Kato N Scale FP7A, F7B 2 Locomotive Set, Milwaukee Road Post Axle Housing Engineered with precision Discover the Mercedes Benz Engineered with precision You'll find options for both a helmeted and bare head in the box their A1A truck design (spreading their weight and giving them less traction) made them less than ideal for handling the steep grades of the Milwaukee’s route through the Rocky Mountains WA in the early 50’s – two electrics (used on electrified portions of the journey) and the EMD FP7 – a specialized variation of the F7A which was lenghtened to accomodate a larger water resevoir for its steam generators (a necessity for long distance passenger service like that of the Olympian Hiawatha)