B class Melbourne tram

The B class is a class of articulated trams on the Melbourne tram network, each made of two sections carried on three bogies. Two B1 prototypes entered service in 1984 and 1985, and they were followed by 130 B2 class trams built between 1987 and 1994 at the Dandenong factory, first by Comeng and later by ABB after it acquired the builder. The class was developed for the conversion of the St Kilda and Port Melbourne railway lines to light rail. The B class were the first articulated trams in Melbourne, and the B2 sub-class were the first air-conditioned ones. The B1 prototypes were withdrawn in 2018, while the B2 trams remain in service with Yarra Trams on routes across the network.