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The Battle of May Island is the name given to the series of accidents that occurred during Operation E.C.1 in 1918. Named after the Isle of May, an island in the Firth of Forth, close by, it was a disastrous series of accidents amongst Royal Navy ships on their way from Rosyth in Scotland to fleet exercises in the North Sea. On the misty night of 31 January to 1 February 1918, five collisions occurred between eight vessels. Two submarines were lost and three other submarines and a light cruiser were damaged. 104 men died, all of the Royal Navy.〔Royal Navy Submarine Museum〕 Although it took place during the First World War it was an entirely accidental tragedy and no enemy forces were present. It was therefore not a ''Battle'' and was only referred to as such with black humour. The subsequent investigation and court martial were kept quiet, with much of the information not released until the 1990s. In 2011, surveyors conducting a detailed preparatory survey of the sea floor for the Neart Na Gaoithe offshore wind farm, published sonar images of the wrecks of the two submarines, K-4 and K-17 sunk during the accident. ==Events== Around 40 naval vessels left Rosyth on the Firth of Forth, Scotland on the afternoon bound for Scapa Flow in Orkney where the exercise, EC1, involving the entire Grand Fleet would take place the following day. The vessels included the 5th Battle Squadron of three battleships with their destroyer escorts, the 2nd Battlecruiser Squadron of four battlecruisers and their destroyers, two cruisers and two flotillas of K-class submarines each led by a light cruiser. The ''K'' class submarines were specially designed to operate with a battle fleet. They were large boats for their time, at long and were powered by steam turbines to allow them to travel at 24 knots on the surface, to keep up with the fleet. The two flotillas were the 12th Submarine Flotilla, consisting of HMS ''K3'', ''K4'', ''K6'' and ''K7'' led by HMS ''Fearless'' and the 13th Submarine Flotilla, led by HMS ''Ithuriel'' composed of ''K11'', ''K12'', ''K14'', ''K17'' and ''K22''. At 18:30 the vessels weighed anchor and the entire fleet steamed in a single line nearly long. At the head of the line were the two cruisers ''Courageous'' and ''Ithuriel'' followed by the rest of the 13th Submarine Flotilla. These were followed by the battlecruiser squadron, HMAS ''Australia'', HMS ''New Zealand'', ''Indomitable'' and ''Inflexible'' with their destroyers. After these came the 12th Submarine Flotilla and finally the battleships. To avoid attracting German U-boats, particularly as one was suspected to be in the area, after dark each vessel showed only a dim stern light to the following vessel and they all maintained radio silence. As each group passed the Isle of May at the mouth of the firth, they altered course and increased speed to 20 knots. As the 13th Submarine Flotilla passed the island, a pair of lights (possibly minesweeping naval trawlers) were seen approaching the line of submarines. The flotilla altered course sharply to port to avoid them but ''K14s helm jammed and she veered out of line. Both ''K14'' and the boat behind her, ''K12'' turned on their navigation lights and eventually ''K14''s helm was freed and she tried to return to her position in the line. The next submarine in line, ''K22'' had lost sight of the rest of the flotilla in the mist and veered off the line with the result that she hit ''K14''. Both submarines stopped whilst the rest of the flotilla, unaware of what had happened continued out to sea. ''K22'' radioed in code to the cruiser leading the flotilla to say that she could reach port but that ''K14'' was crippled and sinking. About fifteen minutes later, the 2nd Battlecruiser Squadron passed the island and the two submarines, but the battlecruiser ''Inflexible'' hit ''K22'' causing further damage. The battlecruiser bent the first of ''K22s bows at right angles and wrecked the ballast and fuel tanks. She settled by the bow until only the conning tower showed. Meanwhile, Leir, captain of ''Ithuriel'', had received and decoded the message about the first collision between the two submarines and turned back to help them. As the submarines behind her turned to follow her, the 2nd Battle Squadron passed through the line and it was only through emergency turns by both groups of vessels that further accidents were narrowly avoided. As the 13th Flotilla reached the Isle of May, they encountered the outbound 12th Submarine Flotilla. The leader of the 12th Flotilla, ''Fearless'' loomed out of the mist and collided with ''K17'' which sank within a few minutes, although most of her crew were able to jump overboard. As the submarines following ''Fearless'' turned to avoid their now stationary flotilla leader, the battlecruiser ''Australia'' narrowly missed ''K12'' which turned to get out of the way, putting her on a collision path with ''K6''. ''K6'' tried to avoid her but in doing so hit ''K4'', nearly cutting the latter in half. The seriously damaged ''K4'' sank with all of her crew, during which she was hit by ''K7''. At this point the 5th Battle Squadron of three battleships and their destroyers passed through the area unaware of what had happened, some of the destroyers cutting down the survivors of ''K17'' struggling in the water. Only nine of the 56 men originally on board the submarine survived and one of these died of his injuries shortly afterwards. Within 75 minutes, the submarines ''K17'' and ''K4'' had been sunk, and ''K6'', ''K7'', ''K14'', ''K22'' and ''Fearless'' had been damaged. The casualty numbers for the "Battle of May Island" were 104. This includes men from K4 with 55 dead, K17 with 47 dead, and 2 dead from K14. The accident was kept secret during the war, and a memorial cairn was finally erected 84 years later, on 31 January 2002 at Anstruther harbour opposite the Isle of May. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Battle of May Island」の詳細全文を読む スポンサード リンク
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