Southern Demus Author:Michael Welch The distinctive growl of a Southern Region DEMU's 4SRKT engine has been a familiar sound across southern England for almost half a century. In the mid-1950s the SR opted for diesel-electric units that were similar in many respects to the region's existing electric rolling stock, and integrating the two fleets considerably simplified maintenance.... more » The consistent reliability and remarkable longevity of the DEMU fleet provide ample justification for that decision. Using top quality images, this all-colour volume traces the history of the various DEMU types and also includes much previously unpublished historical and technical information.« less