As reported in last month's column, the Department for Transport has finally accepted Sir Isaac Newton's argument that a 500-tonne Class 800 bi-mode with the three engines each rated at 750hp could not match InterCity125 timings on the Great Western main line (GWML).The report of a 15-minute difference between Paddington and Bristol, which I found hard to believe until I did some basic sums, has been confirmed independently.
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