3rd generation steam locomotives - built 1992/96
In 1988, the Brienz Rothorn Railway ordered a new locomotive from “Schweizerische Lokomotiv- und Maschinenfabrik Winterthur”. The new steam locomotives, which were redesigned from the ground up, allow a modern operating concept that significantly improves economic efficiency compared to the previous, coal-fired steam locomotives. The firing is done with low-sulphur fuel oil. Thanks to the installation of a dead man’s and watchman’s device, one-man operation is possible. Whereas with the coal-fired steam locomotives it takes three drivers (locomotive driver, stoker, train attendant) to transport 40-80 passengers, with the new steam locomotives it is possible to transport up to 120 passengers with only two personnel (the stoker is omitted).
The new steam locomotives provide this service every two hours, while the old steam engines can be used every two and a half hours.
Locomotives
| Locomotive 12 | 1992 | BRB |
| Locomotive 14 | 1996 | BRB |
| Locomotive 15 | 1996 | BRB |
| Locomotive 16 | 1992 | BRB since 2004 |
Key data
| Firing | Fuel oil |
| Consumption per return trip | 150 litres of fuel oil |
| 2’000 litres of water | |
| Service weight | 15’700 kg |
| Empty weight | 13’200 kg |
| Boiler pressure | 16 bar |
| Water boiler | 1’200 litres |
| Water supply in boiler | 1’400 litres |
| Oil tank | 560 litres |
| Power | 408 PS |
| Procurement costs (1992) | CHF 1’800’00.00 |
| Procurement costs (1996) | CHF 2’100’00.00 |