FS Class 103

FS Class 103 was a class of 2-2-2 steam locomotives of the Italian State Railways (FS), originally built for the Strade Ferrate dello Stato Piemontese (SFSP).

SFSP 34–38 and 80–89
SFAI 91–110
RM 519–538
FS 103

Locomotive SFAI 109

Type and origin
Power type	Steam
Builder	Sharp, Stewart and Company
Serial number	724–728, 832–836, 848–852, 1514–1518
Build date	1853–1855, 1864
Total produced	20

Specifications
Configuration:
• Whyte	2-2-2
• UIC	1A1 n2
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Driver dia.	1.981 m (6 ft 6 in)
Length	14.211 m (46 ft 7+1⁄2 in) (tender included)
Adhesive weight	12.5 tonnes (12.3 long tons; 13.8 short tons)
Loco weight	27.4 tonnes (27.0 long tons; 30.2 short tons)
Fuel type	Coal
Boiler pressure	7 bar (700 kPa; 102 psi)
Cylinders	Two, inside
Cylinder size	406 mm × 508 mm (16 in × 20 in)
Valve gear	Stephenson

Performance figures
Maximum speed	80 km/h (50 mph)
Power output	220 kW (300 hp)

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