HMS Upholder (P37)

HMS Upholder (P37)

HMS "Upholder" (P37) was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness. She was laid down on 30 October 1939, launched on 8 July 1940 by Mrs. Doris Thompson, wife of a director of the builders. The submarine was commissioned on 31 October 1940. She was one of four U-class submarines which had two external torpedo tubes at the bows in addition to the 4 internal ones fitted to all boats. They were excluded from the other boats because they interfered with depth-keeping at periscope depth.

Career

She was commanded for her entire career by lieutenant-commander Malcolm David Wanklyn, and became the most successful British submarine of the Second World War. After a working up period, she left for Malta on 10 December 1940 and was attached to the 10th Submarine Flotilla based there. She completed 24 patrols, sinking around 120,000 tons of enemy shipping including the destroyer "Libeccio" after the Battle of the Duisburg Convoy, a cruiser, three U-boats (among which the Italian submarine "Saint Bon"), three troop transports, ten cargo ships, two tankers and a trawler. Wanklyn was awarded the Victoria Cross for a patrol in her in 1941 when he attacked a particularly well defended convoy and sank the 18,000 ton Italian liner "SS Conte Rosso". She also damaged the Italian cruiser "Giuseppe Garibaldi".

inking

"Upholder" was lost with all hands on her 25th patrol, which was to have been her last before she returned to England. She left for patrol on 6 April 1942 and became overdue on 14 April. On 12 April she was ordered, with HMS "Urge" and HMS "Thrasher" to form a patrol line to intercept a convoy, although it is not known whether she received the signal. [ [http://www.rnsubmus.co.uk/general/losses.htm#upholder Royal Navy Submarine Museum] ] The most likely explanation for her loss is that she fell victim to depth charges dropped by the Italian Orsa class torpedo boat "Pegaso" North East of Tripoli on 14 April 1942 although no debris was seen on the surface. The attack was 100 miles away from Wanklyn's patrol area and he may have changed position to find more targets. It is also possible that the submarine was sunk by a mine on 11 April 1942 near Tripoli, when a submarine was reported close to a minefield. [ [http://uboat.net/allies/warships/ship/3535.html HMS "Upholder" at uboat.net] ]

References

*"Submarines, War Beneath The Waves, From 1776 To The Present Day", by Robert Hutchinson
*Colledge


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