OM FS 851

Built by Ansaldo, Breda, Maffei, OM, Saronno

Top speed

65 km/h

40 mph

Weight

44 t

97,003 lb

Length

9 m

29 ft 6 in

Track gauge

1,435 mm

Standard gauge

Years built

1898–1911

207 units

Axle arrangement

Overview of the OM FS 851

Discover the FS 851, an iconic Italian steam locomotive.

Built between 1898 and 1911 by renowned manufacturers like Ansaldo, Breda, and Maffei, this impressive machine served the Italian State Railways. It features a UIC classification of C and operates on a standard gauge of 1435 mm.

The FS 851 could reach a top speed of 65 km/h. Weighing 44 tons and measuring 9 meters in length, this steam locomotive represents a significant piece of railway engineering history.

OM FS 851 technical specifications

	Value	Imperial / US
Built by	Ansaldo, Breda, Maffei, OM, Saronno · 1898–1911207 units
Top speed	65 km/h40 mph	40 mph
Track gauge	1,435 mmStandard gauge4 ft 8½ in	4 ft 8½ in
UIC axle arrangement	C
Length	9 m29 ft 6 in	29 ft 6 in
Height	4.22 m13 ft 10 in	13 ft 10 in
Weight	44 t97,003 lb	97,003 lb