FS Class 740

The Ferrovie dello Stato (FS; Italian State Railways) Class 740 (Italian: Gruppo 740) is a class of 2-8-0 'Consolidation' steam locomotives.

FS Class 740
FS locomotive 740.108 in 2005
Type and origin
Power typeSteam
Builder
Build date1911–1923
Total produced470
Specifications
Configuration:
  UIC1′D h2
Gauge1,435 mm (4 ft 8+12 in) standard gauge
Leading dia.860 mm (33.86 in)
Driver dia.1,370 mm (53.94 in)
Length11,040 mm (36 ft 2+58 in)
Axle load14.1 tonnes (13.9 long tons; 15.5 short tons)
Loco weight66.5 tonnes (65.4 long tons; 73.3 short tons)
Tender weight
  • Six-wheel tender: 31.9 tonnes (31.4 long tons; 35.2 short tons)
  • Bogie tender: 49.6 tonnes (48.8 long tons; 54.7 short tons)
Tender typeThree-axle or bogie
Fuel typeCoal
Fuel capacity6,000 kg (13,000 lb)
Water cap.Bogie tender: 22,000 litres (4,800 imp gal; 5,800 US gal)
Firebox:
  Grate area2.8 m2 (30 sq ft)
Boiler pressure12 kg/cm2 (1.18 MPa; 171 psi)
Heating surface176.04 m2 (1,894.9 sq ft)
Superheater:
  Heating area41.23 m2 (443.8 sq ft)
CylindersTwo, outside
Cylinder size540 mm × 700 mm (21.26 in × 27.56 in)
Valve gearWalschaerts or Caprotti
Performance figures
Maximum speed65 km/h (40 mph)
Power output980 CV (721 kW; 967 hp)
Tractive effort14,700 kgf (144 kN; 32,400 lbf)
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