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Swiss Federal Railways Bm 4/4
The Bm 4/4 was a four-axle diesel shunter designed as a replacement for the last steam shunters that does not need overhead lines. As this also had strategical reasons, the Swiss Military Department also paid for some...
General
| Property | Swiss Federal Railways Bm 4/4Remove |
|---|---|
| Built | 1960-1979 |
| Manufacturers | mechanical part: SLM, electrical part: SAAS |
| Wheel arrangement | B-B |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Swiss Federal Railways Bm 4/4Remove |
|---|---|
| Length | 12.65 m |
| Service weight | 72 t |
| Adhesive weight | 72 t |
| Axle load | 18 t |
Power plant
| Property | Swiss Federal Railways Bm 4/4Remove |
|---|---|
| Engine | SLM 12YD20TrTh |
| Engine type | V12 diesel |
Power
| Property | Swiss Federal Railways Bm 4/4Remove |
|---|---|
| Power source | diesel-electric |
| Indicated power | 620 kW (843 PS) |
| Top speed | 75 km/h |
Calculated values
| Property | Swiss Federal Railways Bm 4/4Remove |
|---|---|
| Power-to-weight ratio | 8.6 kW/t |
| Adhesive weight/Total | 1 : 1.00 |
