Class 20s have operated the South Yorkshire based RHTT circuits for nigh on 10 years now; the majority of those operated by DRS with the exception of 2011 which was DB Schenker operated with hired in Class 20s. Restrictions for a tunnel on the Penistone line have prevented anything other than 20s or 37s (excluding those with roof mounted horns) from operating over the line.
In the first couple of years of operation, DRS supplied 20301-305 from the initial batch refurbished by Brush Traction as the later 20306-20315 batch refurbished by RFS were heavier. Occasionally supplemented by a 37 or – in 2016 – a 68, that batch of five locos have remained pretty consistent on the turns.
Rumours abound that 2017 is to be their last year of operation so quite what the future holds traction wise, nobody knows!
The two photos below show 20305 (top) and 20302 (bottom) at Sheffield in October 2007.