The sets are allocated as DY21, DY22 and DY23 so are Derby based but I presume it may be plausible for a power car to swap onto a NL set if need be and vice vesa but I think EMT will try and keep the DY and NL sets as two as much as possible.
@LowLevel There are currently no weekend diagrams for the DY sets.
@LowLevel There are currently no weekend diagrams for the DY sets.