Battle of May Island

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Operation E.C.1, usually called by the sardonic name of the Battle of May Island, or sometimes the geographically correct Battle of the Isle of May, was a disastrous series of accidents amongst Royal Navy ships on their way from Rosyth in Scotland to fleet exercises on the misty night of 31 January to 1 February 1918. This saw the loss of two submarines, damage to three other submarines and a light cruiser, and the deaths of over 100 men, all of the Royal Navy. Although it took place during the First World War it was an entirely accidental tragedy and no enemy forces were present.

[edit] History

Around 40 naval vessels left Rosyth on the Firth of Forth, Scotland on the misty 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. Large boats for their time at 339 feet long they 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 30 miles (50 km) long. At the head of the line were the two cruisers Courageous and Irthuriel followed by the rest of the 13th Submarine Flotilla. This in turn was followed by the battlecruiser squadron, HMAS Australia, HMS New Zealand, HMS Indomitable and HMS 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, each vessel showed only a dim stern light to the following vessel as dusk fell 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 minesweeping trawlers were seen approaching the line of submarines. The flotilla altered course sharply to port to avoid them but K14's helm jammed and she veered out of line. Both K14 and the boat behind her, K12 turned on their navigation lights and eventually K14s helm was freed and she tried to return to her position in the line. However as she did so the following submarine, K22 had lost sight of the rest of the flotilla in the mist and 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 30 feet of K22's bows at right angles, wrecked ballast and fuel tanks and she sank by the bow until only the conning tower showed.

Meanwhile the captain of Ithuriel had received and decoded the message about the earlier 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.

Unfortunately 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 sunk 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 which put her on a collision path with K6 which now K6 tried to avoid her but in doing so hit K4, nearly cutting the latter in half. The mortally wounded 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 and over a hundred people killed. The accident was kept secret during the war, and a memorial cairn was finally erected 84 years later, in 31 January 2002 in Anstruther harbour opposite the Isle of May.