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35-127ASF Bachmann Class 20/3 Diesel Loco number 20 309 in DRS Compass (Original) livery
The Bachmann Branchline Class 20/3 was first released in 2021, and since then we’ve improved this stunning model further by fitting marker lights at the cab ends, meaning that when operated prototypically as pairs nose-to-nose, a full complement of lighting can now be enjoyed at either end of the formation. Forming a pair of models in original DRS Blue livery is No. 20309.
This latest generation Bo-Bo diesel locomotive from Bachmann Branchline brings the classic BR Class 20 right up to date, capturing the subtle lines of these distinctive locomotives whilst sporting the modern look of the Class 20/3s – which had their ends made flush during refurbishment and fitted with Wipac light clusters and multiple working connectors. 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.
DETAIL VARIATIONS SPECIFIC TO THIS MODEL
BACHMANN BRANCHLINE CLASS 20 SPECIFICATION
F0 - Directional Lights - On / Off (plus Light Switch Sound)
F1 - On - Warm Engine Start / On (with F8 On) - Cold Engine Start
F2 - Brake
F3 - Single Horn (Speed Related)
F4 - Two Tone Horn (Speed Related)
F5 - On - Light Train Mode / Off - Heavy Train Mode
F6 - Engine Idle / Coasting
F7 - Speed Lock
F8 - Cold Start
F9 - Flange Squeal (Speed Related)
F10 - Guard's Whistle
F11 - Buffer Up
F12 - Coupling
F13 - Cab End High Intensity Light (If Fitted)
F14 - On - Night Mode Directional Lights / Off - Day Mode Directional lights (If Fitted)
F15 - Detonators
F16 - Priming Pump
F17 - Wagon Snatching & Buffering
F18 - On - Driver's Door Open / Off - Driver's Door Closed
F19 - Fade All Sounds
F20 - Nose End Directional Lights Off
F21 - Cab End Directional Lights Off
F22 - Cab Light On (Only when Stationary)
F23 - Windscreen Wipers
F24 - Compressor
F25 - Spirax Valves
F26 - Shunt Mode
F27 - Volume Down
F28 - Volume Up
Analogue Users: Please note that normal load running sounds and any other automatic or randomised sounds will also operate when this model is used on analogue control (DC) straight from the box!
CLASS 20/3 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.
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