HMNZS Canterbury (F421)

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For other ships with the same name, see HMNZS Canterbury.
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History
New Zealand
Name: HMNZS Canterbury (F421)
Namesake: Canterbury Region
Operator: Royal New Zealand Navy
Builder: Yarrow Shipbuilders
Laid down: 12 June 1969
Launched: 6 May 1970
Commissioned: 22 October 1971
Decommissioned: 21 March 2005
Homeport: Lyttelton
Fate: Scuttled 3 November 2007 as an artificial reef
General characteristics[citation needed]
Class & type: Leander-class frigate
Displacement: 2,945 tonnes full load
Length: 113.4 m (372 ft)
Beam: 13.1 m (43 ft)
Draught: 5.5 m (18 ft)
Propulsion:
  • 2 × Babcock & Wilcox boilers delivering steam to
  • 2 × English Electric geared steam turbines, 30,000 shp (22.4 MW) to 2 shafts
Speed: 28 knots (52 km/h; 32 mph)
Range: 3,000 nautical miles (5,600 km; 3,500 mi) at 15 knots (28 km/h; 17 mph)
Endurance: 30 days or 5,500 nautical miles (10,200 km; 6,300 mi) at 15 knots (28 km/h; 17 mph)
Complement: 245 + 15 officers
Sensors and
processing systems:
  • Air Search Radar: Signal LW-08 D Band: Range 265 km (165 mi) for 2 m2 (22 sq ft) target
  • Air Surface Search Radar: Plessey Type 993 E/F Band
  • Navigation Radar: Kelvin Hughes Type 1006 I band
  • Hull Sonar: Graseby Type 750 Medium Frequency Active
  • Electronic Surveillance: Argo Phoenix intercept and Jammer, Telegon PST 1288 HVU
  • IFF system: Cossor Mk XII
  • Data System: Plessey/Marconi Nautis F with Link 11
  • Weapons Control: RCA TR-76 I Band
Armament:
Aircraft carried:

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 she relieved the frigate HMNZS Otago at Moruroa during anti-nuclear protests, in 1973, F 421 being the most effectively insulated frigate, from nuclear fallout, with the Improved Broad Beam Leander steam plant, for e.g., being remote controlled and capable of unmanned operation and therefore the ship a more effective sealed citadel for operations in areas of nuclear explosions.

Canterbury was decommissioned in 2005. In 2007 she was scuttled in the Bay of Islands to provide a dive wreck. She lies in 38 metres (125 ft) of water.[1]

Operational history

Canterbury was the RNZN's fourth Type 12 frigate. She was laid down on 12 June 1969 by Yarrow Shipbuilders and launched 11 months later on 6 May 1970. She was the last Leander-class frigate and the last steam-driven warship to serve in New Zealand. The order for the ship went ahead after some controversy and doubt generated by the then Minister of Finance, Rob Muldoon.[2] She was built at the end of the production line for Leanders to fit in with a British Government programme requiring seven more Leanders to be built for the Royal Navy, the RNZN and the Chilean Navy within 2.5 years using a modular construction.[3]

She was the first Leander-class frigate to have the wells for Limbo mortars and VDS (dipping sonar) replaced and plated over to give a larger helicopter landing area, so helicopters larger than the original Wasp could land and operate from the ship. A closed TV system was also introduced so flight deck operations could be observed and accurately controlled from the ships operation room. These innovations were refitted to most of the Royal Navy Leander fleet, including Canterbury's sisters in the NZ fleet.

In 1968 the NZ government contemplated introducing US weapons systems.[4] In line with this Mk 32 a/s torpedo tubes were fitted and a limited number of Mark 46 torpedoes were provided to supplement the older shallower diving Mk 44 torpedoes, to replace the short range Limbo mortar and to arm the Wasp helicopter. However plans for a US Edo sonar and chaff decoys and to arm the Wasp with the Anglo-French AS-12, anti small ship missiles were not introduced due to cost and for political reasons.

During her time in service, she travelled about 960,000 nautical miles (44 circumnavigations of the Earth), and was temporary home for 559 officers and 3,269 ratings.[5]

Gerald Hensley, then at the New Zealand Embassy in Washington, recalled that:

The frigate “Canterbury” on its delivery voyage sailed up the Potomac River to Washington, said to be the first foreign warship to do so since the British raid in 1814. Memories were long. A barbecue was held on the ship to promote New Zealand lamb and as I came away a man said to me, ‘What are these guys doing in this town? Last time they were here they burnt the place down’. [6]

1970s

She was sent to Moruroa Atoll in 1973 as a symbolic protest of New Zealand against French nuclear testing.[7] In November 1974, Canterbury deployed with the 5th West Coast destroyer squadron of the USN for six months,[8] the first time a RNZN frigate had operated as an integral part of a US Navy. While such joint operation was common for the RAN, it was not repeated in the 2Oth Century by the RNZN, possibly because while the deployment was approved by the Kirk/Rowling 3rd Labour Government, there was considerable official comment when the frigate returned to Devonport bearing the prominent insignia , US DESRON 5 and because integrated operations were restricted by lack of funding by the following Muldoon government for common link 10 data link communication systems and baseline HYCOR chaff defence systems,[9] and the standard for RNZN frigates was compatibility rather than commonality with, USN FF52 Frigates [10]

In April 1976, Canterbury and Australian destroyer HMAS Brisbane were assigned to escort the Australian aircraft carrier HMAS Melbourne during a five-month return trip to the United Kingdom for the Silver Jubilee Naval Review.[11]

1980s

After the invasion of the Falkland Islands in 1982, New Zealand Prime Minister Rob Muldoon offered to send the Canterbury to join the Royal Navy Falklands task force sailing south to retake the British territory, this offer was declined by the British government, possibly due to the fact the Leanders,in RN service were past their prime [12] and HMNZS Canterbury, had little updating since its completion in 1971 and in particular had, dated, slow processing radar and was not yet fitted with UK or US sourced chaff decoy systems and its crew lacked practice in using them and had little Atlantic experience operating against Soviet naval vessels which might be observing in the Sth Atlantic and only 4 Leanders, HMS Argonaut , HMS Penelope, HMS Minerva, and HMS Andromeda participated in the conflict and Bacchante, joining the task group in the last week. The British government suggested as a less-controversial alternative that Muldoon send RNZN frigates to relieve the British frigate squadron in the Persian Gulf for Falkland duties. It was a difficult deployment with long stints at sea and infrequent runs ashore in very foreign ports for the kiwi crews.[13] However they did feel closer to the Cold War action seeing significant Soviet warships and Bear surveillance aircraft.[14]

The Canterbury was built with a surplus 1960's RN 177 sonar, tuned for the Persian Gulf. The British MoD refused to fit the US Edo sonars also planned for an RAN version of the Type 21 frigate rejected by the Australian Government in 1968 [15] and the NZ Govt on cost grounds rejected the new Doppler 184M sonars fitted to the HMS Apollo, Achilles and Diomede being built alongside Canterbury in Yarrow Yard [16]

During the Armilla patrols in 1982-83, the RNZN ships were not able to fully support the RN frigates Arrow and Galatea they were patrolling with in the Indian Ocean, because PM Rob Muldoon refused to allow them to enter the Persian Gulf because of sensitivities with relations with Bahrain,[17] The Arrow and Galatea were partly equipped for the missile age with computer data links and anti missile decoy systems which fitting to RNZN frigates was delayed. Nevertheless, Canterbury and HMS Galatea were later jointly awarded the Wilkinson Sword of peace for the tour.

Canterbury was half way across the Tasman in February 1985 when relations broke down with the US Government over nuclear ship visits. She visited the US later that year while en route to Canada for the 75th Anniversary of the Royal Canadian Navy (RCN) (port visits were made to Hawaii, San Diego and S

1990s

Canterbury attended the 50th Anniversary of the Battle of Crete in May 1991. During that deployment, Canterbury became the last ship in the Royal New Zealand Navy to ever wear the distinctive white funnel stripe denoting the fact that she was the senior ship within the 11th Frigate Squadron when Captain Alasdair Clayton-Greene departed the ship in Lumut, Malaysia in April 1991. It was determined that only when a Captain commanded a frigate (as the senior office afloat) would this insignia be displayed - which never occurred again in the Royal New Zealand Navy.

In 1996, Canterbury was one of the ships tasked with enforcing the embargo against Iraq in Operation Delphic (under US Navy Control). She also was the first New Zealand Navy ship to visit China (in 1987), and has participated in a number of humanitarian and peace-keeping missions, for example to Samoa, Fiji or New Guinea.[5]

Canterbury was deployed to East Timor as part of the Australian-led INTERFET peacekeeping taskforce.[18] She conducted four patrols between 26 September to 12 December 1999. The patrols were tense, with the ship being approached by Indonesian naval vessels and Hawk jets. Her duties included escorting landing craft through territory disputed with Indonesia, being the Dili guard ship and patrolling East Timor's waters. Canterbury escorted the landing craft HMAS Tobruk when it landed a New Zealand infantry battalion in East Timor. During the deployment the ship achieved a remarkable 92% systems availability rate and had few mechanical defects, a considerable achievement for a ship of her age.[19]

2000s

In the early 2000s, it was becoming increasingly clear that the ship's technical systems were getting old, and mechanical faults were multiplying. In October 2003, a fire broke out in the auxiliary switchboard while the ship was off the Chatham Islands. The ship was saved through quick action from 2 ratings, one of who received the New Zealand Order of Merit for his actions in the smoke-filled switchboard room, but it was considered that major damage or even ship loss had been only barely avoided. The repairs cost NZ$1 million,[20] and the incident, confirmed the ships life had already been dangerously overextended due to delays on orders for replacement ships with newer multi-role vessels[5] and possibly the forlorn hope that the 8 year Type 23 RN frigate Grafton, might have been approved as a replacement, it was instead sold to Chile.

Decommissioning and fate

File:Canterbury At The Opua Quay.jpg
HMNZS Canterbury at Opua in June 2007, with the last of her equipment being taken off-board

After being decommissioned in 2005, there was talk of converting her into a floating hostel. However, during a 2004 inspection, corrosion of the ship's structure had been found to be too serious for her to stay afloat in the long term without very costly maintenance.[21] Enthusiasts at the Bay of Islands Canterbury Charitable Trust proposed the idea of scuttling her as a dive wreck at Deep Water Cove in the Bay of Islands. The New Zealand Navy ships Tui and Waikato are already lying on the ground off the Tutukaka Coast, while the Greenpeace ship Rainbow Warrior was scuttled off Matauri Bay. It is hoped that the wreck, in addition to becoming an artificial reef enhancing biodiversity, will also provide additional options for the regions diving tourism.[22] It is considered that removed scrap metal and equipment (such as ship's lockers or the propeller) will bring up to NZ$400,000 to offset the NZ$650,000 costs of cleaning up and scuttling her,[23] while the worth to the local economy could be in the millions.[5] The ship itself had been sold to the trust for a symbolic NZ$1.[24]

Her 4.5-inch Mk V/Mk 6 gun turret was removed to become part of the exhibits at a planned new navy museum in Auckland.[21]

Scuttling

It was expected that the ship would be able to be sunk late 2007, after potential contaminants and scrap materials had been stripped out, and the Department of Conservation had withdrawn its objections at the end of 2006.[22] The intention was originally to sink her on Saturday 20 October 2007 – two days before its 36th commissioning anniversary.[23] After some delays, on 3 November 2007 at 14:30 hrs[citation needed] she was eventually sunk by imported plastic explosives placed at 12 locations around the hull (totalling only 14 kg (31 lb) in weight).[25] The sinking was prepared by Norman Greenall, once Chief Petty Officer (shipwright) on Canterbury,[26] who has undertaken the scuttling of other New Zealand Navy ships (like HMNZS Wellington). Greenall has a somewhat colourful reputation in the navy as the person who has "sunk more of our navy ships than the enemy did in the whole of the Second World War"[20] – however, the actual sinking of Canterbury was performed by UK company Cadre One.[26] Canterbury now lies on the seabed in Deep Water Cove.

The frigate offered good diving, especially with the ship being mostly intact (contrary to many similar dive wrecks which have broken up) and especially when other places such as Matauri Bay were unavailable due to weather conditions.[27]

Sale to Hapu interests

The wreck was sold to Te Rawhiti Enterprises (the local Hapū) for one dollar (the same amount that the Canterbury Trust paid the New Zealand Navy) on 15 July 2008, and the Trust was wound up and dissolved on 17 November 2008.[citation needed] The local Hapu will manage and market the wreck as their own to preserve their local heritage and preserve and enhance fish stocks. Due to depletion of stocks, a ban has been placed on fishing in the area for the time being, though there is still access to the wreck.[citation needed]

References

  1. ↑ Vital measurements (from the 'canterburywreck.co.nz' website. Retrieved 3 March 2008.)
  2. ↑ The rise and fall of a young Turk - R.D Muldoon)
  3. ↑ NZPD 1968, Vol 355, Q to Hon David Thompson by Mr Whitehead, p 371
  4. ↑ NZPD 1968, Vol 355, Q Mr Harrison, p371
  5. ↑ 5.0 5.1 5.2 5.3 Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ Final Approaches: A Memoir by Gerald Hensley (2006, Auckland University Press) p.221 ISBN 1-86940-378-9
  7. ↑ New Zealand Special Service Medal (from the New Zealand Defence Force website. Retrieved 12 September 2008.)
  8. ↑ HMNZS Canterbury. Naval Museum of RNZN, Website). Torpedo Bay, Auckland. Retrieved 31 March 2016
  9. ↑ I.Bradley. 'Defending Defence Spending. NZ Listener Sept 11 1982, p39-41
  10. ↑ Rear Admiral K.M.Saull. TVNZ. TV1.Tonight, 19–20 October 1981, 20.00.,
  11. ↑ Stevens et al., Page 231.
  12. ↑ Global Security. Leander Class,
  13. ↑ HMNZS Canterbury. National Museum of NZ Navy. Torpedo Bay Naval Museum website. Auckland. 2016
  14. ↑ 'Armilla Patrol' HMNZS Canterbury 1982. RNZN Communicators. Word Press 2012. pdf & Cmdr Ian Bradley ret. Interview 5/1984
  15. ↑ N.Freidman. British Destroyers & Frigates. Chatham, (2006) London
  16. ↑ Captain Ian Bradley RNZN-ret -1983 interview- with researcher
  17. ↑ Captain Christopher Carl-RNZN ret ,(Commander of RNZN frigate, Armilla Patrol 1982-83) -'Throw me a Line', (C.Carl)
  18. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  19. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  20. ↑ 20.0 20.1 Warship headed for the deep (from the New Zealand Drivewrecks website, Wednesday 4 April 2007)
  21. ↑ 21.0 21.1 Lua error in package.lua at line 80: module 'strict' not found.
  22. ↑ 22.0 22.1 Lua error in package.lua at line 80: module 'strict' not found.
  23. ↑ 23.0 23.1 Frigate to find final resting place in October (from the New Zealand Drivewrecks website, Monday 9 April 2007)
  24. ↑ Last steam frigate sold for a dollar (from the New Zealand Drivewrecks website, Monday, 2 February 2007)
  25. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  26. ↑ 26.0 26.1 HMNZS Canterbury New Zealand's Newest Diving Attraction – CYBER DIVER News Network, 4 November 2007. Retrieved 30 June 2008.
  27. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  • Lua error in package.lua at line 80: module 'strict' not found.

External links

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