[1] The tugboat was built with a riveted steel hull, but welding was used on the bulkheads and fuel bunkers for the first time in an Australian shipyard.

[2] Named Wattle and operated by a civilian crew, the vessel was primarily used for warship towing and manoeuvring, and was also employed as a target tower.

The RAN marked the tugboat for disposal in 1969, and she was purchased by a Sydney-based syndicate, who operated the vessel on tourist cruises around and outside Sydney Harbour.

[1] In addition to multiple 'firsts' in construction, the vessel serves as an important example of Depression-era shipbuilding and the transition of technology occurring at this time.

The leader of the female prisoners, 'Top Dog' Rita Connors, plans to use the temporary freedom to kill her rival, a guard called Ferguson, or the Freak.