FS Class 400

Specifications
Specifications
Configuration:;
• Whyte	0-8-0
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Driver dia.	1.21 m (48 in)
Length	First series: 14.447 m (47.40 ft) (including tender); Second series: 13.728 m (45.04 ft) (including tender)
Fuel type	Coal
Fuel capacity	3 tonnes (3.0 long tons; 3.3 short tons)
Water cap.	7,000 L (1,500 imp gal; 1,800 US gal)
Boiler pressure	8 bar (0.80 MPa; 120 psi)
Cylinders	2 outside
Cylinder size	560 mm × 610 mm (22 in × 24 in)
Valve gear	Stephenson

Type and origin
Type and origin
Power type	Steam
Builder	Koechlin
Build date	1861-1871
Total produced	20

FS Class 400
SFAI 1281-1300 (old)
SFAI 1201-1220 (new)
RM 4001-4020
FS Class 400; SFAI 1281-1300 (old); SFAI 1201-1220 (new); RM 4001-4020
	Locomotive RM 4001
Power type
Type and origin
Power type	Steam
Builder	Koechlin
Build date	1861-1871
Total produced	20
Configuration:;
Specifications
Configuration:;
• Whyte	0-8-0
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Driver dia.	1.21 m (48 in)
Length	First series: 14.447 m (47.40 ft) (including tender); Second series: 13.728 m (45.04 ft) (including tender)
Fuel type	Coal
Fuel capacity	3 tonnes (3.0 long tons; 3.3 short tons)
Water cap.	7,000 L (1,500 imp gal; 1,800 US gal)
Boiler pressure	8 bar (0.80 MPa; 120 psi)
Cylinders	2 outside
Cylinder size	560 mm × 610 mm (22 in × 24 in)
Valve gear	Stephenson
Maximum speed
Performance figures
Maximum speed	40 km/h (25 mph)
Power output	First series: 590 hp (440 kW); Second series: 610 hp (450 kW)
Tractive effort	7,140 kgf (15,700 lbf)

FS Class 400 were steam locomotives of French construction, built for service in Italy. They were 0-8-0 tender locomotives with two outside cylinders.

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