service until 1931. Only numbers 98 7706 and 98 7707 were retired shortly after the renumbering.

References

Weisbrod, Manfred; Petznik, Wolfgang (1981). Dampflokomotiven deutscher Eisenbahnen, Baureihe 97–99 (EFA 1.4) (in German) (2nd ed.). Düsseldorf: Alba. pp. 96–98. ISBN 3-87094-087-5.

Bavarian D X

See also

References