SBB-CFF-FFS De 6/6

SBB–CFF–FFS De 6/6

The last remaining De 6/6 prior to restoration

Type and origin Power type Electric Builder SLM BBC Build date 1926 Total produced 3

Specifications AAR wheel arr C-C UIC class C′C′ Gauge 1,435 mm (4 ft 8 1⁄2 in) Wheelbase 10,800 mm (35 ft 5 in) (first and last axle) Length 14,000 mm (45 ft 11 in) Loco weight 73 tonnes (71.8 long tons; 80.5 short tons) Electric system(s) 15 kV ​16 2⁄3 Hz AC Catenary (also 5.5 kV 25 Hz AC catenary until 1930) Current collection Pantograph Traction motors Two

Performance figures Maximum speed 50 km/h (31 mph) Power output 850 kW (1,140 hp)

Career Operators Swiss Federal Railways Numbers 15301–15303 Nicknames Seetal Crocodile Withdrawn 1983 Preserved 1 Current owner Oensingen-Balsthal-Bahn

The Swiss Class De 6/6 electric locomotives were built in 1926 for the Swiss Federal Railways. Ordered for the Seetalbahn line, which runs between Lenzburg and Emmenbrücke, they were Known as Seetal Crocodiles. In total 3 locomotives of this type were built, and numbered 15301–15303. As built they were capable of operating under dual voltage - the 5.5 kV, 25 Hz AC system in use on the Seetal line, and the national 15 kV ​16 ²⁄₃ Hz AC system. The former system was removed from these locomotives in 1930, when the line was modernised to SBB national standards.

Disposal and Preservation

All three locomotives were withdrawn by SBB in April 1983, with 15302 and 15303 being scrapped. 15301 was purchased by the Oensingen-Balsthal-Bahn.

See also

• List of stock used by Swiss Federal Railways