59205 L Keith McNair passes Uffington on 20 January 2011 with the 6B33 13:30 Theale to Robeston Murco oil empties. After pairs of 37s, 60s, pairs of 66s, and then back to 60s, we now have Class 59s on this long standing mega tank train. Although it looks like a completely sunny day here, there was in fact a large bank of cloud across the sun shortly before it came. However, I knew that the train's long stand in Challow loop to allow four HSTs to pass would allow time for the cloud to move away to the south.