Crocodile (locomotive)

Crocodile (German Krokodil) electric locomotives are so called because they have long "noses" at each end, reminiscent of the snout of a crocodile (see also Steeplecab). These contain the motors and drive axles, and are connected by an articulated center section. The center section usually contains the crew compartments, pantographs and transformer.

Swiss "crocodile" locomotive
Dimensions are for Be 6/8II
version - an upgraded Ce 6/8II
Crocodile Ce 6/8II on display in Erstfeld
Type and origin
Power typeElectric
BuilderSwiss Locomotive and Machine Works
and Maschinenfabrik Oerlikon
Build datebuilt 1919 to 1921
rebuilt 1942 to 1947
Specifications
Configuration:
  Whyte2-6-0+0-6-2OE
  UIC(1′C)(C1′)
Gauge1,435 mm (4 ft 8+12 in) standard gauge
Wheel diameter1,350 mm (53.1 in)
Trailing dia.950 mm (37.4 in)
Wheelbase16,500 mm (54 ft 1+58 in)
Length19,460 mm (63 ft 10+18 in)
Adhesive weight103 long tons (105 t; 115 short tons)
Loco weight126 long tons (128 t; 141 short tons)
Electric system/s15 kV  16+23 Hz AC Catenary
Current pickup(s)Pantograph
Traction motors4 single-phase commutator type
Transmissionjackshaft and side rods
Performance figures
Maximum speed75 km/h (47 mph)
Power output(1 hour rating) 2,721 kW (3,649 hp)
at 45 km/h (28 mph)
Tractive effort30,000 kgf (66,000 lbf)
Career
OperatorsSBB-CFF-FFS
Official nameBe 6/8
NicknamesCrocodile

The first evidence of the nickname crocodile locomotive refers to the green Märklin model railway locomotives in gauge 0, item CCS 66/12920, as well as in gauge 1, item CCS 66/12921, which snake through the curves like a reptile when running through switch roads and counter curves, and are first referred to as such in the Märklin catalogue of 1933/1934. They are a reproduction of the Ce 6/8II and Ce 6/8III freight locomotives of the Swiss Federal Railways (SBB), which were put into service starting in 1919.

Sometimes the term is also used for locomotives of a similar design.

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