In August E11 was on duty once more, hunting in couples with E14. Commanders Boyle and Nasmith rendezvoused on the 6th, and concerted a plan for shelling troops next day on the land route to Gallipoli. This operation was very successful; in less than three hours E11’s 12-pounder twice broke up columns on the coast road. On the following day Commander Boyle destroyed a 5,000 ton supply steamer with torpedo and gun-fire, while Commander Nasmith sank the battleship _Haireddin Barbarossa_. This ship was passing north-east of Gallipoli, escorted by a destroyer. E11 was skilfully brought into position on her starboard beam, and two torpedoes got home amidships. The _Barbarossa_ immediately took a list to starboard, altered course towards the shore, and opened a heavy fire. But within twenty minutes a large flash burst from her fore part, and she rolled over and sank. The Turks attempted to conceal the details of this catastrophe; but they confided to Mr. Einstein of the American Embassy that a gunboat perished with _Barbarossa_, and one of two transports which she was convoying, while the other ran aground. They added that the attack was made by six submarines, who completely surrounded the battleship and her convoy. Commander Nasmith afterwards sank a large collier and two more transports, and then turned his attention again to cutting the enemy’s communications by land. His lieutenant, D’Oyly Hughes, volunteered to take the most dangerous part in an attack on the Ismid railway. A raft was put together behind Kalolimno Island, capable of supporting one man, and carrying his equipment and a charge of explosives. With this Lieutenant D’Oyly Hughes was to reach the shore, and blow up the railway line, or, if possible, the viaduct. The risk involved not only the volunteer but E11 herself, for so long as he had still a chance of returning, she could not quit the neighbourhood, or even conceal herself by submerging. At 2 a.m. Commander Nasmith took the boat inshore till her nose just grounded, within three feet of the rocks, where there were cliffs on each side high enough to prevent her conning-tower from being seen. Lieutenant D’Oyly Hughes dropped into the water and swam off, pushing his raft towards a spot about 60 yards to the left. Besides his demolition charge he had only a revolver, a bayonet, an electric torch, and a whistle. He found a landing place, scaled the cliff, and prowled along the railway with his heavy charge till he was brought up by the sound of voices; three Turks were sitting by the side of the line. He laid down his guncotton, and made a wide detour to inspect the viaduct, roused a small farmyard on his way, and was again stopped by finding a number of men working a stationary engine at the near end of the viaduct.