In the early 1980s, the Urban Transit Authority ordered nine catamaran ferries from Carrington Slipways, Tomago.
They were to replace the K-class and wooden Lady class ferries on Sydney Harbour.
It was originally intended that they would operate services on the Parramatta River, but they generated too much wash.
[2] Between 2020 and 2022, eight of the ferries underwent life extension rebuilds to extend their lives for a further 10 years.
The work was undertaken by Birdon at Port Macquarie and included new engines, refurbished interiors, the provision of air conditioning and additional safety features.