Imaginary trains in IRI have many, many markings warning everyone that it is NOT a real train. So, there is very little possibility of misunderstanding. The word "IMAGINARY" appears in multiple locations throughout. Moreover, imaginary trains have been explicitly excluded from search engine indexes.
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However, the TT itself may be plausible, and "can theoretically" be incorporated into a real train. We do not know if this is the case.