FS Class 670

Specifications
Specifications
Configuration:;
• UIC	2′C n4v
Gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Leading dia.	1,125 mm (44.29 in)
Driver dia.	1,920 mm (75.59 in)
Length	13,687 mm (44 ft 10+7⁄8 in)
Axle load	14.4 tonnes (14.2 long tons; 15.9 short tons)
Loco weight	69.9 tonnes (68.8 long tons; 77.1 short tons)
Tender weight	37.2 tonnes (36.6 long tons; 41.0 short tons)
Fuel type	Coal
Fuel capacity	4,000 kg (8,800 lb)
Water cap.	2,000 litres (440 imp gal; 530 US gal)
Firebox:
• Grate area	3 m2 (32 sq ft)
Boiler pressure	12 kg/cm2 (1,180 kPa; 171 psi)
Heating surface	150.8 m2 (1,623 sq ft)
Cylinders	Four
Valve gear	Walschaerts

Type and origin
Type and origin
Power type	Steam
Builder	RA Florence Works (1); Ernesto Breda (30),; Borsig-Werke (12);
Build date	1900–1906
Total produced	43

RA Class 500
FS Class 670
RA Class 500; FS Class 670
	FS locomotive 670.043, here with the earlier classification of FS 6943
Power type
Type and origin
Power type	Steam
Builder	RA Florence Works (1); Ernesto Breda (30),; Borsig-Werke (12);
Build date	1900–1906
Total produced	43
Configuration:;
Specifications
Configuration:;
• UIC	2′C n4v
Gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Leading dia.	1,125 mm (44.29 in)
Driver dia.	1,920 mm (75.59 in)
Length	13,687 mm (44 ft 10+7⁄8 in)
Axle load	14.4 tonnes (14.2 long tons; 15.9 short tons)
Loco weight	69.9 tonnes (68.8 long tons; 77.1 short tons)
Tender weight	37.2 tonnes (36.6 long tons; 41.0 short tons)
Fuel type	Coal
Fuel capacity	4,000 kg (8,800 lb)
Water cap.	2,000 litres (440 imp gal; 530 US gal)
Firebox:
• Grate area	3 m2 (32 sq ft)
Boiler pressure	12 kg/cm2 (1,180 kPa; 171 psi)
Heating surface	150.8 m2 (1,623 sq ft)
Cylinders	Four
Valve gear	Walschaerts
Maximum speed
Performance figures
Maximum speed	110 km/h (68 mph)
Power output	870 CV (640 kW; 858 hp)
Tractive effort	8,000 kgf (78.5 kN; 17,600 lbf)

The Rete Adriatica Class 500 (Italian: Gruppo 500), classified after 1905 in the Ferrovie dello Stato Italiane (FS; Italian State Railways) as Class 670 (Italian: Gruppo 670) was an unorthodox and iconic cab forward 4-6-0 (2'C) steam locomotive.

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