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Class 67 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 High-low horns -
F11 Low-high horns -
F12 Fade out/in -
F13 High horn short -
F14 Low horn short -
F15 ETHEL mode (maintains idle sound at all speeds) -
Class 67 notching
CV 265 value Notch 1 Notch 2 Notch 3 Notch 4
101 1 21 36 56
102 1 13 23 38
103 1 28 46 71
104 1 33 56 91
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.
To see the class 67 in action, click here: Mr Soundguy videos