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Hitachi Class 800 IET Hybrid EMU/DMU


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Listen to a recording of this project

Prime Mover: MTU 12V 1600 R80L (V12 diesel + overhead lines)
Recordings: GWR Stock

Activating Shunt Mode in this project will reduce the top speed to half, and also reduce the effects of momentum during acceleration and deceleration to a quarter their normal rates, making the loco respond more quickly to throttle changes.
For double the fun, you can pair up 2 sound decoders with a front and rear version, which includes slightly different timing in the engine sounds, as well as directional sounds - send us a note when you order if you would like a matching front+back pair.
This project provides switching between 2 engine types (usually diesel and electric), which is selected through the Quick Select feature, best done at standstill (be patient as transitions can take a few seconds).



Choose which project variant you want...

immersiveDrive (with Active Braking Key)
SINGLE - Single sound decoder
immersiveDrive (with Active Braking Key)
FRONT - Front-end for a matched pair
immersiveDrive (with Active Braking Key)
REAR - Rear-end for a matched pair
Traditional (Throttle Braking)
SINGLE - Single sound decoder
Traditional (Throttle Braking)
FRONT - Front-end for a matched pair
Traditional (Throttle Braking)
REAR - Rear-end for a matched pair
immersiveDrive (with Active Braking Key)
MS16Bit - For Zimo MS Series only
Traditional (Throttle Braking)
MS16Bit - For Zimo MS Series only
immersiveDrive (with Active Braking Key)
MS16BitFRONT - For Zimo MS Series only - Front-end for a matched pair
immersiveDrive (with Active Braking Key)
MS16BitREAR - For Zimo MS Series only - Rear-end for a matched pair
Traditional (Throttle Braking)
MS16BitFRONT - For Zimo MS Series only - Front-end for a matched pair
Traditional (Throttle Braking)
MS16BitREAR - For Zimo MS Series only - Rear-end for a matched pair

immersiveDrive

Add to basketSINGLE - Single sound decoder
F0AUX1/FOfwd + AUX2/FOrev directional lights
F1MainSounds
F2Active Brake
F3Horn
F4Horn
F5QuickSelect (switch between diesel and electric)
F6AUX3/FA1
F7Notch Up
F8Comms
F9Guard's Whistle
F10Doors
F11Brake Release
F12AUX4/FA2
F13Announcement
F14Wheel Flange
F15Coupling Up
F16Compressor
F17Rail Echo
F18Horn
F19Mute
F20ShuntingMode+Half Shunt
F21Horn
F22Coast
F23Doors
F24Announcement
F25Announcement
F26--unassigned--
F27Volume Decrease
F28Volume Increase

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 or more engine schemes on-the-fly at the press of a Function Key. 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, a project may have many engine sets loaded, in which case we usually assign consequtive function keys to provide access to them - referred to as Quick Select.

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.

Many of our YouChoos Traditional projects also include a Function Key dedicated for this purpose, but not all, so let us know if the one you want doesn't have it and we can pre-configure it for you at the time of ordering.

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