Saxon IX V

The Saxon Class IX Vs were German, eight-coupled, tender locomotives built for the Royal Saxon State Railways (Königlich Sächsische Staatseisenbahnen) for goods train duties.

Saxon IX V, IX HV DRG Class 56.5–6
Number(s)	IX V: KSäStE 750–770 → DRG 56 501–516 IX HV: KSäStE 771–800 → DRG 56 601–625
Quantity	50
Manufacturer	Sächsische Maschinenfabrik
Year(s) of manufacture	IX V: 1902–1905 IX HV:1907–1908
Wheel arrangement	2-8-0
Axle arrangement	1′D n2v
Length over buffers	17,514 mm (57 ft 5 ^1⁄2 in)
Service weight	72 t (71 long tons; 79 short tons)
Adhesive weight	60 t (59 long tons; 66 short tons)
Axle load	15 t (15 long tons; 17 short tons)
Top speed	50 km/h (31 mph)
Indicated Power	1,300 PS (956 kW; 1,280 hp)
Driving wheel diameter	1,260 mm (4 ft 1 ^5⁄8 in)
Leading wheel diameter	1,065 mm (3 ft 5 ^7⁄8 in)
LP cylinder bore	770 mm (30 ^3⁄8 in)
HP cylinder bore	530 mm (20 ^7⁄8 in)
Piston stroke	630 mm (24 ^3⁄4 in)
Boiler Overpressure	14.0 kg/cm^2 (1.37 MPa; 199 psi)
Grate area	3.17 m^2 (34.1 sq ft)
Evaporative heating area	180.56 m^2 (1,943.5 sq ft)

History

These steam locomotives were brought into service, after it was clear that the Saxon Class I V (later DRG Class 55) could no longer the demands placed on it. The locomotive had a hollow, Klien-Lindner axle at the back and, initially, a long steam collection pipe above the centre of the boiler which was replaced on later models by two steam domes and a connecting pipe. Twenty machines were delivered by the firm of Hartmann as wet steam engines, a further 30 with a Schmidt smoke tube superheater.

The Deutsche Reichsbahn took over 16 of the first series and gave them the running numbers 56 501–56 516. Of the second batch, 25 were taken on with numbers 56 601–56 625.

The vehicle were coupled with tenders of Saxon classes sä 3 T 9, sä 3 T 12 or sä 3 T 13.

See also

• Royal Saxon State Railways
• List of Saxon locomotives and railbuses