ms: Ini jarang berlaku di United Kingdom, tetapi agak kerap di Eropah, sekurang-kurangnya untuk lokomotif besar. Ini jarang berlaku di United Kingdom, tetapi agak biasa di Eropah, sekurang-kurangnya untuk lokomotif besar.
en: These were rare in the United Kingdom , but relatively frequent in Europe , at least for large locomotives . These were rare in the United Kingdom , but relatively common in Europe , at least for large locomotives .