W1 Hush Hush DCC Sound Project on ESU


W1 Hush Hush Sir Nigel Gresley Decoder available.
Please select a speaker of your choice from the Speaker menu bar.
Please also select double or single chimney from the drop-down menu below.

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This project includes playable whistle on F2 plus short, medium and long whistle.

All sounds are in fine 16-bit quality without artefacts or background noise. The whistles have a nice and subtle echo that slowly fades out.

The project offers the Low Pressure Injector (200psi)on F8 and High Pressure (Live steam) on F11

The project also offers a Low Pressure Safety Valve (200psi)

High Pressure (Live Steam)

The project also includes two power steam reverser sounds whenever the  change of direction is selected

Furthermore, our projects offer features such as

- quick response to controller commands

- active brake

- coasting mode

- volume setting by F-key

Also you can activate a shunting mode. It offers different acceleration values, adjustable automatic coasting feature and individual max speed. All values are adjustable by CVs.

Not to mention the project contains

- curve squeal

- coach doors slamming

- brake valves

- water fill sound.


Besides, coal shovelling is always synchronized with Aux1, even as a random sound. Plus a whole spectrum of authentic sounds adding to your driving pleasure.


Items sent by Royal Mail Tracked Post

W1 Hush Hush DCC Sound Project on ESU

W1 Hush Hush DCC Sound Project on ESU

We came to this result after a quite comprehensive research based upon documentation and drawings provided by the national archive.

After consultations with engineers ,technicians and drivers we had the confirmation that our details were correct.

In contrast to other compound locomotives, the W1 had a special system for starting the locomotive.

With American compound locomotives, it was common practice to start the locomotive with exhaust steam from both cylinder groups to the chimney and to supply the low-pressure cylinders with live steam.

This was possible without problems because the high pressure cylinders were operated with more or less normal steam pressure of around 250 psi.

However, the pressure of the live steam at the W1 was 450 psi, so another system was chosen in which the exhaust steam from the high-pressure cylinders was directed into a reservoir. When starting up, if the reservoir had not built up sufficient pressure, the low-pressure cylinders were instead supplied with live steam via a pressure reducer (200 psi) and a valve operated from the driver's cab.

It was technically possible to drive off without the valve open, but then the first chuffs were not noticeable. This would be possible with easy load or when shunting or when it was "too laborious" for the driver to operate the valve.

We assume that the sound of the steam escaping into the pipes from the high-pressure cylinders could only be heard faintly.

We tried to recreate this sound, and you can control it with the throttle:

Start with the controller set to speed step 4/28 and you will hear 2 "internal" chuffs, set directly to speed step 8/28 you will hear 1 "internal" chuff, set to speed step 12/28 you will immediately hear the chuffs from the chimney. You can also set the controller to speed step 4 first and then, after 2 "internal" chuffs, open it widely and you will get louder chuffs.

Single chimney

The W1 originally had two power steam reversers, one for the gear of the high pressure cylinders and one for the gear controlling the low pressure cylinders.

These could be set independently of each other.

The 2 operating levers for this were on the box that was to be found in the driver's cab to the left of the fire door. (The third lever was for operating the cylinder drain cocks.)

The steam reverser unit for the inner gears was clearly visible on the running board above the LH cylinder.

In our "single chimney" project, the steam reversers can be heard when changing direction.


Double blast pipe

At the latest (possibly earlier) when the W1 was converted to double blast pipe, it received a "screw gear operated gear control" via 2 rods, 25 ft and 31 ft long, the latter also being equipped with 2 bevel drives.

You can recognize this version by the visible front end of the 31 ft long rod in the lower area of ​​the boiler cladding on the LH side above the first drive wheel, and by the fact that the power steam reverser unit is missing on the left running board.

Due to the length of the rods and the numerous threads, there should have been a crank noise, perhaps also a faint creaking.

This noise can be heard in our "double blast pipe" project when changing the direction of travel.



Additional information

PinType 1 or 2 Chimney

Micro 8-Pin Decoder Double Chimney, Micro 8-Pin Decoder Single Chimney, Next 18 Decoder Double Chimney, Next 18 Decoder Single Chimney, O-Gauge Loksound L5 Double Chimney, O-Gauge Loksound L5 Single Chimney, Sound File Reblow Double Chimney, Sound File Reblow Single Chimney, Standard 21-Pin Double Chimney, Standard 21-Pin Single Chimney, Standard 8-Pin Double Chimney, Standard 8-Pin Single Chimney