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Bachmann 35-353

Class 20/0 Headcode Box D8133 BR Green (Small Yellow Panels)

Manufacturer catalogue image - please note that pre-release images may be CAD renders or CGI images rather than photographs

Prototype Era
Era 5 (1956 to 1966) British Railways Late Crest

Manufacturer description

The all-new Bachmann Branchline Class 20/0 broke cover in 2021, our first New Tooling project to be unveiled in the quarterly British Railway Announcements, and now we have more new models to share with you. Sporting BR Green livery with Small Yellow Panels for the first time we have No. D8133 which is fitted with headcode boxes.

This latest generation Bo-Bo diesel locomotive from Bachmann Branchline brings the classic BR Class 20/0 right up to date, capturing the subtle lines of these distinctive locomotives. The high level of detail is brought to life by the intricate livery application, whilst the powerful drive mechanism, Plux22 DCC interface and a full suite of lighting offers the perfect complement to the model’s good looks.

 

• Bachmann Branchline OO Scale
• Era 5
• Pristine BR Green (Small Yellow Panels) livery
• Running No. D8133
• Equipped with a Plux22 DCC Decoder Socket – recommended Decoder item No. 36-570A
• Length 190mm

 

DETAIL VARIATIONS SPECIFIC TO THIS MODEL

• Headcode Boxes
• Small Cab Side Windows
• One Piece Radiator Shutter
• Two Piece Bodyside Handrail (RHS)
• Drilled Bogie Equalising Beams
• Mechanical Speedo Drive
• Original Battery Boxes
• Four Sandboxes per Bogie (Inner Pairs are supplied in the Accessory Pack)
• Round Oleo Buffers
• Buffer Tube Lamp Brackets
• Scottish-Style Bufferbeam
• Chassis Inspection Light Socket
• Nose-end Solebar Handles
• Snowploughs (optional part supplied in the Accessory Pack)

 

BACHMANN BRANCHLINE CLASS 20 SPECIFICATION

MECHANISM:

• Five pole, twin shaft motor with two flywheels providing drive to both bogies
• All axle drive
• Electrical pickup from all wheels
• Separate metal bearings fitted to each axle
• Diecast metal chassis block and bogie towers
• Diecast metal gearboxes, with gearing arranged for prototypical running speeds and haulage capabilities
• 5mm (OO gauge) wheels to NEM310 & NEM311 standards with authentic profile and detailing
• Detachable coupling pockets to NEM362 standards fitted to each bogie
• Designed to operate on curves of second radius (438mm) or greater

DETAILING:

• Bogies constructed from multiple components featuring full relief detail
• Rotating radiator fan (un-motorised)
• Separately applied metal detail parts, including handrails, grab handles, sand pipes and etched fan grilles
• Sprung metal buffers
• Each model supplied with a full set of decorated, model-specific bufferbeam pipework and accessory parts

LIGHTING:

• Directional lighting, including headlights and high intensity headlights where applicable, switchable on/off at either end on DCC or Analogue control
• Authentic light colours and temperatures selected for each model based on era and application

DCC:

• Plux22 DCC decoder interface

SOUND:

• Speaker installed in all models for optimum sound reproduction
• Zimo MS450P22 DCC Sound Decoder fitted to SOUND FITTED versions
• Sound files produced specifically for the Bachmann Branchline Class 20 using recordings from real locomotives
• SOUND FITTED models operate on DCC and Analogue control as supplied. On Analogue, an authentic engine start up sequence and running sounds are produced when power is applied

LIVERY APPLICATION:

• Authentic liveries applied to all models
• Multiple paint applications employed on each model using BR and corporate specification colours
• Logos, numerals and text added as appropriate using multi-stage tampo printing using authentic typefaces, logos and colours
• In addition, where applicable Etched Nameplates and Plaques are also provided

 

CLASS 20/0 HISTORY

The British Railways Board's (BRB) 1955 modernisation plan called for a change to alternative forms of traction and manufacturers were asked to produce trial or initial designs for evaluation. English Electric adapted an existing design based on an export model for a 1,000bhp diesel and 20 were built as a pilot scheme for assessment.

The first batch was built in 1957 and the diesels were assigned to work from Devon's Road depot, East London. The design was a success from the start and by 1962 a total of 127 had been built. Following assessment of all the Type 1 diesels, BRB placed a further order increasing the total to 228 by 1968 and the design became the BR standard for 1,000bhp diesel locomotives. With the introduction of TOPS the locomotives were designated Class 20 and renumbered 20001 to 20228. The locomotives were principally designed for freight work but also saw service on summer passenger trains where train heating was not required. The Class 20s worked over the Eastern, London Midland and Scottish regions as well as into Wales and were commonly associated with coal traffic. The only drawback the Class had was its single end cab, unlike modern designs that have a cab at each end. BR resolved this problem by regularly operating the Class 20s as pairs, nose to nose, and with the combined power of 2,000bhp they were able to haul the heavier block freight trains.

BR's decision to switch to Type 5 and in particular Class 60 diesels in the late 1980s started a gradual withdrawal of the fleet, with just 28 left by 1994. A tribute to the design is that after 45 years the Class is still in service with DRS on mainline duties following refurbishment, the resulting locomotives being designated Class 20/3s. At least 28 of the class are now preserved.

Service Manuals

Catalogue listing

Model details

Prototype information

^* Class names often change over the lifespan of a locomotive, so this is not necessarily the class name used by the operator in the period modelled.

Bachmann's latest release is the OO scale Class 20/0 diesel locomotive, which is part of their Branchline range. This model is available in BR Green livery with small yellow panels and features a unique headcode box. The locomotive is DCC ready, with a Plux 22 socket, and comes with a range of features including directional and interior lighting.

The model is 190mm in length and has a minimum radius curve requirement of 438mm. It features a five-pole, twin-flywheel motor, all-axle drive, and metal bearings on each axle. The chassis and bogie towers are diecast metal, and the gearboxes are also metal with prototypical gearing.

The locomotive has a range of detailed features, including a rotating radiator fan, separately applied metal parts, and sprung buffers. It also has a full set of decorated bufferbeam pipework and accessory parts.

The lighting system includes directional lighting, with switchable headlights and high-intensity headlights where applicable. The model is DCC ready and features a Plux 22 DCC decoder interface. Sound versions of the locomotive are also available, with a Zimo MS450P22 DCC sound decoder and authentic sound files produced from real locomotive recordings.

The Class 20/0 was a British Railways diesel locomotive built between 1957 and 1968, with a total of 228 units produced. The locomotives were used for freight work and passenger trains, and were commonly associated with coal traffic. They were eventually phased out in the late 1980s, but some have been preserved and are still in service today.

The Bachmann model is available in the BR Green livery with small yellow panels and is a highly detailed and accurate representation of the real locomotive.