The Class 40 Preservation society's' www.cfps.co.uk/ 40145 on her long awaited return to the mainline slogs past Kettlesbeck Bridge, Clapham, in the glorious North Yorkshire Dales sunshine. We were very close to missing this as it was running early, luckily we didn't, and luckily the weather turned out excellent.The sound of this passing working flat out with a heavy load was very impressive.