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Hi, In a previous post on this forum, I mentioned that the newly developed Kato slotless motor was not compatible with Kato French bullet trains (as well as other Kato European trains I bet but I did not confirm that yet). Here is a depiction of the Kato engine used in these trains. Yesterday, I opened my Kato JR700S Nozomi Shinkansen and realized that its engine was, contrary to that of the French TGV I have, the exact same dimension as the new Kato slotless motor (which is significantly smaller and slightly longer than the motor in the French TGV). I was able to replace the JR700S engine with a slotless motor, it now runs great and has a much better behaviour at low speed. One question though: why in the world would the engines in the Kato French bullet trains be so different from those in the Japanese bullet trains ??