All three pics today, 20th April 2011, from three photographers, feature AC electric locomotives. Class 86/4 locos, modified from from 86/3s between 1984-87 were further modified in 1990 to become class 86/6s. The modifications were carried out at BR Crewe. Class 90 locos were built by BREL at Crewe between 1986-88. The class 92s were built between 1992-96 by Brush Traction at Loughborough, and are the most powerful of the three described, with a tractive effort of 90,000lb (with 'boost').
The first shot is from Jeff Nicholls. Double heading Freightliner class 86s, 86622 and 86605, are shown heading an intermodal working, souhbound, through Winwick on 14th April 2011. 86622 was previously numbered 86405, 86005, 86008 and E3103; 86605 was previously numbered 86405, 86005 and E3185.
John Smith's shot of Freightliner class 90, 90046, is next. The loco is also heading an intermodal working, southbound, but the location is Red Bank. The pic is dated 12th April 2011.
The final shot is from yours truly and features EWS (DBS) class 92, 92003 Beethoven, on yet another intermodal working (its a change from coal....), southbound, through Winwick on 16th March 2010.