Tatra KTNF6

The Tatra KTNF6 is a modernized tram of type KT4 rebuilt with a central low-floor segment. Trams of this type are used in Cottbus, in Trams in Brandenburg an [der Havel|Brandenburg an der Havel] and on the Schöneiche-Rüdersdorf Tramway in Germany, and in Tallinn, Estonia, where they are called KT6TM. A similar variant of KT4 is the KTNF8, which is used in Gera, Germany.
These trams have new interiors, chairs, doors and middle sections with low floors.
The breakdown of the type designation is as follows: