Product Features and Details
Coach 1st/2nd class
Replica of MD 42 with automatic load braking and brake blocks
Replica of sliding windows with aluminium frames
With G150 alternator
Model with interior lighting contains an interface with soldering points
The conversion programmes for 3yg- and 4yg coaches allowed the Germanï¿½Federal Railway to address the shortage of coaches caused by the war forï¿½the first time from the mid-1950s. However, the construction programmesï¿½were limited initially to developing urban rapid transit and express trainï¿½coaches. Following this, the German Federal Railway created capacity forï¿½developing new commuter coaches (n-coaches).ï¿½
The constantly growing demand for increased traffic volume and the factï¿½that the 3yg had only been designed for a short service life, led to theï¿½appearance of the first prototypes for the new n-coaches in 1958. Basedï¿½on the findings of the preceding new developments and prototypes, threeï¿½basic types emerged with five 1st class compartments in the centre of theï¿½coach and two large 2nd class cabins (AB4nb), three large 2nd class cabinsï¿½(B4nb) and two large 2nd class cabins and baggage compartment withï¿½space for the train conductor (BD4nf). Although prototypes had also been trialledï¿½with side panels made from aluminium, standard steel and corrugated sideï¿½walls, metal panelling made from stainless steel (V2A) was eventually chosenï¿½for mass production. Since the coach paintwork corrosion protection was notï¿½required for this material, the n-coaches were abraded under the windowsï¿½using a peacock eye pattern. This abrading pattern and the silver surface of theï¿½V2A quickly earned the n coach the distinctive nickname 'Silberlinge'.ï¿½
Except for a few models fitted with lightweight design Minden-Deutz bogies,ï¿½the n-coaches were fitted with block brakes (MD42), which were replaced withï¿½disk brakes (MD43) in later series. In order to change passengers as quickly asï¿½possible, the otherwise common end entrances were abandoned and positionedï¿½approximately a third of the way along the coach as double entrancesï¿½with hinged-folding doors. The basic design of the n-coach proved so successfulï¿½that between 1960 and 1980 a total of about 5000 coaches were constructed by different coach manufacturers as well as at the Karlsruhe and Hannoverï¿½refurbishment facilities (Aw). At first, conditions in the extremely crampedï¿½conductor's space in the BD4nf were less than ideal, and it was soon nicknamedï¿½the 'rabbit hutch' by staff, leading to discontent and safety concerns.ï¿½As a result, Aw Karlsruhe rebuilt the conductor's cab, producing aï¿½control car in 1972 with a fully-fledged conductor's cab without anyï¿½through access to the next coach. These changes meant that the Karlsruheï¿½version differed significantly from the previous 'rabbit hutch' with itsï¿½passageway between the coaches.ï¿½From the mid-1980s, the Federal Railways started to modernise coachesï¿½that were in some cases already 20 years old. Following several designï¿½studies, the positive features of the individual programmes were combinedï¿½at Aw Hannover in the new Hannover design. New features also consistedï¿½of the mint green paintwork or new sliding windows with plastic frames. Thisï¿½design, which was also installed by PFA Weiden or OFV Verona using alternativeï¿½interior colours, can still be found in modern n-coaches that have beenï¿½painted in the DB AG corporate colours.
Other conversions were performed on the control cars. The two designs that hadï¿½been introduced earlier were only suitable for either diesel or electric traction,ï¿½depending on the control panel installed. For this reason, a new conductor's cabï¿½was designed at Aw Wittenberge, based on the DB standard driver's cab of theï¿½BR 111, so that the control cabs could be deployed with greater freedom.ï¿½Numerous 'rabbit hutches' and also Karlsruhe versions were subsequentlyï¿½converted to the Wittenberge model. In order to meet the demand for push-pullï¿½trains, DB AG also included standard 2nd class coaches in the conversion programme.