The Canberra class vessels are long overall, with a maximum beam of , and a maximum draught of . At full load, Canberra will displace , making her the largest vessel to serve in the RAN. Propulsion is provided by two Siemens azimuth thrusters, each with an onboard electric motor, driving two diameter propellers. The electricity is provided by a Combined diesel and gas system, with a single General Electric LM2500 turbine producing , supported by two MAN 16V32/40 diesel generators providing . Maximum speed is over , with a maximum sustainable full-load speed of , and an economical cruising speed of . Economical range is .