First introduced in 1989, it is intended to be broadly equivalent to the Boeing 757, with slightly lower range and payload, and has competitive performance and fuel efficiency in its class. It was developed for Aeroflot as a replacement for the medium-range Tupolev Tu-154 trijet. The latest version, with significant upgrades and improvements, is the Tu-204SM, which made its maiden flight on 29 December 2010. The Tu-204 was designed as a family of aircraft incorporating passenger, cargo, combi and quick-change variants. It is powered by either two Aviadvigatel PS-90 or Rolls-Royce RB211 engines. The Tu-204 is produced at two of the largest Russian aircraft manufacturing plants in Ulyanovsk (Tu-204 series) and Kazan (Tu-214). The Tu-204 cabin is available in several layouts, including the baseline single-class layout seating for 210 passengers and a two- or three-class layout designed for 164–193 passengers. A cargo version of the Tu-204 is being successfully operated by several airlines in Europe and Egypt. Seating configuration is 3–3 in economy and 2–2 in Business class. The business class cabin has a seat pitch of 810 millimetres (31.9 in). The passenger cabin can be divided into compartments according to class with removable bulkheads and curtains. Compartments are illuminated by reflected light. Overhead bins for passenger baggage and coats are of the closed type. The volume of baggage per passenger is 0.052 cubic metres (1.8 cu ft). For more details of design, operational history and variants, click here. Specifications below are for the Tu-204-100 and -120 variants.