71-628

The 71-628 is a Russian fully low-floor tram model built by Ust-Katav Wagon-Building Plant since 2020. The tram is based on the unrealised 71-625 project and is a development of the partially low-floor 71-623 tram.

== History and design == The design of the tram traces back to the 71-623, which was a 40% low floor tram, that entered service in January 2008, although the desires for a fully low floor tram date to 2002, when UKVZ had intended to launch the serial production of the 71-625. Again, in 2013, it was planned to build a fully low floor tram by the end of the year, which did not materialise. In 2014, when the bogie for the tram was ready, UKVZ broke relationships with its trading house due to a change in management, which owned the patents on the design of the bogies. The design would be applied in the 71-911, developed by PC Transport Systems on the basis of the bogie for the 71-625, which the former director of the trading house, Felix Vinokur had joined. With the loss of the bogie design, UKVZ suffered setbacks in fully low floor tram production.