HMNZS Pukaki, a Loch-class anti-submarine frigate served in the North Atlantic as escorts for inbound convoys to Britain. She also saw service in Korea, the Far East Station, Operation GRAPPLE and Antarctica.
Type: Loch-class anti-submarine frigate
Completed: August 1944 – commissioned as HMS Loch Achanalt
Dimensions: 307.3 (94m) x 286 (86m) x 38.6 (12m) x 14.2ft (4m)
Displacement: 2260 tonnes
Machinery: Two Admiralty-type 3-drum boilers, Vertical reciprocating 4-cylinder triple expansion – two shafts IHP: 5500 = 19.5 knots
Armament: 1 x 4-inch (102mm) gun, 4 x 40mm Bofors single mounts, quad pom-pom mounting, Squid anti-submarine mortars, depth charges, 4 x 3-pdr Hotchkiss.
Complement: 114 Officers and ratings
RNZN Service Commissioned: 13September 1948, Paid off 24 May 1965
Pennant Number: F424
Builder: Henry Robb, Leith Scotland
Keel Laid: 14 September 1943
Decommissioning: Paid off 24 May 1965, Sold September 1965. Left under tow from Auckland on 15 November 1965 by the tug Atlas along her sister ship Hawea. The ships arrived in Hong Kong for breaking up in January 1966 by Hong Kong Roller Mills.
Battle Honours: Korea 1950
Motto: Kua Pukekotia (To become experienced, knowing)
The design of the badge of the Loch Class Frigate, HMNZS Pukaki, was submitted by the ship and features the native swamp hen. Although known as the ‘Pukeko’ in most parts of New Zealand, this bird is known in parts of the South Island as ‘Pukaki’. Lake Pukaki lies in the shadow of Mount Cook, the highest mountain in New Zealand, also features in the badge, represented by the chevron behind the bird.
A later vessel, a Lake Class Patrol Craft also used the badge and motto as well as the new Lake-class Inshore Patrol Vessels that entered service in 2009.
After the official announcement of the name of the ship there was some consternation expressed as the actual meaning of ‘Pukaki’. This varied from a view that it is merely a corruption of the word ‘Pukeko’ to an alternative translation; “pain in the neck”. The Naval staff were adamant, however, quoting Wise New Zealand Index which gives the translation as “Source of stream”.
The Pukeko’s reputation for sagacity has been crystallized in the ship’s motto. Final approval for this badge was given in February 1951
Pukaki: The river’s source – A lake in the central South Island.
Pukeko: The Maori name for the native swamp hen ‘Porphyrio melanotus’
All six of the Loch-class frigates served in the North Atlantic as escorts for inbound convoys to Britain. HMS Loch Achanalt was refitted at Sheerness where it was brought out of reserve, modernised and new armament fitted. They were also prepared to RNZN requirements. The ship’s company came from the corvettes HMNZS Arbutus and Arabis which had been returned to the Royal Navy. The RNZN also recruited in Britain. In August 1948 the six frigates were designate the 11th Frigate Flotilla with the Senior Officer in HMNZS Taupo. Leaving Britain on 15 October 1948 four of the six ships arrived in Auckland 5 January 1949. Initially the frigate was to be named Manapouri. On arrival the four frigates the NZ squadron was reconstituted and the Senior Officer was on HMNZS Bellona.
Korean Service: With the outbreak of the Korean War, NZ pledged two frigates to support the UN naval forces. Pukaki left NZ on 3 July 1950 and returned in December. This was her only deployment and was the shortest of all the frigates. At this time the ships were on escort and blockade duties on the western coast of Korea as the UN tried to stabilise the situation on land. Pukaki was paid off into reserve on 22 December 1950
Far East Station: On 19 August 1953 Pukaki was recommissioned and was the first ship to operate as part of the Far East Station. She left for Hong Kong in September 1953. Ships would operate from Singapore, Hong Kong as well as monitor the Korean armistice. Pukaki had four 12-month deployments 1953-1954, 1955-1956, 1959-1960, and 1961-1962. Prior to the last deployment Pukaki was recommissioned after an extended refit in April 1961. When she returned to Auckland in June 1962 that ended the participation of the Loch-class frigates in the Far East Station.
Operation GRAPPLE: Grapple was the thermonuclear testing programme carried out by the British at Malden and Christmas Islands in the Pacific. Pukaki was deployed as a weather ship at all nine tests from May 1957 to September 1958.
Antarctic: In December 1956 Pukaki and HMNZS Hawea escorted HMNZS Endeavour (I) from Bluff to the edge of the pack ice. In she was modified to operate as a weather picket ship located at 60 degrees south 170 degrees east, some 1448km south of Bluff. She would be based here during the summer season. She also served as an emergency standby by American aircraft flying from Christchurch to Antarctica. She did five patrols and the last one ending on 23 February 1965.