Produced in the factories of ČKD Tatra in 1979–1990
Between 1981 and 1990, 73 new trams of this model were put into service in Tallinn
Used trams of the same type were purchased from Germany:
in 1996: 9 pcs (Gera)
in 2004: 10 pcs (Cottbus, Gera)
in 2006: 7 pcs (Frankfurt, Erfurt)
in 2007–2013: 31 pcs (Erfurt)
Length: 18,110 mm
Width: 2,200 mm
Height: 3,110 mm
Capacity: 169 people (eight per m²), including 36 seated
Maximum speed: 65 km/h
Number of axles: 4
Traction motors: TE022, 4 × 40 kW
Unladen weight: 19,800 kg
Maximum authorised weight: 31,400 kg
Articulated tram KT6
Extended version of the KT4 with a modernised traction drive (traction transformer based on IGBT transistors) and a central low-floor segment.
The low-floor central segments were manufactured in Mittenwald, Germany, and the traction drive was modernised in cooperation with the Tallinn University of Technology.
KT6 type trams were put into service as follows:
two in 2001
ten in 2004
Length: 26,770 mm
Width: 2,200 mm
Height: 3,770 mm
Capacity: 246 people (eight per m²), including 55 seated
Number of axles: 6
Traction motors: TE022, 4 × 40 kW
Unladen weight: 27,100 kg
Maximum authorised weight: 43,900 kg
Retro tram
AS Ühinenud Depood produced the retro trams for the Kadriorg route on the basis of KT-4. The first retro tram, which was put into service in October 2017, was named after President Konstantin Päts. The next five retro trams were named after Johann Laidoner, Julius Kuperjanov, Jaan Poska, Jüri Vilms and Ernst Jaakson.
Length: 18,110 mm
Width: 2,180 mm
Unladen weight: 19,800 tonnes
Gross (laden) weight: 31,400 tonnes
Seats: 33 + 1 driver
Standing places: 136
Number of doors: 4
Number of axles: 4
Speed: 60 km/h
Supply voltage (V): 600 V
Output power of traction motors: 4 × 45 kW
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