 Subsequently, additional Class 73s were located and purchased, some from preservation, to give a total fleet (at July 2018) of 24 locomotives.Of these, eleven were completely re-engineered in 2014 and 2015, equipped with 1600 hp MTU diesel power units, with five dedicated to Network Rail infrastructure traffic in the south of England, the remaining six being transferred to Scotland for use on the diesel-hauled legs of the Caledonian Sleeper services.GB Railfreight has 16 Class 92 locomotives acquired by Europorte before the purchase of GB Railfreight.