Talgo has developed a new type of its characteristic running gear frames -rodals- which makes it possible to further reduce the tare weight of the vehicles it manufactures, starting with Avril - very high-speed trains. By using carbon fibre reinforced polymer composites (CFRP), the rolling assembly mass can be dramatically reduced by 50%, thus improving the energy consumption of the train and passenger capacity. Current running gear frames are constructed using welded steel plates. Both the
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