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)
| Key | Functions | Sound slots | Volume CVs | Volume values |
|---|
| F0 | front light | 26 | 459 | 128 |
| F1 | sound on/off | 1, 2, 32 | 259, 267, 507 | 255, 255, 10 |
| F2 | brake function | 25 | 451 | 80 |
| F3 | whistle | 3 | 275 | 200 |
| F4 | coal shoveling | 5 | 291 | 100 |
| F5 | heavy load | | | |
| F6 | acceleration/brake time, shunting mode/shunting speed | | | |
| F7 | ejector sound off/on | | | |
| F8 | airpump (slow) | 6 | 299 | 35 |
| F9 | Drain Cocks | 9 | 323 | 80 |
| F10 | conductor's signal | 10 | 331 | 48 |
| F11 | coupling/buffering | 8 | 315 | 80 |
| F12 | light engine mode | 28 | 475 | 20 |
| F13 | injector | 20 | 411 | 20 |
| F14 | engine driver dialogue | 7 | 307 | 128 |
| F15 | ESU smoke generator | | | |
| F16 | safety valve | 12 | 347 | 200 |
| F17 | flange squeal | 15 | 371 | 40 |
| F18 | soundfader | | | |
| F19 | blower | 24 | 443 | 80 |
| F20 | short whistle | 4 | 283 | 230 |
| F21 | volume control | | | |
| F22 | water tank filling | 18 | 395 | 70 |
| F23 | doors open/close | 19 | 403 | 70 |
| F24 | airpump (fast) | 6 | 299 | 35 |
| F25 | handbrake apply/release | 14 | 363 | 128 |
| F26 | disable brake squeal sound | | | |
| F27 | rail joints | 17 | 387 | 45 |
| F28 | AUX3 | | | |
| F29 | automatic warning system (aws) | 22 | 427 | 40 |
Make sure that index CV31 is set to 16 and index CV32 is set to 1 before changing a volume CV.