HMS Starling, pennant number U66, was a modified Black Swan-class sloop of the Royal Navy. She was active in the Battle of the Atlantic during the Second World War and was the most successful anti-submarine warfare vessel of the Royal Navy, being credited with the destruction of fourteen U-boats.
Starling was ordered on 18 July 1941 under the 1940 Supplementary War Building Programme; she was laid down by Fairfield Shipbuilding and Engineering Company at Govan, Scotland, on 21 October 1941. She was launched on 14 October 1942, and commissioned on 1 April 1943, with a build time of 17 months and 10 days.
Starling joined Western Approaches Command in April 1943 under the command of Captain Frederic John Walker, leader of the 2nd Support Group (2SG). This was a flotilla of six sloops not tied down to convoy protection, but free to hunt down U-boats wherever found. The other ships of the group were , , , , and .
Starlings first patrol in May 1943 was uneventful; There were several major convoy battles during the month, but none involving 2SG. Starlings first success came on 1 June 1943, when the group's first U-boat was detected: fortuitously on a fine day and identified by Lieutenant Earl Howe Pitt. This event was dubbed another "Glorious First of June" by Walker. Over a 15-hour period the group found, tracked and destroyed , in the longest hunt of the Atlantic campaign up to that point.
On their return to Liverpool, Starling and 2SG were assigned to "Operation Musketry", an attempt, in concert with Coastal Command, to interdict the U-boat transit routes across the Bay of Biscay. On 24 June 1943 the group was successful in destroying two U-boats; Starling destroyed , but was damaged when she rammed the U-boat to dispatch it. She was forced to return to Britain for repairs, under the temporary command of Commander D. E. G. Wemyss of Wild Goose, Walker staying with the group.
In October, on returning to the group, Starling was involved in the battle around convoy ON 207. No successes were recorded, though the convoy battle saw three U-boats destroyed, with no ships lost.
In November 1943, in operations around HX 264, Starling and 2SG accounted for two more U-boats: and .
In December, while in support of convoy SL 140/MKS 31, Starling attacked and damaged , forcing it to abandon its attack.
In January 1944, supporting convoy SL 147/MKS 38, Starling shared in the destruction of .
In February she took part in the famous "Six in one trip" episode, where 2SG destroyed six U-boats over a two-week period. Starling shared in the destruction of four of these: on 31 January, and on 9 February, and on 19 February.
In March 1944, Starling and 2SG, accompanied by the escort carrier , sought and destroyed , a U-boat on weather-reporting duty in the North Atlantic. Later that month, while supporting Murmansk convoy JW 58, Starling destroyed in transit to the North Atlantic. She had no other success, though three U-boats were destroyed in attacks on JW 58.
In May the group responded to an attack on by . Though starting from 300 miles away, Walker, in an inspired piece of work, divined where to search and after a three-day search made contact. An 18-hour hunt brought U-473 to the surface, where she was sunk by gunfire.
In June Starling was part of "Operation Neptune" in support of the Normandy landings, and was instrumental in preventing any attacks on the invasion fleet. In all, 15 U-boats were destroyed in attempts to attack the invasion fleet, though Starling herself had no success.
In July Starling suffered her heaviest blow when Capt. FJ Walker died of a cerebral haemorrhage, brought on by overwork and exhaustion.
Under her new captain, Commander N. W. Duck, Starling and 2SG had another successful patrol in the Bay of Biscay in August when four U-boats were destroyed; Starling took part in three of these actions, against , , and .
In September Starling moved to 22EG, under Commander G. W. E. Castens, but the U-boat war had changed character, and Starling saw little further success. The campaign became a hunt for single raiders operating in the shallow coastal waters, where a U-boat could hide among the wrecks on the sea bottom. Hunts for these "lone wolves" was a slow and tedious business, though merchant ship losses were kept to a minimum.
In January 1945 Starling, with ships of 22EG, attacked a promising target in the North Channel. They were credited, following examination of German records in the post-war period, with the destruction of . However this assessment was re-evaluated in 1991, and the credit was withdrawn; the attack was deemed to have been on a non-submarine target.
With the end of the war in Europe Starling was earmarked for duty in the Pacific, but while re-fitting for this, the war there ended. In September 1945, Starling paid off, and in October went into reserve.
In 1946, Starling was re-activated for service with , the Royal Navy's Navigation Training School. She was modified as a navigation training ship and remained in service for the next ten years.
In 1953, she took part in the Fleet Review to celebrate the Coronation of Queen Elizabeth II.
In 1956, her last year in commission, she visited the Norwegian fjords and the U-boat base at Kiel. Her final voyage was a call at Bootle, Liverpool, to attend a farewell celebration provided by the local authorities, and Captain Walker's widow took passage on the final sailing from Bootle to Portsmouth, where Starling paid off.
Starling participated in the sinking of fourteen U-boats:
During the war the Starling was credited, along with the sloops , , , and frigate , with sinking the in the North Channel on 16 January 1945. The British Admiralty withdrew this credit in a post-war reassessment.
Burn, Alan (1993). The Fighting Captain. .