last site update 23rdSeptember2017


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Chinese Class QJ/JS


Visit Wikipedia for more information

Examples, photos and videos of models

YouChoos installation guides

Listen to a recording of this project
Designer: -
Configuration: -
Cylinders: 2 outside
Recordings: courtesy Dick Walker - covers QJ and JS Chinese steam locomotives

Available for all current Zimo sound decoders


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Function key allocation for default Zimo project

F0Action: Directional Lamps (AUX1 white wire and AUX2 yellow wire)
Type: FUNCTION
F1Action: Main sounds on/off and mute
Type: SOUND
F2Action: Whistle
Type: SOUND
F3
looping
Action: AUX3 green wire - configured for firebox glow effect + coal shovelling
Type: FUNCTION+SOUND
F4Action: Whistle
Type: SOUND
F5Action: Quick Select - switch between chuff sets
Type: QUICK SELECT
F6Action: Whistle
Type: SOUND
F7Action: Blow Off
Type: SOUND
F8Action: Warning Horn
Type: SOUND
F9
looping
Action: Pump
Type: SOUND
F10Action: Heavy Braking
Type: SOUND
F11
looping
Action: Wheel Flange
Type: SOUND
F12Action: Air Horn
Type: SOUND
F13Action: Air Horn
Type: SOUND
F14Action: Blow Off
Type: SOUND
F15Action: Buffer Up
Type: SOUND
F16
looping
Action: Rattle
Type: SOUND
F17
looping
Action: Pump
Type: SOUND
F18
looping
Action: Wheel Flange
Type: SOUND
F19Action: Air Horn
Type: SOUND
F20Action: Decrease Volume
Type: SOUND
F21Action: Increase Volume
Type: SOUND
F22Action: Air Horn
Type: SOUND
F23Action: Whistle
Type: SOUND
F24Action: Whistle
Type: SOUND
F25Action: Whistle
Type: SOUND

Function Key assignments listed above are the defaults for this locomotive type. If you would like a different configuration, or features swapping out (such as replacing sounds with others in the YouChoos library, or even your own sounds), then please contact us with your preferences at time of order.

Some sounds in a project may be 'generic', but the key parts of a project are always genuine sounds from the correct locomotive, unless otherwise stated.

Active Braking Option

All Zimo sound decoders now provide a facility called Active Braking. This means that the loco will coast gently to a halt if the throttle is simply backed-off, using the default CVs for momentum, and in addition (CV#3 and CV#4), a dedicated Function Key is defined as the brake key, which will slow the loco at a greater rate (defined in CV#349) - just like the real thing - you have to use the brakes to slow down quickly! The longer you hold the brake key down for, the harder the braking effect.

By default, YouChoos immersiveDrive projects DO include this feature (braking on F2), but YouChoos Traditional projects do NOT define a brake key (they provide throttle-based deceleration, which is traditionally better understood in model railway circles). However, the Active Braking feature can be included/excluded as you wish - please email us with this requirement, together with which Function Key you would like it to appear on (F2 is most commonly used), and we can easily customise the project for your order.

Quick Select Option

Zimo sound decoders provide the facility to switch between 2 engine schemes on-the-fly at the press of a Function Key (normally F5). For example, switching between light and heavy chuffs on a steam loco, or switching between diesel and electric engines on a hybrid (like the Class 73). In fact, the project may have many engine sets loaded, but only 2 are accessible from the Quick Select feature.

Many YouChoos Traditional projects include this feature (primarily steam) and others will be added as projects are updated in the future. All YouChoos immersiveDrive steam projects include this feature where QuickSelect will change from the default of a 'heavy' engine to a 'light' engine, where the chuffs are quieter.

Shunting Option

A Function Key may be defined to activate the Shunting feature, which normally has the effect of reducing the effects of momentum (CV#3 and CV#4) to 1/4 the normal rate, thus accelerating and decelerating is more responsive - suitable for shunting the loco when it is not pulling a load. In addition, we usually reduce the requested speed to half when shunting mode is activated - this is true of all of the immersiveDrive projects, which have this feature as standard, normally on F20.

Where a project includes a light engine feature (see Quick Select above), it can be effective to have the same Function Key activate Shunting.

By default, YouChoos Traditional projects do NOT include a Function Key dedicated for this purpose, but YouChoos immersiveDrive projects do. Let us know if you want its' inclusion/exclusion in your decoder changing at the time of ordering.