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Yes, the proliferation of BB+BB trucks on EFVM rr have an importante reason: the original traction motors can´t be used on meter gauge trucks. So, is it necessary to put more axles to get the same housepower of original locomotive. EFVM have reveived visit of some US operators because the success of the innovation. The locomotive fit better them C-C trucks and has more adhesion on hills. EFVM roadbed is very good and it uses TR68 rails. Others rr in Brasil have imported locos from USA to, but because they are broad gauge (1,600 mm) they use de original traction motors and the same kind of trucks of original rr. it´s neccessary to say that EFVM is the most importante rr in Brasil, and one of the world biggest iron ore carrier. It has 700 km long and run 20 pair of trains a day, with 160 or 240 vagons . I´d like to add a photo of a Conrail or CSX on BB+BB trucks here, but I can´t do it. How can I do? Pedrop [quote]QUOTE: Originally posted by 45144 I suspect that the proliferation of the BB+BB in Brasil has two factors, firstly there may well be lighter rail/trackbeds down there and more importantly the locos are former standard gauge converted to either metre of 3' gauge(I forget the local gauge exactly) In this case you can either lift the loco higher or stretch rthe bogie to find room for all the equipment that fitted between the wheels on standard gauge. There may be a loading gauge restriction on raising the locos too much Kev [/quote]
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