| FS Class 740 |
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FS locomotive 740.108 in 2005 |
| Type and origin |
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| Power type | Steam |
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| Builder | |
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| Build date | 1911–1923 |
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| Total produced | 470 |
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| Specifications |
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Configuration:
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| • Whyte | 2-8-0 |
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| • UIC | 1′D h2 |
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| Gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
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| Leading dia. | 860 mm (2 ft 9+7⁄8 in) |
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| Driver dia. | 1,370 mm (4 ft 5+7⁄8 in) |
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| Length | 11,040 mm (36 ft 2+5⁄8 in) |
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| Axle load | 14.1 tonnes (13.9 long tons; 15.5 short tons) |
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| Loco weight | 66.5 tonnes (65.4 long tons; 73.3 short tons) |
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| 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)
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| Tender type | Three-axle or bogie |
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| Fuel type | Coal |
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| Fuel capacity | 6,000 kg (13,000 lb) |
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| Water cap. | - Six-wheel tender: 12 m3 (2,640 imp gal; 3,170 US gal)
- Bogie tender: 22 m3 (4,840 imp gal; 5,810 US gal)
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| Firebox: | |
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| • Grate area | 2.8 m2 (30 sq ft) |
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| Boiler pressure | 12 kg/cm2 (11.8 bar; 171 psi) |
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| Heating surface | 176.04 m2 (1,894.9 sq ft) |
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Superheater:
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| • Heating area | 41.23 m2 (443.8 sq ft) |
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| Cylinders | Two, outside |
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| Cylinder size | 540 mm × 700 mm (21+1⁄4 in × 27+9⁄16 in) |
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| Valve gear | Walschaerts or Caprotti |
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| Performance figures |
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| Maximum speed | 65 km/h (40 mph) |
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| Power output | 980 CV (721 kW; 967 hp) |
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| Tractive effort | 14,700 kgf (144 kN; 32,400 lbf) |
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The Ferrovie dello Stato (FS; Italian State Railways) Class 740 (Italian: Gruppo 740) is a class of 2-8-0 'Consolidation' steam locomotives.