Baden IX b

Baden IX b DRG Class 97.2

Type and originBuilderMaschinenfabrik EsslingenBuild date1910 (4), 1921 (3)Total produced7

Type and origin

Build date1910 (4), 1921 (3)

Total produced7

SpecificationsConfiguration:• Whyte 0-6-2T• UICC1′ n2(4v)ztGauge1,435 mm (4 ft 8+1⁄2 in)Driver dia.1,080 mm (3 ft 6+1⁄2 in)Trailing dia.850 mm (2 ft 9+1⁄2 in)Wheelbase:• Overall5,050 mm (16 ft 6+3⁄4 in)Rack system Riggenbach rack systemLength:• Over beams10.900 m (35 ft 9+1⁄4 in)Height4,248 mm (13 ft 11+1⁄4 in)Axle load14.3 tonnes (14.1 long tons; 15.8 short tons)Adhesive weight42.8 tonnes (42.1 long tons; 47.2 short tons)Empty weight45.3–45.6 tonnes (44.6–44.9 long tons; 49.9–50.3 short tons)Service weight56.7–57.0 tonnes (55.8–56.1 long tons; 62.5–62.8 short tons)Fuel capacityCoal: 1.5 tonnes (1.5 long tons; 1.7 short tons)Water cap.5,000 litres (1,100 imp gal; 1,300 US gal)Boiler:No. of heating tubes178Heating tube length3,200 or 3,850 mm (10 ft 6 in or 12 ft 7+1⁄2 in)Boiler pressure14 kgf/cm2 (1.37 MPa; 199 psi)Heating surface:• Firebox1.8 m2 (19 sq ft)• Radiative8.2 m2 (88 sq ft)• Tubes89.43 or 107.5 m2 (962.6 or 1,157.1 sq ft)• Evaporative97.59–115.7 m2 (1,050.5–1,245.4 sq ft)Superheater:• Heating area25.15 m2 (270.7 sq ft)Cylinders4Cylinder size450 mm (17+11⁄16 in)Piston stroke550 mm (21+5⁄8 in)Cogwheel drive cylinder bore450 mm (17+11⁄16 in)Cogwheel drive piston stroke550 mm (21+5⁄8 in)Valve gear Walschaerts (Heusinger)

Specifications

Configuration

• Whyte0-6-2T

• UICC1′ n2(4v)zt

Gauge1,435 mm (4 ft 8+1⁄2 in)

Driver dia.1,080 mm (3 ft 6+1⁄2 in)

Trailing dia.850 mm (2 ft 9+1⁄2 in)

Wheelbase

• Overall5,050 mm (16 ft 6+3⁄4 in)

Rack systemRiggenbach rack system

Length

• Over beams10.900 m (35 ft 9+1⁄4 in)

Height4,248 mm (13 ft 11+1⁄4 in)

Axle load14.3 tonnes (14.1 long tons; 15.8 short tons)

Adhesive weight42.8 tonnes (42.1 long tons; 47.2 short tons)

Empty weight45.3–45.6 tonnes (44.6–44.9 long tons; 49.9–50.3 short tons)

Service weight56.7–57.0 tonnes (55.8–56.1 long tons; 62.5–62.8 short tons)

Fuel capacityCoal: 1.5 tonnes (1.5 long tons; 1.7 short tons)

Water cap.5,000 litres (1,100 imp gal; 1,300 US gal)

Boiler

No. of heating tubes178

Heating tube length3,200 or 3,850 mm (10 ft 6 in or 12 ft 7+1⁄2 in)

Boiler pressure14 kgf/cm2 (1.37 MPa; 199 psi)

Heating surface

• Firebox1.8 m2 (19 sq ft)

• Radiative8.2 m2 (88 sq ft)

• Tubes89.43 or 107.5 m2 (962.6 or 1,157.1 sq ft)

• Evaporative97.59–115.7 m2 (1,050.5–1,245.4 sq ft)

Superheater

• Heating area25.15 m2 (270.7 sq ft)

Cylinders4

Cylinder size450 mm (17+11⁄16 in)

Piston stroke550 mm (21+5⁄8 in)

Cogwheel drive cylinder bore450 mm (17+11⁄16 in)

Cogwheel drive piston stroke550 mm (21+5⁄8 in)

Valve gearWalschaerts (Heusinger)

Performance figuresMaximum speedAdhesion: 45 km/h (28 mph)Rack: 18 km/h (11 mph)

Performance figures

Maximum speedAdhesion: 45 km/h (28 mph)Rack: 18 km/h (11 mph)

CareerNumbersG.Bad.St.E.: 344, 345, 371, 736–739DRG 97 201 – 97 204, 97 251 – 97 253Retiredmid-1930s

Career

NumbersG.Bad.St.E.: 344, 345, 371, 736–739DRG 97 201 – 97 204, 97 251 – 97 253

Retiredmid-1930s

The Baden Class IX b were German rack railway steam locomotives with the Grand Duchy of Baden State Railways, whose cogwheel drive was designed for running on track with a Riggenbach rack system.

The locomotive was produced in two sub-classes, which were designated as IX b1 and IX b2. In 1925, they were grouped by the Deutsche Reichsbahn as DRG Class 97.2 within their renumbering plan. The engines were employed on the Höllentalbahn in the Black Forest until they were eventually and later replaced by DRG Class 85 locomotives.

Baden IX b

See also