FS Class 910

FS Class 910
RS Class 400
FS Class 910
Type and origin
Power typeSteam
Builder
Build date1905–1908
Total produced54
Specifications
Configuration:
 • Whyte2-6-2T
 • UIC1C1 n2vt
Gauge1,435 mm (4 ft 8+12 in)
Leading dia.850 mm (2 ft 9+12 in)
Driver dia.1,510 mm (4 ft 11+12 in)
Wheelbase:
 • Axle spacing
(Asymmetrical)
  • 2,400 mm (7 ft 10+12 in)
  • 1,900 mm (6 ft 2+34 in)
  • 1,900 mm (6 ft 2+34 in)
  • 2,300 mm (7 ft 6+12 in)
 • Engine8,500 mm (27 ft 10+58 in)
Length:
 • Over headstocks11,552 mm (37 ft 10+34 in)
 • Over buffers12,752 mm (41 ft 10 in)
Height4,210 mm (13 ft 9+34 in)
Axle load:
 • Leading11,700 kg (11.5 long tons; 12.9 short tons)
 • Coupled14,500 kg (14.3 long tons; 16.0 short tons)
 • Trailing11,700 kg (11.5 long tons; 12.9 short tons)
Adhesive weight43,500 kg (42.8 long tons; 48.0 short tons)
Loco weight63,400 kg (62.4 long tons; 69.9 short tons)
66,900 kg (65.8 long tons; 73.7 short tons) after modification
Fuel typeCoal
Boiler:
 • Pitch2,710 mm (8 ft 10+34 in)
Boiler pressure13 kgf/cm2 (12.7 bar; 185 psi)
Cylinders1 high pressure
1 low pressure
High-pressure cylinder460 mm × 600 mm (18+18 in × 23+58 in)
Low-pressure cylinder700 mm × 600 mm (27+916 in × 23+58 in)
Valve gearWalschaerts
Performance figures
Maximum speed75 km/h (47 mph)
Power output690 CV (510 kW; 680 hp)
Career
Operators
Numbers
  • RS: 401–406
  • FS 9101–9154
  • FS 910.001–910.054
  • JŽ 115.001–115.007
Retired1950s

FS Class 910 were 2-6-2 tank locomotives designed by Guglielmo Cappa for Rete Sicula where they were registered as RS Class 400. They were absorbed by Italian State Railways (FS) in 1905 and became FS Class 910.