Oliver Bulleid designed SR West Country Class with an air-smoothed body that gives the 110 samples a distinctive look. The members of West Country class ran smoothly even at high speed but they consumed too much fuel. So BR decided to re-design many of the locos with a more conventional look even in the early 1960s. Many of the non-rebuilts survived in service until 1967. F14: engine driver dialogue selectable via CV168 value 0-4 (random/specific)
F27: rail clank (4 x different selectable via SV10 value 0 to 3)
F23: doors open/close selectable via CV167 value 0-1 (passenger door/cab door)
F29: automatic warning system selectable with CV169 value 0-1 (bell/buzzer)