In torrential rain that was, as can be seen here,

causing platform staff some issues 43366 stands at the rear of the 06.06 Edinburgh to Plymouth HST service. This CrossCountry power car was introduced from the summer of 1982 when BR introduced HSTs on this route replacing locomotive-hauled services. In this case, 43166 was part of set 253042 that was nominally paired with 43165 which spent their working lives on this route serving passengers ever since.