Speed limits of specific steam engines
Slightly off topic but I would like to know why steam engines operating on the mainline have speed limits below that for the line, i.e RAH has a speed limit of 60mph on the main line yet Im sure that in steam days they ran at more than 60 mph. Even if the halls had a maximum speed of 60mph then surely Kings, Castles, Pacifics etc must have had top speeds in excess of 75 mph.
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