Introduction
Imagine a parallel universe were 55-year-old English Electric designed (and in some cases built) locomotives are trusted with 200-mile round trips day in, day out, which they perform with aplomb. Sounds unbelievable?
Thankfully this is not yet a dream, but a daily reality on the “Linha Do Douro” in northern Portugal. However, if you wish to experience it yourself you must be quick, as a combination of ongoing line electrification and the introduction of bi-modal diesel multiple units in the coming years will most likely limit
