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Isles Class – history and their story – photos

The Isles-class trawlers were a class of naval trawler used by the Royal Navy, Royal Canadian Navy and Royal New Zealand Navy during World War II.

Isles Class – history and their story – photos

Guns crew training off of the NZ coast

HMNZS Inchkeith off of Cape Rodney with Barrier in background – 1942

HMNZS Inchkeith with HMNZS Killegray following, entering Whangarei – 1942

Isles Class Minesweepers at Russell – 1942

Passing Sugar Loaf and Poor Knights – 1942 – Minesweepers Auckland to Russell

Auckland to Russell – Rangitoto Channel

A flotilla of Isles Class minesweepers in Queen Charlotte Sound – 1942

Streaming the kite in Queen Charlotte Sound – 1942

4 inch gun and crew – Queen Charlotte Sound 1942

Manning an anti-aircraft gun during anti-gas exercises in Queen Charlotte sound during a night operation – 1942

Photos from NZ Herald

Inchkeith was one of the first warships to be commissioned into the Royal New Zealand Navy after the awarding of the title that was effective 1 October 1941. From October 1942 to June 1943 Inchkeith and her sister ships were employed on anti-submarine patrols while supply ships were discharging at Norfolk Island.

Ship Details:[1]

Class: Isles-class minesweeper

Pennant Number: T155

Builders: John Lewis & Sons Aberdeen

Laid Down: 6 November 1940

Launched: 10 July 1941

Completed: 24 October 1941

Dimensions: 50 x 45.7 x 8.4 x 4.1m (164 x 150 x 27.6 x 13.5ft)

Displacement: 782 tonnes full load

Machinery: 1-shaft recip. Triple expansion, coal fired, ihp 850 = 10/8.5 kts

Armament:

1 x 12pdr gun single mounted, 3 x 20mm single mounted,

2 machineguns, ASDIC, 30 Depth charges

Complement:  40

RNZN Service: Commissioned 17/10/1941 Decommissioned 12/2/1946

History:[2]

Inchkeith was one of the first warships to be commissioned into the Royal New Zealand Navy after the awarding of the title that was effective 1 October 1941. It was named after the Scottish island in the Firth of Forth.

The Isles-class minesweepers were a group of vessels based on the Admiralty designed Anti-submarine and Minesweeping trawler HMS Bassett that was commissioned in 1935.  Other groups of similar design include the Tree-class minesweepers in which many New Zealand RNZNVR officers served in during the Second World War.  The Isles-class purpose was for training rather than active operations. In April 1941, the Admiralty offered four Isles-class vessels to the New Zealand government which accepted it in July as part of the recommendations that there by nineteen vessels for minesweeping and anti-submarines duties in New Zealand’s home waters.[3] The government paid £65,000 each for the four vessels that were commissioned as Inchkeith, Sanda, Killegray, and Scarba.[4]

Inchkeith was completed in October 1941 and commissioned into service with the RNZN under the command of Lieutenant-Commander H.A. Dunnet RNR a New Zealander who would serve as her commanding officer until 1943.[5] The majority of the ship’s companies were New Zealanders. The initial workup of the four vessels was carried out in Scottish waters and the vessel conducted escort work around the coast.  On 15 March 1942 Inchkeith collided with an ocean boarding vessel HMS Marsdale, damaging some of her superstructure. In fact the Isles-class ships in RNZN service seem to have had a reputation for accidents and collisions.  

On 15 March 1942, Inchkeith, the other three vessels and the Bird-class corvette HMNZS Tui left Greenock and joined a Canada-bound convoy [ONS76] as escorts. From Canada the ships sailed down the eastern coast of the United States and arrived at Bermuda were Inchkeith and Killegray was repaired during a 12-day stay.[6] After spending four days in Jamaica, the fleet passed through the Panama Canal and arrived at the USN naval base at San Pedro, California on 25 May 1942. There the fleet acted as an anti-submarine escort a USN fleet of ten tankers to Pearl Harbour arriving on 22 June 1942.[7] The ships departed on 6 July, less HMZNS Killegray which had boiler trouble, and arrived in Suva on 24 July.

On the leg from Suva to Auckland, HMNZS Sanda ran out of coal which was poor quality and Inchkeith took her under tow from 1 August and then handed over to HMNZS Muritai two days later. Inchkeith arrived at Devonport Naval Base [HMNZS Philomel] on 4 August 1942.  She underwent a refit and was deployed for minesweeping duties from September 1942 with the 7th Trawler Group. The area of operations for the group included the Hauraki Gulf and the Bay of Islands. In 1944 the group consisted of the four Isles-class trawlers.[8]

Occasionally there were escorts for merchant ships sailing to Norfolk Island. In October 1942 Inchkeith was the anti-submarine escort protection to the steamer Waipori that took supplies for the garrison on the island that was being developed as a base for anti-submarine operations.  From October 1942 to June 1943 Inchkeith and her sister ships were employed on anti-submarine patrols while supply ships were discharging at Norfolk Island.[9]

This work continued for the duration of the war. In January 1945, perhaps returning the favour, HMNZS Sanda took fourteen hours to tow Inchkeith from Whangaparapara Harbour, Great Barrier Island back to HMNZS Philomel.  From March to October 1945 the 7th Trawler Group undertook clear-sweeping of the Hauraki Gulf minefields. Even though after five years it was thought probable that the mines would have being lost or sunk. However, it was essential that the approaches to the Waitemata Harbour and Hauraki Gulf be totally free of mines. By May 1945, no mines had been swept.  When detailed information was received from the Admiralty where the mines laid by the German raider Orion in 1940, a further sweep was undertaken but no mines were located. In October 1945, shortages of coal forced the ships into lay-up until February 1946 when the corvettes HMNZS Arabis and Arbutus were fitted out as minesweepers and four Isles-class ships including Inchkeith were paid off to reserve.[10]

Inchkeith remained in reserve at the dockyard until the RNZN declared it surplus in 1957. All four Isles-class ships were sold en bloc to G A Sparrey in August 1958 for scrapping.  The ships were broken up at the Lighter Basin in Freemans Bay, Auckland in 1959.

[1] R.J. McDougall, New Zealand Naval Vessels, Christchurch: GP Books, 1989, p. 61.

[2] Ibid., pp. 61-62.

[3] S.D. Waters, The Royal New Zealand Navy: Official History of New Zealand in the Second World War 1939-45, Wellington: War History Branch Department of Internal Affairs, 1956, p. 200.

[4] Ibid., p. 203.

[5] Ibid.

[6] Ibid., p. 204.

[7] Ibid.

[8] Ibid., p. 273.

[9] Ibid., p. 267.

[10] Ibid., p. 276.

HMNZS Scarba

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HMNZS Scarba
7 February 1944, five Fairmile ‘B’ Class patrol craft ML 401-404 and 406 departed Auckland for the Solomon Islands. They travelled via Whangaroa Harbour (to top up fuel), Norfolk Island, Noumea, Espiritu Santo before reaching their destination at Renard Sound in the Russell Islands.
The first group of four Fairmiles had already departed in January. The Fairmiles were organised into two six-craft flotillas the 80th ML (Motor Launch) and 81st ML under the operational control of the US Navy. The launches were used for anti-submarine patrols off Guadacanal, Tulagi and the Russell Islands. Additional duties included escorting vessels.
The minesweeper HMNZS Scarba (background) escorted the Fairmiles as far as Noumea.
HMNZS Scarba – Lt CDR Finch and Lt Blair and Tabs the Cat

HMNZS Killegray (T174)

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HMNZS Killegray (T174)
a black and white photo of HMNZS Killegray clearing sea mines in the Bay of Islands.
“There’s something quite confronting about this picture which captures these deadly mines bobbing in the water, with the Bay of Islands’ distinctive Ninepin Rock, or Tikitiki, on the horizon,” says Heritage New Zealand’s Northland manager, Bill Edwards.
“It’s a seascape loved by thousands of visitors – and yet here we see a bunch of mines floating in the water where many of us enjoy recreational water activities today.
”It’s a stark reminder that Northland was a fortress on high alert against attack after the bombing of Pearl Harbour.”
The photo was taken by Tudor Collins, who served as a petty officer in the Royal New Zealand Navy during the war.
HMNZS Killegray (T174)
The Isles class naval trawlers were 164-foot (50 m) long, displaced 740 tons full load, and could manage 12 knots (22 km/h). They had a complement of 40 and were armed with one 12-pdr gun, three 20 mm Oerlikons (3×1) and depth charges.

HMNZS Inchkeith (T155)

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Inchkeith was one of the first warships to be commissioned into the Royal New Zealand Navy after the awarding of the title that was effective 1 October 1941. From October 1942 to June 1943 Inchkeith and her sister ships were employed on anti-submarine patrols while supply ships were discharging at Norfolk Island.

HMNZS Inchkeith followed by HMNZS Killigray and HMNZS Scarba entering Whangarei 1942 – Image Tudor Collins -Torpedo Bay Museum

Inchkeith was one of the first warships to be commissioned into the Royal New Zealand Navy after the awarding of the title that was effective 1 October 1941. It was named after the Scottish island in the Firth of Forth.

The Isles-class minesweepers were a group of vessels based on the Admiralty designed Anti-submarine and Minesweeping trawler HMS Bassett that was commissioned in 1935. Other groups of similar design include the Tree-class minesweepers in which many New Zealand RNZNVR officers served in during the Second World War. The Isles-class purpose was for training rather than active operations. In April 1941, the Admiralty offered four Isles-class vessels to the New Zealand government which accepted it in July as part of the recommendations that thereby nineteen vessels for minesweeping and anti-submarine duties in New Zealand’s home waters.[3] The government paid £65,000 each for the four vessels that were commissioned as Inchkeith, Sanda, Killegray, and Scarba.[4]

Inchkeith was completed in October 1941 and commissioned into service with the RNZN under the command of Lieutenant-Commander H.A. Dunnet RNR a New Zealander who would serve as her commanding officer until 1943.[5] The majority of the ship’s companies were New Zealanders. The initial workup of the four vessels was carried out in Scottish waters and the vessel conducted escort work around the coast. On 15 March 1942 Inchkeith collided with an ocean boarding vessel HMS Marsdale, damaging some of her superstructures. The Isles-class ships in RNZN service seem to have had a reputation for accidents and collisions.

On 15 March 1942, Inchkeith, the other three vessels and the Bird-class corvette HMNZS Tui left Greenock and joined a Canada-bound convoy [ONS76] as escorts. From Canada, the ships sailed down the eastern coast of the United States and arrived at Bermuda were Inchkeith and Killegray was repaired during a 12-day stay.[6] After spending four days in Jamaica, the fleet passed through the Panama Canal and arrived at the USN naval base at San Pedro, California on 25 May 1942. There the fleet acted as an anti-submarine escort a USN fleet of ten tankers to Pearl Harbour arriving on 22 June 1942.[7] The ships departed on 6 July, less HMZNS Killegray which had boiler trouble, and arrived in Suva on 24 July.

On the leg from Suva to Auckland, HMNZS Sanda ran out of coal which was poor quality and Inchkeith took her under tow from 1 August and then handed over to HMNZS Muritai two days later. Inchkeith arrived at Devonport Naval Base [HMNZS Philomel] on 4 August 1942. She underwent a refit and was deployed for minesweeping duties from September 1942 with the 7th Trawler Group. The area of operations for the group included the Hauraki Gulf and the Bay of Islands. In 1944 the group consisted of the four Isles-class trawlers.[8]

Occasionally there were escorts for merchant ships sailing to Norfolk Island. In October 1942 Inchkeith was the anti-submarine escort protection to the steamer Waipori that took supplies for the garrison on the island that was being developed as a base for anti-submarine operations. From October 1942 to June 1943 Inchkeith and her sister ships were employed on anti-submarine patrols while supply ships were discharging at Norfolk Island.[9]

This work continued for the duration of the war. In January 1945, perhaps returning the favour, HMNZS Sanda took fourteen hours to tow Inchkeith from Whangaparapara Harbour, Great Barrier Island back to HMNZS Philomel. From March to October 1945, the 7th Trawler Group undertook clear-sweeping of the Hauraki Gulf minefields. Even though after five years it was thought probable that the mines would have been lost or sunk. However, the approaches to the Waitemata Harbour and Hauraki Gulf needed to be free of mines. By May 1945, no mines had been swept. When detailed information was received from the Admiralty where the mines laid by the German raider Orion in 1940, a further sweep was undertaken but no mines were located. In October 1945, shortages of coal forced the ships into lay-up until February 1946 when the corvettes HMNZS Arabis and Arbutus were fitted out as minesweepers and four Isles-class ships including Inchkeith were paid off to reserve.[10]

Inchkeith remained in reserve at the dockyard until the RNZN declared it surplus in 1957. All four Isles-class ships were sold en bloc to G A Sparrey in August 1958 for scrapping. The ships were broken up at the Lighter Basin in Freemans Bay, Auckland in 1959.

HMNZS Inchkieth

HMNZS Sanda (T160)

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The Isles-class naval trawlers were 164 feet (50.0 m) long, displaced 740 tons full load, and could manage 12 knots (22 km/h). They had a complement of 40 and were armed with one 12-pounder gun, three 20 mm Oerlikons in single mounts and depth charges.

HMNZS Sanda (T 160)
MS Trawler of the Isles class
Navy The Royal New Zealand Navy
Type MS Trawler
Class Isles
Pennant T 160
Built by Goole Shipbuilding & Repairing Co. Ltd. (Goole, U.K.) : Amos & Smith
Ordered 22 Jul 1940
Laid down 23 Dec 1940
Launched 12 Jul 1941
Commissioned 4 Nov 1941
End service
History Sold in 1958.
Commands listed for HMNZS Sanda (T 160)
Please note that we’re still working on this section.
Commander From To
1 Lt.Cdr. (retired) Norman Leggatt Mackie, RNR 30 Oct 1941 9 Nov 1944
2 Lt.Cdr. Henry Alfred Dunnet, RNR 9 Nov 1944
https://uboat.net/allies/warships/ship/13524.html


The ship was named after an island near the Mull of Kintyre. Sanda was commissioned into service with the RNZN on 30 October 1941. On 31 December 1943, Sanda along with her sister ships were deployed to sweep the independent minefield in the Bay of Islands.

HMNZS Sanda

By the end of February 1944, 249 mines had been swept and destroyed from the field of 258 mines laid in October 1942.

HMNZS SANDA – breakers yard