Protector class IPV
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 HMNZS Rotoiti, third ship of the class |
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| Class overview | |
|---|---|
| Name: | Inshore Patrol Vessel (IPV) |
| Builders: | Tenix Shipbuilding, Whangarei |
| Operators: |  Royal New Zealand Navy |
| Preceded by: | Moa-class patrol boat |
| Succeeded by: | N/A |
| Cost: | NZ$25 million (per vessel, 2008) |
| In commission: | To commission 2008 |
| Building: | 3 |
| Planned: | 4 |
| Completed: | 1 |
| Active: | 1 |
| General characteristics | |
| Type: | inshore patrol vessel |
| Displacement: | 340 tonnes (loaded) |
| Length: | 55 metres |
| Beam: | 9 metres |
| Draft: | 2.9 metres |
| Propulsion: | Two MAN B&W 12VP185 engines rated at 2,500 kW at 1,907 rpm ZF 7640 NR gearboxes Two controllable pitch propellers |
| Speed: |
Top speed 25 knots (46 km/h) |
| Range: | 3000 nm (6000 km) |
| Boats and landing craft carried: |
2 x RHIB with diesel-pwered three-stage jet units |
| Complement: | 36 (includes 4 government agency staff and up to 12 others)[1] |
| Crew: | 20 |
| Armament: | 2 x 12.75 mm machine guns Small arms |
| Notes: | [2] |
The Protector-class inshore patrol vessel is a new class of inshore patrol vessels (IPVs) under construction for the Royal New Zealand Navy (RNZN) and intended to replace the RNZN's Moa-class patrol boats.
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[edit] Design & Construction
Conceived as part of Project Protector, the Ministry of Defence acquisition project to acquire one multi-role vessel, two offshore and four inshore patrol vessels. The Project Protector vessels will be operated by the RNZN to conduct tasks for and with the New Zealand Customs Service, the Department of Conservation, Ministry of Foreign Affairs and Trade, Ministry of Fisheries, Maritime New Zealand, and New Zealand Police. The future duties will include maritime surveillance and boarding, support to civilian agencies such as the customs service and search and rescue duties.[2]
The ships are built in Whangarei by Tenix Shipbuilding, and are based on a modified search and rescue vessel for the Philippine Coast Guard, with a different superstructure design. The cost for the four vessels is to be NZ$100 million..[2] Friction stir welding was used in the construction of the superstructure, and Donovan Group being the first Australasian company to use the technique is credited as having won them the contract for this part of the vessel's construction.[2]
[edit] Capabilities & Features
The IPVs will normally be used for inshore tasks within 24 nautical miles (40 km) of the coastline.[2] However, they will have operational ranges of 3,000 nautical miles (5,560 km). Together with their improved speed, this will be sufficient to intercept, for example, large off-shore trawlers fishing illegally in New Zealand waters.[2]
The vessels are intended to achieve 950 patrol days per year and allow sufficient crew rest, multi-crewing of the four boats with a total of six full crews.[citation needed]
They will have the ability to patrol (including receving vertical replenishment) in up to sea state 5 (seas rough, waves 2.5- 4m) and have the ability to survive in conditions of up to sea state 8 (seas very high, waves 9 - 14m). However, boat deployment and recovery will be limited to sea state 4 (seas moderate, waves 1.25 - 2.5m). These parameters are much more capable than the Moa Class which they replace.[2] The shipbuilder (Tenix Defence) claims "the vessel is more than capable of extending the Crown's operational envelope to southern ocean patrol duties".[citation needed]
[edit] Names
On March 31, 2006 the Hon. Phil Goff, Minister of Defence, announced that the IPVs will be named
- HMNZS Hawea (P3567) (delivered in December 2007)
- HMNZS Pukaki (P3568) (delivered in March 2008)
- HMNZS Rotoiti (P3569) (delivered in September 2007)
- HMNZS Taupo (P3570) (delivery planned for June 2008)
These ships' names come from New Zealand lakes: Rotoiti and Taupo in the North Island, Hawea and Pukaki in the South Island. They were also the names of Lake class patrol boats and frigates previously operated by the RNZN.
[edit] See also
[edit] References
[edit] External links
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