HMS Trenchant was a Trafalgar-class nuclear-powered fleet submarine of the Royal Navy built by Vickers Shipbuilding, Barrow-in-Furness. Trenchant was based at HMNB Devonport. She was the third vessel and the second submarine of the Royal Navy to be named for the characteristic of vigour and incisiveness.
HMS A1 was the Royal Navy's first British-designed submarine, and their first to suffer fatal casualties.
HMS A7 was an A-class submarine built for the Royal Navy in the first decade of the 20th century. She sank in a training accident in 1914 with the loss of her entire crew. Efforts to salvage her failed and her wreck is a protected site. Diving on her is prohibited without a licence from the Ministry of Defence.
HMS Thetis (N25) was a Group 1 T-class submarine of the Royal Navy which sank during sea trials in Liverpool Bay, England on 1 June 1939. After being salvaged and repaired, the boat was recommissioned as HMS Thunderbolt in 1940. It served during the Second World War until being lost with all hands in the Mediterranean on 14 March 1943.
HMT Warwick Deeping (H136) was a naval trawler of the British Royal Naval Patrol Service during World War II, sunk off the Isle of Wight in October 1940.
The year 1994 in archaeology involved some significant events.
HMS Swordfish (61S) was a first-batch S-class submarine built for the Royal Navy during the 1930s. Commissioned in 1932, she was given the pennant number 61S and was assigned to the 2nd Submarine Flotilla.
The British U-class submarines were a class of 49 small submarines built just before and during the Second World War. The class is sometimes known as the Undine class, after the first submarine built. A further development was the British V-class submarine of 1942.
Royal Navy Air Station Rattray or RNAS Rattray and also known as Crimond Airfield, Crimond Aerodrome or Rattray Aerodrome was a Royal Naval Air Station near Crimond, Aberdeenshire.
HMS Umpire (N82) was a Royal Navy U-class submarine built at Chatham Dockyard and sunk in an accident nine days after commissioning in July 1941 with the loss of 22 men. The submarine was sunk while en route from Chatham to join the 3rd Submarine Flotilla at Dunoon, under the command of Lieutenant Mervyn Wingfield. From Dunoon she was to carry out a single working-up patrol in the North Sea before heading to the Mediterranean. She stopped overnight at Sheerness and joined a convoy headed North. The submarine suffered engine failure with one of the two diesel engines and as a result fell behind the convoy; the propellers were driven purely by electric motors on the surface and when submerged with no mechanical linkage to the diesel engines. The convoy passed a Southbound convoy around midnight while about 12 nautical miles (22 km) off Blakeney, Norfolk, with the two convoys passing starboard to starboard; this was unusual since ships and convoys should pass port to port. No ships showed any lights because of the risk from German E-boats. However, an armed escort trawler, Peter Hendriks in the southbound convoy accidentally struck Umpire sinking her in 18 metres of water.
SM UB-65 was a Type UB III U-boat of the Imperial German Navy during World War I. Ordered on 20 May 1916, the U-boat was built at the Vulkan Werke shipyard in Hamburg, launched on 26 June 1917, and commissioned on 18 August 1917, under the command of Kapitänleutnant Martin Schelle.
The second HMS Tarpon (N17) was a T-class submarine of the Royal Navy. She was laid down by Scotts, Greenock and launched in October 1939. She is named after the large fish Tarpon; one species of which is native to the Atlantic, and the other to the Indo-Pacific Oceans.
HMS Urge was a British U-class submarine, of the second group of that class, built by Vickers Armstrong, Barrow-in-Furness. She was laid down on 30 October 1939, and was commissioned on 12 December 1940. From 1941–1942 she formed part of the 10th Submarine Flotilla based in Malta and spent most of her career operating in the Mediterranean, where she damaged and sank enemy warships and merchant vessels and undertook both SBS and SIS special operations. She was commanded by Lieutenant-Commander Edward Philip Tomkinson, DSO, RN. She was lost with all hands and a number of naval passengers on 27 April 1942 after striking a German mine off Malta.
HMS Ariel was an Acheron-class destroyer built in 1911, which served during the First World War and sank in 1918 after striking a mine. Named after Shakespeare's "airy spirit", or the biblical spirit of the same name, she was the tenth and last ship of the name to serve in the Royal Navy.
HMS Attack was an Acheron-class destroyer built in 1911, which served during the First World War and was sunk in 1917 in the Mediterranean by a German U-boat. She was the third ship of the name to serve in the Royal Navy.
HM Trawler Agate was purchased by the Royal Navy in 1935. She was modified from a trawler to be used to carry out anti-submarine work. In 1941 she was with the maintenance reserve at Rosyth, but in August was part of the Royal Navy's escort flotilla with convoy FS559 when she ran aground, becoming a total loss, on Haisborough Sands on 6 August with a loss of sixteen crewmen.
HMS M2 was a Royal Navy submarine monitor completed in 1919, converted in 1927 into a submarine aircraft carrier. She was wrecked in Lyme Bay, Dorset, Britain, on 26 January 1932. She was one of three M-class boats completed.
Events from the year 1943 in Scotland.
The fishing vessel Antares was a pelagic trawler based in Carradale, Kintyre in the United Kingdom. It was fishing off the coast of the Isle of Arran on 22 November 1990 when it foundered with the loss of four crew members after its trawl line was snagged by Royal Navy Trafalgar class nuclear powered submarine HMS Trenchant. An investigation by the Marine Accident Investigation Branch concluded that the accident had been caused by "a partial breakdown in both the structure and the standards of watchkeeping on board Trenchant".
Phénix was a French Navy Redoutable-class submarine of the M6 series commissioned in 1932. She sank in a diving accident with the loss of all hands in June 1939.
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