The Royal New Zealand Navy is the maritime arm of the New Zealand Defence Force. The fleet currently consists of nine ships. The Navy had its origins in the Naval Defence Act 1913, and the subsequent acquisition of the cruiser HMS Philomel, which by 1921 had been moored in Auckland as a training ship. A slow buildup occurred during the interwar period, and then in December 1939 HMS Achilles fought alongside two other Royal Navy cruisers at the Battle of the River Plate against the German ship, Graf Spee.
HMNZS Charles Upham (A02) was a Mercandian 2-in-1 class roll-on/roll-off vessel operated by the Royal New Zealand Navy (RNZN) between 1994 and 2001. The vessel was built for the Danish shipping company Mercandia during the early 1980s, and operated under the names Mercandian Queen II and Continental Queen II. The New Zealand Defence Force had identified the need for a logistic support ship as early as the 1970s but it was not until the 1991 white paper that planning to acquire a ship commenced in earnest. Mercandian Queen II was for sale around that time, and although not as capable as the RNZN had initially specified, was purchased in 1994.
USNS Stalwart (T-AGOS-1) was a Modified Tactical Auxiliary General Ocean Surveillance Ship and the lead ship of her class.
Stalwart-class auxiliary general ocean surveillance ships (T-AGOS) are a class of United States Naval Ship (USNS) auxiliary support Ocean Surveillance Ships commissioned between April 1984 and October 2000. Their original purpose was to collect underwater acoustical information using the Surveillance Towed Array Sensor System (SURTASS), a towed array passive sonar.
The Ocean Survey Vessel (OSV) Bold was operated by the United States Environmental Protection Agency (EPA). Originally commissioned as the USNS Vigorous, it was renamed USNS Bold (T-AGOS-12) and was a Stalwart-class Auxiliary General Ocean Surveillance ship of the Military Sealift Command of the United States Navy, as designated by the "T" preface to her AGOS classification. Stalwart-class ships were originally designed to collect underwater acoustical data in support of Cold War anti-submarine warfare operations in the 1980s.
USNS Titan (T-AGOS-15) was a Stalwart-class modified tactical auxiliary general ocean surveillance ship in service in the United States Navy from 1989 to 1993. From 1996 to 2014, she was in commission in the National Oceanic and Atmospheric Administration (NOAA) fleet as the oceanographic research ship NOAAS Ka'imimoana.
USNS Capable (T-AGOS-16) was a Stalwart-class modified tactical auxiliary general ocean surveillance ship of the United States Navy in service from 1989 to 2004. In 2008, she was commissioned into service in the National Oceanic and Atmospheric Administration as the oceanographic research ship NOAAS Okeanos Explorer.
HMNZS Waikato (F55) was a Leander Batch 2TA frigate of the Royal New Zealand Navy (RNZN). She was one of two Leanders built for the RNZN, the other being the Batch 3 HMNZS Canterbury. These two New Zealand ships relieved British ships of the Armilla patrol during the Falklands conflict, freeing British ships for deployment.
HMNZS Tui, formerly USNS Charles H. Davis (T-AGOR-5), was one of nine Conrad class oceanographic ships built for the United States Navy (USN), that later saw service in the Royal New Zealand Navy (RNZN). Serving with the USN from 1963 to 1970, these ships were designed to perform acoustic experiments on sound transmission underwater, and for gravity, magnetism and deep-ocean floor studies.
HMNZS Otago (P148) is a Protector-class offshore patrol vessel in service with the Royal New Zealand Navy. The development of the OPV design based on an Irish Naval Service OPV class was very contentious, with the RNZN arguing for the need for a limited combat suite for effective training and patrol work with a 57 mm–76 mm light frigate gun and associated fire control, radar and electronic warfare systems at least compatible with current 2nd light RN OPVs. The government and Cabinet preference was to use the space and extra finance available to incorporate ice strengthening and provision of extra coastal patrol vessels. The RNZN view was that adding ice strengthening was unnecessary for Southern Ocean patrols, distinct from operations in the Ross Sea, and the extra weight and complexity would stress and shorten the life of the hulls from 25 to 15 years. She was launched in 2006 but suffered from problems during construction and was not commissioned until 2010, two years later than planned. Soon after commissioning Otago encountered problems with both her engines which delayed her arrival at her home port of Port Chalmers. She has served on several lengthy patrols of the Antarctic, though she lacks the capability to operate in heavier levels of ice-coverage which has led to the cancellation of at least one planned operation.
USNS Able (T-AGOS-20) is a Victorious-class oceanographic survey ship in the service of the United States Navy's Military Sealift Command.
HMNZS Pukaki is a Lake-class inshore patrol vessel inshore patrol boat of the Royal New Zealand Navy. Pukaki was launched in Whangarei Harbour on 6 May 2008. Its primary duties included border and fisheries protection patrols, surveillance, boarding operations and search and rescue response.
HMNZS Taupo was a Lake-class patrol vessel of the Royal New Zealand Navy. Taupo was commissioned in 1975 and decommissioned in 1991, serving for 16 years.
HMNZS Manawanui (A09) was commissioned in 1988 as a diving support vessel for the Royal New Zealand Navy. Originally she was built as a diving support vessel, the Star Perseus, for North Sea oil rig operations.
HMNZS Endeavour (A11) was a fleet oiler for the Royal New Zealand Navy. She was named after James Cook's Bark Endeavour and the third ship in the RNZN to carry that name, though if continuity with the Royal Navy ships of the name HMS Endeavour is considered, she is the twelfth. The previous two ships of the RNZN were Antarctic research support vessels. Endeavour was built in South Korea to a commercial design and commissioned on 8 April 1988, and decommissioned on 15 December 2017.
HMNZS Canterbury (F421) was one of two broad beam Leander-class frigates operated by the Royal New Zealand Navy (RNZN) from 1971 to 2005. She was built in Scotland and launched in 1970. Commissioned in 1971, Canterbury saw operational service in much of Australasia and other regions like the Persian Gulf. She undertook operations such as supporting UN sanctions against Iraq and peace-keeping in East Timor. With her sister ship HMNZS Waikato she relieved the Royal Navy frigate HMS Amazon in the Indian Ocean during the Falklands War. Early in HMNZS Canterbury's career, in 1973, she relieved the frigate HMNZS Otago, as part of a unique, Anzac, naval operation or exercise at Moruroa during anti-nuclear protests, supported by a large RAN tanker, providing fuel and a large platform for Australian media. This was due to F 421 being a more modern RNZN frigate, with then current Rn surveillance radar and ESM and a more effectively insulated frigate from nuclear fallout, with the Improved Broad Beam Leander steam plant, for example, being remote controlled and capable of unmanned operation and therefore the ship provided a more effective sealed citadel for operations in areas of nuclear explosions.
HMNZS Monowai (A06) was a hydrographic survey vessel of the Royal New Zealand Navy (RNZN). Built in 1960, the ship was originally used as a civilian supply and passenger vessel by the New Zealand Government, under the name GMV Moana Roa, before being acquired by the RNZN in 1974. She was commissioned into the RNZN in 1975 for the voyage to Scotland for conversion and commissioned into the RNZN in October 1977. She remained in RNZN service until April 1998, performing various duties such as coastal surveying, resupply, and surveillance. After being decommissioned she was sold to civilian operators in Britain in 1998 for conversion to a cruise ship, but was found unsuitable for the role and eventually sent to Spanish shipbreakers in 2002.
The Torpedo Bay Navy Museum is the official museum of the Royal New Zealand Navy. It opened in 2010, to replace an earlier naval museum. The museum is in Devonport, Auckland.
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.
HMNZS Hinau was one of three composite New Zealand-built Castle-class trawlers commissioned by the Royal New Zealand Navy during World War II.
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