Still Fixing Up UVs The Sydney Trains A & B sets, both also known as Waratah, are classes of electric multiple unit trains operated by Sydney Trains in Sydney, New South Wales, Australia. The trains were named Waratah by the New South Wales Government after the flower of the same name, which is the state's floral emblem. The Waratah design is based on the M set. The initial order for 78 series 1 Waratahs was the largest rolling stock order in Australia's history. These 626 A set carriages make up around half of the Sydney Trains fleet, and replaced two-thirds of the 498 S set carriages. Delivery commenced in July 2011 and was completed in June 2014. An order for an additional 24 trains of a similar design was placed in December 2016. These are known as B set or Waratah Series 2 trains, with the delivery of all remaining sets completed in 2019.[1] The first entered service in September 2018. The first of a further 17 B sets is set to enter service in September 2020.