Bachmann 31-497SF Class 158 2-Car DMU 158839 Transport for Wales - DCC Sound

The Class 158 is one of British Rail’s most successful second generation Diesel Multiple Units (DMUs); first introduced in 1989, the entire fleet remains in traffic to this day. This Bachmann Branchline SOUND FITTED model depicts one of the units that operates in Wales and across the English-Welsh border, and the two-car unit is decorated in the modern Transport for Wales livery.

The pinnacle of OO scale second generation DMUs, the Branchline Class 158 combines high fidelity bodyshells with an underframe that’s adorned with separate components depicting the engines, electrical equipment, and auxiliary gear. It’s the livery application which really brings these models to life and every element has been replicated in miniature. Whilst the main colours are spray painted, the myriad smaller logos, symbols and lettering are applied using a specialist printing process, using BR and corporate specification fonts, logos and colours.

Driven by the low-level drive mechanism, which is fitted to each vehicle, the conductive couplings ensure that the two vehicles work together in harmony and enable the use of a single decoder for DCC operation. This SOUND FITTED comes pre-fitted with a DCC sound decoder, providing realistic sound effects when used on both analogue control and DCC straight out of the box.

MODEL FEATURES:

• Bachmann Branchline OO Scale
• Era 9
• Pristine Transport for Wales livery
• Running No. 158839
• Two-Car Unit comprising car Nos. 52839 & 57839
• Destination blinds for Holyhead
• SOUND FITTED - Fitted with a Zimo MX645P22 DDC Sound Decoder – See below for the function list
• Length 610mm

MECHANISM:

• EACH TWO-CAR UNIT COMPRISES TWO POWERED VEHICLES WITH THE FOLLOWING FEATURES:

• Three pole motor with flywheel providing drive to the inner bogie
• Twin axle drive
• Separate metal bearings fitted to each driven axle
• Trailing axles run in metal pinpoint bearings
• Electrical pickup from all wheels
• Diecast metal, multi-stage gearbox, with gearing arranged for prototypical running speeds and haulage capabilities
• 16.5mm (OO gauge) wheels to NEM310 & NEM311 standards with authentic profile and detailing
• Working miniature BSI Couplings at the cab end
• Conductive couplings with integral close coupling mechanism at the inner end
• Designed to operate on curves of second radius (438mm) or greater

DETAILING:

• Separately applied metal detail parts, including exhaust guards and interior luggage racks
• Bogies constructed from multiple components featuring brake and suspension detail
• Separately fitted underframe components
• Each model is supplied with an accessory pack comprising exhaust pipes, frame extensions and coupling tool

LIGHTING:

• Directional lighting, including illuminated destination panels, with Day/Night mode – selectable via the chassis-mounted switches or via a dedicated DCC function
• Directional lights can be turned on/off at each end independently via the chassis-mounted switches or via separate DCC functions 
• Passenger saloon lighting – switchable on/off via the chassis-mounted switches or via a dedicated DCC function
• Cab lighting at the trailing end*
• Door interlock lights* (*when used on DCC)
• Authentic light colours and temperatures selected for each lighting application

DCC:

• Plux22 DCC decoder interface – one decoder required per unit
• Easy-access DCC decoder socket located behind removable panel on underside of Car A

SOUND:

• Two speakers fitted, one in each vehicle, for optimum sound reproduction – fitted to every model as standard
• Zimo MX645P22 DCC Sound Decoder fitted to SOUND FITTED versions
• Sound files produced specifically for the Bachmann Branchline Class 158 DMU using recordings from real units
• SOUND FITTED models operate on DCC and Analogue control as supplied

LIVERY APPLICATION:

• Authentic liveries applied to both vehicles including interior decoration
• Multiple paint applications employed using BR and corporate specification colours
• Logos, numerals and text added as appropriate using multi-stage tampo printing using authentic typefaces, logos and colours

SOUNDS

F0 - Directional Lights - On / Off

F1 - On - Warm Start / F13 - On, then F1 - On - Warm Start with Compressor Speed-up / F5 - On, then F1 - On - Cold Start / F5 - On, then F13 - On, then F1 - On - Cold Start with Compressor Speed-up

F2 - Brake (Non-Latching)

F3 - Single Horn

F4 - Two-Tone Horn

F5 - Light Engine

F6 - Engine Idle / Coasting

F7 - Flange Squeal

F8 - On - Doors Opening (F1 On) / Off - Doors Closing (F1 On)

F9 - Passenger Compartment Lights - On / Off

F10 - Guard's Whistle

F11 - On - Driver's Buzzer / Off - Guard's Response

F12 - On - Driver's Twin Buzzer / Off - Guard's Response

F13 - Engine Speed Up

F14 - On - Directional Lights Day Mode / Off - Directional Lights Night Mode

F15 - Cab Lights (Trailing End) - On / Off

F16 - Air Conditioning Fan

F17 - Windscreen Wipers

F18 - On - Doors Opening (F1 Off) / Off - Doors Closing (F1 Off)

F19 - Fade All Sounds

F20 - Directional Lights Off (Car A, 57xxx)

F21 - Directional Lights Off (Car B, 52xxx)

F22 - Station Ambience

F23 - Remote Telephone Test

F24 - Detonators

F25 - AWS

F26 - No User Access

F27 - Volume Down

F28 - Volume Up

Analogue Users: Please note that basic prime mover sounds will operate and will vary according to use when this model is used on analogue control (DC) straight from the box! Directional lights and passenger compartment lights will also illuminate when power is applied.

CLASS 158 DMU HISTORY

The British Rail Class 158 Express Sprinter is a Diesel Multiple Unit (DMU), built specifically for British Rail's Provincial Services sector between 1989 and 1992 by British Rail Engineering Limited (BREL) at Derby Litchurch Lane Works and outshopped in Regional Railways Provincial livery. They were built to replace many locomotive-hauled passenger trains, thereby reducing cost of operation, and to allow cascading of existing Sprinter units to replace elderly 'heritage' DMUs. The majority of the 182-strong fleet of Class 158 units were built as two-car sets, with 17 three-car units constructed specifically for use on Trans-Pennine services. Similar three-car units were built for use by Network SouthEast but these were converted to Class 159 specification before introduced into service, with toilet retention tanks and other modifications to operate over the third-rail network.

All but one of the Class 158s remain in service today (2023), with operators including ScotRail, Northern, Great Western (GWR), East Midlands Trains (now EMR), and Transport for Wales (formerly Arriva). Former operators include Central Trains. The Class has worked extensively across the UK network, even into East Anglia as far as Stansted Airport and Norwich. Some 158s have been converted to additional Class 159s and now operate for South Western alongside their original classmates.