The Sydney Trains A set or Waratah is a class of electric multiple unit trains operated by Sydney Trains in Sydney, New South Wales, Australia. The train was named Waratah by the NSW Government after the flower of the same name, which is the state's floral emblem.
The design is based on the M set and is the largest rolling stock order in Australia's history. An option existed to extend the order but in March 2013 the government indicated it would not take this up. The 626 carriages will replace most of the 498 non-air conditioned S set carriages and provide additional capacity for passenger and network growth. Delivery commenced in July 2011 and is expected to be completed in 2014.
The sets are formed of eight carriages – a break from the previous standard Sydney practice of four car sets, which are then coupled to form eight car trains. The configuration is: driving power car + trailer car + trailer car + non driving power car + non driving power car + trailer car + trailer car + driving power car
Each power-car carried electrical equipment from different manufacturers for evaluation purposes: C3801 (Mitsubishi), 3802 (Toshiba), 3803 (Hitachi) and 3804 (English Electric). Set S10 proved unreliable and the single-deck 'Sputnik' C3701-series power-cars often deputised for Tulloch power cars out of service. In 1977, it was decided to disband the set to convert them to trailers. C3801 was converted to T4797 in 1980 and C3803 became T4799 in 1982. Conversion of C3802 to T4798 was started at Elcar Workshops, but never finished and it was later scrapped. C3804 is now preserved at the Rail Transport Museum, Thirlmere. They were withdrawn from service in February 2004.