The sensor suite consists of a STN Atlas 9600 APRA I-band navigational radar, a C-Tech CMAS 36/39 hull-mounted sonar, an Atlas Fansweep-20 multibeam echo sounder, an Atlas Hydrographic Deso single-beam echo sounder, and a Klein 2000 towed sonar [REF].
Leeuwin was ordered from NQEA Australia on 2 April 1996, and built at the company's shipyard in Cairns [REF].