HMS E11
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HMS E11 was an E-class submarine of the Royal Navy launched on 23 April 1914. E11 was one of the most successful submarines in action during the 1915 naval operations in the Dardanelles Campaign, sinking over 80 vessels of all sizes in three tours of the Sea of Marmara.
In October 1914 E11 was dispatched to the Baltic Sea along with two other submarines but was twice intercepted by German patrols and forced to return to Harwich. During the Scarborough Raid in December 1914, the E11 attempted to intercept the German battlecruisers but failed due to faulty torpedoes.
In May 1915 E11 arrived at the Dardanelles to join the submarine campaign in the Sea of Marmara. Under the command of Lieutenant-Commander Martin Nasmith, E11 was the second submarine to undertake a successful tour, following the E14 which had passed through the straits on 27 April.
The E11 passed through the Dardanelles on the night of 18 May. Surfacing off the town of Gallipoli, Nasmith captured a Turkish sailing vessel and lashed it to the conning tower to act as a disguise. However, this ruse failed to attract any targets so after several days he abandoned it. Travelling up the Sea of Marmara, he sank a gunboat and several other small craft on 23 May. The following day, near the port of Rodosto (today Tekirdağ), E11 encountered the Turkish transport Nagara, laden with ammunition. Aboard the transport as an American journalist Raymond Swing, from the Chicago Daily News. Nasmith sank the ship after it was abandoned by the crew and passengers. Nasmith sank another transport and forced one aground before being driven away from the shore by some Turkish cavalry.
On 25 May 1915 E11 reached Constantinople. Nasmith was searching for the German warships Goeben and Breslau but when he surfaced at 12:40, he sighted the elderly transport Stamboul lying alongside the Tophane Arsenal. Nasmith's first torpedo ran in a circle and nearly struck the E11, however the second torpedo hit Stamboul. Under fire from shore-based artillery, E11 dived to make her escape. Caught in the strong Bosphorus current, E11 was out of control for 20 minutes until she settled on the bottom near the Maiden's Tower. Stamboul failed to sink but was beached at Harem. E11's attack on Constantinople, the first by an enemy vessel in over 100 years, had an enormous impact on Turkish morale, causing a panic in the city and compelling Goeben to shift to a safer mooring.
E11 returned to the Bosphorus approaches on 27 May and sank more ships but running short of torpedoes and with mounting mechanical problems, Nasmith headed home on 5 June. On his return passage through the Dardanelles he encountered another transport which, despite his vulnerable position and the poor state of the submarine, he attacked and sank with his final two torpedoes. Passing through the Narrows near Çanakkale, E11 snagged a moored mine. Nasmith had to tow the mine out of the straits before he was able to disentangle the submarine.
On E11's first tour, eleven ships were sunk or disabled. For this successful tour Nasmith was awarded the Victoria Cross, the third submarine commander to receive the award during the Dardanelles Campaign.
E11 was on her second tour when, on 8 August 1915 as a new British landing was underway at Suvla, E11 torpedoed the antiquated Turkish battleship Hayreddin Barbarossa off Bulair at the northern entrance to the Dardanelles. Hayreddin Barbarossa was one of two Turkish battleships sunk during the campaign. Visiting Constantinople again, E11 sank a Black Sea collier as it was preparing to unload—a significant blow as coal was the main fuel source and supplies were scarce. Moving into the Gulf of Izmit, on the night of 20 August, E11's first officer, Lieutenant D'Oyly Hughes, swam ashore and blew up a section of the Constantinople-Baghdad railway line; a feat for which he was awarded the Distinguished Service Order.
E11 made three tours of the Sea of Marmara and sank in total 27 steamers and 58 smaller vessels.
