Baureihe 423

About the real one:

AdTranz/Bombardier built DB class 423 EMU used for S-Bahn passenger services in the Rhein-Main Metropolitan area. Together with their successor classes 422/430 they form the backbone of four West German S-Bahn systems and are operated solely by the Deutsche Bahn company.

Each 4-car unit has two seperate traction equipments, connected to one single pantograph. A total of eight out of ten axles are driven by watercooled 3-Phase-AC-traction motors, which are also used for dynamic braking. The same eight axles feature conventional electropneumatic braking equipment, with the Jacobs-bogie in the middle being neither braked nor powered, as this bogie is equipped with sensors for speedmeasuring and parts of the “WSP” (wheel slip/slide protection).
Furthermore each unit is fully airconditioned and 24 doors ensure a fast passenger exchange at the stations.

About the moc:

Original idea by “Kai P.” from somewhere around 2008. When I build this train in 2016, his initial moc was heavily modified by me and further updated throughout the years as new parts and techniques became available.
Click here for a video of the original 2008 moc.

The moc itself consists of four individual coaches with fully detailed interiors, such as passenger compartments and the drivers cabs. Many of the details are as close to the real train as possible, notably the arrangement of the underside and roof mounted details.

This moc is for experienced builders!

Custom parts: Ball bearings

Optional parts: Metal washers to recreate the disc brakes on axles 3,4,7,8 (get them from any DIY-store)

Minimum radius: R104

Rare parts: This set contains a large amount of rare/discontinued/expensive parts. I’d recommend to use third party products as substitutes for the 48 red train windows with inserts.

Power: 9V by default, Power functions or Powered Up can be used too but requires modifications to fit the battery boxes and receivers.

Behind the scenes:

One of the main reasons why I’ve build this moc isn’t its sheer size and complexity, but more the fact that I’m actually certified to operate the real train! My knowledge of the vehicles insides and outsides really helped me recreating it with bricks, hence the addition of rather small and perhaps unneccessary details.

Last but not least, any feedback or criticism regarding the moc or the instructions is greatly appreciated. Also tell me if there are any errors or mistakes in the build/instructions (took me a whole week to create the thing…).

German railbus VT 95

Starting in 1948, i.e. before the founding of the Bundesbahn, work began on the design of a lightweight two-axle railcar. The first prototypes were in service from 1950. Series production began in 1952. A total of 557 railcars of the series version and a similar number of sidecars were built for the DB. The vehicle was also procured by foreign railroads. The last vehicle was in service with DB until 1983.
The twin-engine VT 98s procured in series from 1995 onward were in service until 2000.

The model was based on an idea by Flogo, but the drive and dimensions were changed.

German battery powered small locomotive Ka 4015 (381 101-5)

At the beginning of the 20th century, battery-electric mobility made its debut on the Deutsche Reichsbahn. The best-known representative of this type are the Wittfeld accumulator railcars, which were used until 1907.

Starting in 1930, the Reichsbahn procured prototypes of the newly introduced class of “small locomotives.” These vehicles were intended to facilitate shunting operations at smaller stations. Maintaining a steam locomotive there was far too costly. In addition to the prototypes with internal combustion engines, some storage locomotives were also built.

The later production vehicles of the battery-powered small locomotives were largely based on the Köf II in terms of propulsion and design. The AEG prototypes, on the other hand, consisted of a chassis with a roof. In other words, a prototype reduced to its pure functions. AEG locomotives were powered by two Tatzlager motors. Such a bizarre “gazebo” is preserved with the Ka 4013 in the Railway Museum Bochum-Dahlhausen.

The prototype of my model received a cab somewhat reminiscent of the Einheits-Köf in 1941. The decommissioning by the Bundesbahn took place on 01.02.1973 at the Bw Haltingen. After that, the locomotive was still in service for almost 20 years in Basel for the logistics service provider Interfrigo. The vehicle is preserved in the Bavarian Railway Museum in Nördlingen.

The motorization of my 9 knob wide model is done by circuit cube. The black saucers used only appear with the set 76417. In addition, a few hoses need to be cut.

Winner 2021 in the category Electric Locomotives of the Brickmodelrailroader.


Tramway Railgrinder Aachener Straßenbahn TSS 1

In 1940, a grinding car was built for the Aachen tramway by the Schörling company on the basis of an old railcar from 1895. The vehicle was designated TSS1 and was in service until the end of operation in 1974. The vehicle was also part of the farewell parade.

Except for the 2x2x2 roof tiles in orange, the model can be built entirely from original bricks. The model is not motorized. However, this should be feasible by means of Circuit Cube. Space inside is available.

Similar vehicles were in service in other cities, both standard gauge and meter gauge.

single axle sidecar VB 141 for german railbus

For the transport of skis with the excursion railcars of the Reichsbahn a corresponding trailer was designed, but not realized. In the mid-50s, the Bundesbahn took up this idea and had a corresponding vehicle built. Even though the trailers were actually used with the VT90 and ET91 observation railcars, the larger number served to transport bicycles and luggage with the single-engine VT95 railbuses. Photos are avaiable in the histroic forum of “Drehscheibe-online”.

Behind this type designation is a rare trailer for the single-engine Uerdingen rail bus VT95. With this, some bicycles or luggage could be taken along, even if the railcar was traveling without a sidecar, which had a luggage compartment.

The quaint verhicle was in service between 1952 and 1961. Only in the Passau area did two trailers survive until 1968.

Even though I made the model hinged. Unfortunately, bicycles cannot be transported in it. At least a few suitcases fit inside. And, since the railbus was sometimes mocked as a piglet cab (“Ferkeltaxi”), it can also be used as a pig trailer.

covered freight wagon “Litera H” K.W.St.E.

Covered goods wagon for the transport of livestock of the Royal Würrttemberg State Railway. One such wagon, built in 1891, is preserved by the Schwäbische-Alb-Bahn. From about 1905 onwards, the Württemberg goods wagons were given the uniform brown livery.

Self-printed wheels are used for the model. Black saucers are needed for the buffers, which unfortunately are not available anywhere. The STL files for the printed objects are included in the “Model Download”.
For the green version, individual parts are needed that are currently not available from Lego. In this case, third party manufacturers must and can be used.

German railroad speeder Klv12 (Dr. Alpers and Beilhack)

Motordraisine Klv 12

Bahnmeister-Draisine Klv 12 (Deutsche Bundesbahn)

For the “Oc TRAIN ber 2020” competition of the BrickModellRailorader, a diorama was created that centered on the Klv12 motorized railcar of the Deutsche Bundesbahn. This trolley was used by the railroad maintenance depots for inspection trips and minor maintenance work. With a VW industrial engine derived from the Beetle engine with 28 hp, the trolley travels up to 70 km/h.

Between 1953 and 1962, the companies Draisinenbau Dr. Alpers Hamburg, FKF-Werke Fa. Schmitt and Beilhack GmbH produced a total of 696 units of the Klv12. Between 1958 and 1961, a further 79 units of the similar but four-door Draisine Klv12 were also built.

Due to its size, the model is not motorized in the instructions. Using some 3D printed parts and a circuit cube, I built a powered version.

Klv 12, Kl 12-4976, AW Nürnberg, 03,08.1984