The class 31 Brush Type 2 diesels were built at Loughborough by Brush Traction with the prototype D5500 outshopped in October 1957. By 1959 the British Railways' first production batch of locomotives had been completed. Under the numerical classification the locomotives with original engines were placed in class 30 with re-engined examples in class 31. A total of 263 locos had entered service by 1962.
John Smith's light engine version of class 31 31190/D5613 (top) was taken at Winwick (BR green; route learner) on 8th June 2007.
Andy Appleton's example, (pic number two), of 31190, also taken at Winwick, but in maroon livery and named Gryphon, is shown heading a yellow Test Train - this pic was taken on 21st August 2006.
The class 92 pics (from Winwick) are from Geoff Monks and myself and show the only two, EWS (DBS) liveried locomotives in this class. 92001, Victor Hugo, is from Geoff; the loco is heading an intermodal container working on 17th June 2010.
The same working but with a different locomotive - 92031, The Institute of Logistics and Transport - is the subject of my pic. This pic was taken on 26th May 2010. Of particular note are the empty wagons on both trains and the different ambient lighting conditions which have resulted in contrasting photographs.