Manawanui Class New Zealand Dive Support, Hydrographic and Deep Sea Salvage Vessel
Manawanui Class
Deep Submergence Rescue Vehicle
Other
Basic Information
Name
Manawanui Class New Zealand Dive Support, Hydrographic and Deep Sea Salvage Vessel
Designation
Manawanui Class
Alternate Designation
Manawanui Class; HMNZS Manawanui
Equipment Type
Deep Submergence Rescue Vehicle
Manufacturer
—
Date of Introduction
2019
Description
HMNZS Manawanui is a 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. HMNZS Manawanui delivers the ability for diving and hydrographic specialists to embark and conduct specialized operations such as surveying of lakes, coastlines, and harbors, underwater explosive disposal, mine countermeasures, and underwater search and salvage. Possible missions for the ship include surveying harbors 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.
Naval & Littoral Specifications
Crew
66
Beam
18.00 m
Draft
6.80 m
Variants
HMNZS Manawanui
HMNZS Manawanui is a multi-role offshore support vessel currently commissioned in the Royal New Zealand Navy. The ship replaces two decommissioned vessels, the hydrographic survey ship HMNZS Resolution and the diving support vessel HMNZS Manawanui.
System
Alternative Designation
Manawanui Class; HMNZS Manawanui
Type
Dive Support, Hydrographic and Deep Sea Salvage Vessel
Builder
Myklebust Verft AS
Operations
The ship is capable of performing a range of operations such as disaster relief, underwater search and recovery, mine detection and explosives disposal, as well as limited mine countermeasures. Manawanui can be used to assist the naval forces by carrying out surveys of the coastline and harbours. It will also assist government agencies such as the New Zealand Police, Customs Service, Ministry for Primary Industries and Ministry of Civil Defence and Emergency Management.
Crew
66 (39 crew + 27 mission specialists)
Maximum Cargo Capacity
800 tons
Crane Capacity
100 tons
Dimensions
Length
84.7 m
Beam
18.0 m
Draft
6.8 m
Deck Area
700 m2
Moon Pool, Length
7.5 m
Moon Pool, Width
3.5 m
Weight, Full Load
5,700 metric tons
Maximum Cargo Capacity
450 metric tons
Dive Systems
Positioning System
Navigational requirements of HMNZS Manawanui are served by the on-board K-POS Dynamic Positioning 2 (DP2) System supplied by Kongsberg Gruppen.
Dive Systems
Dive Systems: IHC Hytech 3 x person wet bell and Surface Supply Breathing Apparatus through an enclosed moon pool. Recompression chamber.
Hydrographic Systems
Hydrographic Systems: 1 x Kongsberg EM712 Multi Beam Echo Sounder and 1 x EA 440 Single Beam Echo Sounder.
Remotely Operated Vehicle
1 x Seaeye Cougar-XT Remotely Operated Vehicle.
Propulsion System
Engine Name
2 x Mitsubishi S6B3 MPKT and 2 x MAN1750D
Engine Type
Diesel
Engine Power
10,300 bhp total
Bow Thrusters
2 x aft azimuth thrusters; 2,200 kW each; 2 x forward tunnel thrusters; 1,150 kW each; 1 x forward retractable thruster; 1,350 kW
Maximum Range
7,800 nm (14,450 km) at 13 knots (24 km/h)
Maximum Speed
13 knots (24 km/h)
Endurance
30 days
Gun Weapon Systems
Gun Weapon System #1
Name
2 x M2 Browning .50-caliber Machine Guns
Type
Heavy Machine Gun
Caliber
7.62 mm
Length
1,654 mm
Barrel Length
1,143 mm
Weight
38 kg
Action
Short recoil-operated
Rate of Fire
450–600 rounds/min
Muzzle Velocity
890 m/s
Maximum Firing Range
7,400 m
Effective Firing Range
1,800 m
Feed System
Belt-fed (M2 or M9 links)
Gun Weapon Systems #1 Ammunition
Type
Rifle
Caliber
7.62 mm
Cartridge
12.7×99mm NATO
Basic Load
INA
Aviation Facilities
Facilities
Open deck, no hanger.
Aircraft
1 x SH-2 Seasprite or NH90 (flight deck only)
Boats and Landing Craft
Rigid-Hulled Inflatable Boat (RHIB)
Carries 2 x Rigid-Hulled Inflatable Boats (RHIBs).
Sonar Systems
Multi-Beam Echo Sounder
1 x Kongsberg EM712 multibeam echo sounder.
Single-Beam Echo Sounder
1 x EA 440 single-beam echo sounder.
Protection
Hull Armor
INA. The bridge features floor-to-ceiling windows for improved visibility and situational awareness. Conning stations are located on the forward, port and starboard sides of the bridge to allow the ship to be controlled from those sides while docking.
Countermeasures
INA
NBC Water Washdown System
Yes
Image Sources
Notes
https://en.m.wikipedia.org/wiki/File:Aft_view_of_HMNZS_Manawanui_(A09)_underway_in_the_Pacific_Ocean_on_18_August_2020_(200818-N-SH168-1093).JPG; https://www.naval-technology.com/projects/hmnzs-manawanui/; https://www.naval-technology.com/projects/hmnzs-manawanui/;
Details
Country of Origin
New Zealand
Category
Special Purpose Ships
Naval > Special Purpose Ships
Filter Label
M
Classification
Domain
Naval & Littoral
Equipment Status
Active
Dimensions
Length
84.7 m
Width
—
Height
—
Weight
5700000 kg
Operators (1)
New Zealand
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