Tatra K2

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The Tatra K2 was the first production articulated tramcar built by ČKD Tatra between 1966 and 1983, following the failure of the experimental prototypes K1 which never entered production. It was noted that the main problem with the K1 was with the new electrical equipment, and therefore the electrical equipment of the T3 (TR 37) was modified and incorporated into the new K2 (UA 12). The prototype entered service in 1966 as Prague tramcar number 7001, where it spent only a short spell, then it was exhibited at MSV 1966 in Brno (International Engineering Trade Fair) with the number 7000, before being transferred to Most, and then again moved to Brno (1968), where it at first had number 607 and later in the year 1969 it was changed to 1007. Production of the K2 on a mass scale started the same year, and many examples was operated in the year 2020, albeit most having been extensively modernised. The modernisation of the K2 fleet in Brno, the biggest customer of the type, included the complete re-modelling of the front end, and the upgrading of their electronic equipment. These modernised examples were labeled K2R, whereby the 'R' stands for czech word rekonstrukce (in translate 'reconstructed'). 2 cars were rebuilt into Pars Nova K3R-N (numbers 1751-1752). From this car was derived a type Tatra K5 in the year 1968. The last Brno K2, 1080, was retired from service on 19 April 2026.