Technical Information

All Vehicles except Derby Lightweight



  • Engines: 2x Leyland O.680 diesel engines per car, 11.3 ltr / 150 bhp

  • Transmission: Mechanical - Self Changing Gears Ltd (Wilson) R14 semi-automatic gearbox

  • Electrical: 24v DC

  • Braking System: Vacuum - 21" Gresham and Craven Quick Release Vacuum Braking System

  • Controls: Air

  • Multiple Working: Blue Square


Derby Lightweight


As above except...


  • Engines: 2x AEC 220 diesel engines, 11.5 ltr / 150 bhp

  • Multiple Working: Originally Yellow Diamond but converted to work with Blue Square



More information about DMUs can be found at: