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Class 27 functions
Function number Sound Operation
F0 - Directional lights (FOf+FOr)
F1 Startup/shutdown -
F2 High horn (playable) -
F3 Low HORN (playable -
F4 Brake hiss Brakes are applied
F5 Air release -
F6 Air dump -
F7 Coupling -
F8 Uncoupling -
F9 Flange squeal -
F10 - -
F11 ETHEL mode (maintains idle sound at all speeds) -
F12 Fade out/in -
F13 High-Low short horns -
F14 Low-high short horns -
F15 High-low horns -
F16 Low-high horns -
F17 High short horn -
F18 Low short horn -
F19 Coach door slam -
F20 Guard's whistle -
Class 27 notching
CV 265 value Notch 1 Notch 2 Notch 3
101 1 18 46
102 1 27 55
103 1 36 64
104 1 46 72
F4 Brake On pressing F4 the sound of the brakes being applied will be heard. At the same time, if the throttle is set to zero, the loco will slow down as if the brakes have been applied. The rate of braking can be adjusted via CV4. For best results, and to closely simulate the prototype, it is recommended to set the F4 action on your DCC controller to 'trigger' (momentary) action, rather than latching, if your DCC system offers this as an option.
This project is powered by our Mr Soundguy RealDrive system.