ZiU-5

thumb|right|300px|1966 ZiU-5

The ZiU-5 (in Russian ЗиУ-5) is a Soviet trolleybus model that was built by the Uritsky factory. The ZiU acronym stands for Zavod imeni Uritskogo (in Russian Завод имени Урицкого, ЗиУ), which translates as Plant named after Uritskiy (Moisei Uritsky, a Russian revolutionary). This model of city trolleybus was in mass production from 1959 to 1972. The total number of ZiU-5s produced exceeded 14,500 vehicles. This allowed the ZiU-5 to become dominant model of trolleybus in Soviet towns and cities of that time. The last vehicles were withdrawn from active service in the mid-1980s (the exact date varies from city to city). The small number of surviving vehicles are kept now for museum purposes.