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Final one for me for this dump is the DB BR 478, a dual-mode locomotive capable of running Diesel-Electric or using 750 V DC from third rails. The idea was to build a locomotive that could service the Berlin S-Bahn while still being able to use the third rail infrastructure when possible, or when necessary underground. These locomotives are designed more to pull flatbed cars which can carry construction material or whatever... Theoretically, at least, it could pull passenger carriages, but I don't think they would be of a suitable loading gauge for most of the Berlin S-Bahn.
