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Class 37 functions
Function number Sound Operation
F0 - Directional lights (FOf+FOr)
F1 Startup/shutdown -
F2 Low-high horns -
F3 Low ahort horn -
F4 Brake hiss Brakes are applied
F5 - Light engine mode
F6 Air release -
F7 Coupling/uncoupling -
F8 Flange squeal -
F9 Cab lights (FO1) -
F10 Guard's whistle -
F11 Manual coast mode (maintains idle sound at all speeds) -
F12 Fade out/in -
F13 Coach door slam -
F14 High horn -
F15 High short horn -
F16 Low horn (playable) -
F17 Air dump -
F18 Spirax valves -
Class 37 notching
CV 265 value Notch 1 Notch 2 Notch 3 Notch 4 Notch 5 Notch 6
101 1 8 15 30 40 51
102 1 13 20 35 46 65
103 1 18 25 40 51 70
104 1 23 40 46 56 75
Notes
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 37 in action, click here: Mr Soundguy videos