HMNZS Manawanui – A09

HMNZS Manawanui is our diving support, hydrographic and deep sea salvage vessel. The ship provides our Navy with the ability to conduct a range of specialist diving, salvage and hydrography tasks around New Zealand and across the South West Pacific.

Commanding Officer

Lieutenant Commander Andrew Mahoney, RNZN


HMNZS Manawanui delivers the ability for diving and hydrographic specialists to embark and conduct specialised operations such as surveying of lakes, coastlines and harbours, underwater explosive disposal, mine counter measures and underwater search and salvage. Possible missions for the ship includes surveying harbours and approaches after a natural disaster prior to larger support ships landing support equipment and personnel, providing support to the ongoing mission to eradicate explosive remnants of war in the South Pacific and salvage operations to find and recover submerged objects.

Contributing towards New Zealand’s maritime presence in the region, HMNZS Manawanui also supports government agencies including the Police, Customs, Ministry for Primary Industries and Ministry of Civil Defence and Emergency Management.


  • Propulsion System: 4 x diesel electric generators powering 2 x azimuth propulsion systems and 3 x bow thrusters
  • Positioning System: Kongsberg K-POS Dynamic Positioning 2 (DP2) System
  • Dive Systems: IHC Hytech 3 person wet bell and Surface Supply Breathing Apparatus through an enclosed moon pool. Recompression chamber.
  • Hydrographic Systems: Kongsberg EM712 Multi Beam Echo Sounder and EA 440 Single Beam Echo Sounder.
  • Remotely Operated Vehicle: SAAB Seaeye Cougar Remotely Operated Vehicle
  • Length: 84.7 m
  • Beam: 18.0 m
  • Draught: 6.8 m
  • Displacement (Full): 5,741 tonnes
  • Range: 7000 nautical miles
  • Speed: 13 knots
  • Core Crew: 39