The Bm 4/4 is a class of heavy diesel shunting locomotives built for Swiss Federal Railways. 46 examples were built between 1960 and 1970, numbered 18401 to 18446, and a limited number remain in service. Starting in 2006, the class was slowly being replaced by new Vossloh-built locomotives.
| This article does not cite any sources. (December 2014) |
Quick Facts Type and origin, Power type ...
SBB-CFF-FFS Bm 4/4 |
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Bm 4/4 18439 at Lausanne train station |
Type and origin |
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Power type | Diesel |
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Builder | SLM, SAAS |
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Build date | 1960–1970 |
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Total produced | 46 |
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Specifications |
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Configuration:
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• AAR | B-B |
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• UIC | Bo′Bo′ |
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Gauge | 1,435 mm (4 ft 8+1⁄2 in) |
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Length | 12,650–13,710 mm (41 ft 6 in – 45 ft 0 in) |
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Loco weight | 72 tonnes (70.9 long tons; 79.4 short tons) |
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Traction motors | Four |
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Transmission | Diesel electric |
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Performance figures |
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Maximum speed | 75 km/h (47 mph) |
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Power output | 620 kW (831 hp) |
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Career |
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Operators | SBB-CFF-FFS |
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Numbers | 18401–18446 |
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Withdrawn | From 2006 |
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