Württemberg Ts 4

The DRG Class 99.17, formerly the Württemberg Ts 4 of the Royal Württemberg State Railways were German narrow gauge steam locomotives bought for working the 15.11 kilometre long route between the towns of Altensteig and Nagold. The three tank locomotives had an outer frame and a Klose drive. The first and third axles were steered by the third, radially-sliding axle by means of a system of levers. The second axle was driven by the inside cylinder and had no wheel flanges. Overall the system was very reliable, but nevertheless also very maintenance-intensive.

Württemberg Ts 4
DRG Class 99.17
Number(s)Nr. 1–3
99 171–173
Quantity3
ManufacturerMaschinenfabrik Esslingen
Year(s) of manufacture1891, 1899
Retired1931
Axle arrangementD n2t
TypeK 44.8
Track gauge1,000 mm (3 ft 3 3⁄8 in)
Length over buffers8,130 mm (26 ft 8 in)
Height3,540 mm (11 ft 7 3⁄8 in)
Width2,200 mm (7 ft 2 5⁄8 in)
Wheelbase2,250 mm (7 ft 4 1⁄2 in)
Overall wheelbase2,250 mm (7 ft 4 1⁄2 in)
Empty weight23.65 tonnes (23.28 long tons; 26.07 short tons)
Service weight29.80 tonnes (29.33 long tons; 32.85 short tons)
Adhesive weight29.80 tonnes (29.33 long tons; 32.85 short tons)
Top speed30 km/h (19 mph)
Driving wheel diameter900 mm (2 ft 11 3⁄8 in)
Valve gearKlose
No. of cylinders2
Cylinder bore340 mm (13 3⁄8 in)
Piston stroke500 mm (19 11⁄16 in)
Boiler Overpressure12 kg/cm2 (1,180 kPa; 171 psi)
Grate area1.02 m2 (11.0 sq ft)
Evaporative heating area70.2 m2 (756 sq ft)
Water capacity2.4 m3 (530 imp gal; 630 US gal)
Fuel750 kg (1,650 lb)

The engines were delivered in 1891, 1892 and 1899, and later all taken over by the Reichsbahn. There they were given numbers 99 171–99 173. They also had the names Altensteig, Berneck and Ebhausen

See also
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