56311 emerges from Wolvercote Tunnel on 8 February 2013 with the 6Z91 10:53 Calvert to Didcot Power Station flyash empties. Despite the gloomy conditions, I was determined to 'complete the set' of DCR operated Class 56s on this working, after 56311 took over from 56303 earlier in the week. There are welcome signs of spring on the left bank of the cutting, with several lots of hazel catkins visible. However, on the other side of the line the beech leaves hint at the previous autumn.