This was some video footage taken at my local Heritage Railway the Bo'ness and Kinneil Railway, at one of their weekend Diesel Galas in the summer of 2012 with the weather being a rather mixed bag but we can expect this here in Scotland.
Locomotives on duty that weekend : GBRf 66727 ANDREW SCOTT CBE,
47270 SWIFT,
37175 "W.S. Sellar",
27001,
26024,
26038,
Class 303 Glasgow Blue Train,
NBL British Railways No.D2767,
British Railways No.D3558 (08443),