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HMS E11
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HMS E11
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.
Like all post-E8 British E-class submarines, E11 had a displacement of 662 long tons (673 t) at the surface and 807 long tons (820 t) while submerged. She had a total length of 180 feet (55 m) and a beam of 22 feet 8.5 inches (6.922 m). She was powered by two 800 horsepower (600 kW) Vickers eight-cylinder two-stroke diesel engines and two 420 horsepower (310 kW) electric motors. The submarine had a maximum surface speed of 16 knots (30 km/h; 18 mph) and a submerged speed of 10 knots (19 km/h; 12 mph). British E-class submarines had fuel capacities of 50 long tons (51 t) of diesel and ranges of 3,255 miles (5,238 km; 2,829 nmi) when travelling at 10 knots (19 km/h; 12 mph). E11 was capable of operating submerged for five hours when travelling at 5 knots (9.3 km/h; 5.8 mph).
E11 initially did not have a deck gun. After her first Dardanelles tour, she was fitted with a 12-pounder 76 mm (3.0 in) QF by the dockyard in Malta.
She had five 18-inch (450 mm) torpedo tubes, two in the bow, one either side amidships, and one in the stern; a total of 10 torpedoes were carried.
E-class submarines had wireless systems with 1 kilowatt (1.3 hp) power ratings; in some submarines, these were later upgraded to 3 kilowatts (4.0 hp) systems by removing a midship torpedo tube. Their maximum design depth was 100 feet (30 m) although in service some reached depths of below 200 feet (61 m). Some submarines contained Fessenden oscillator systems.
Her complement was three officers and 28 men.
E11 joined the 8th Submarine Flotilla at Harwich following sea trials on 2 October 1914 under the command of Lieutenant-Commander Martin Nasmith.
Later that month, on her first war patrol E11 was dispatched to the Baltic Sea along with two other submarines. Nasmith was deterred from breaking through the entrance to the Baltic by numerous vessels and warships in Swedish waters during a night passage. Next morning he mistook Havmanden, a submarine of neutral Denmark, for the German submarine SM U-3. The misidentification was principally caused by the pennant number "3" on her conning tower. Two torpedoes were fired, one of which glanced off the bottom of the hull, causing no damage and a minor diplomatic incident. E11 then returned to Harwich.
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HMS E11
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.
Like all post-E8 British E-class submarines, E11 had a displacement of 662 long tons (673 t) at the surface and 807 long tons (820 t) while submerged. She had a total length of 180 feet (55 m) and a beam of 22 feet 8.5 inches (6.922 m). She was powered by two 800 horsepower (600 kW) Vickers eight-cylinder two-stroke diesel engines and two 420 horsepower (310 kW) electric motors. The submarine had a maximum surface speed of 16 knots (30 km/h; 18 mph) and a submerged speed of 10 knots (19 km/h; 12 mph). British E-class submarines had fuel capacities of 50 long tons (51 t) of diesel and ranges of 3,255 miles (5,238 km; 2,829 nmi) when travelling at 10 knots (19 km/h; 12 mph). E11 was capable of operating submerged for five hours when travelling at 5 knots (9.3 km/h; 5.8 mph).
E11 initially did not have a deck gun. After her first Dardanelles tour, she was fitted with a 12-pounder 76 mm (3.0 in) QF by the dockyard in Malta.
She had five 18-inch (450 mm) torpedo tubes, two in the bow, one either side amidships, and one in the stern; a total of 10 torpedoes were carried.
E-class submarines had wireless systems with 1 kilowatt (1.3 hp) power ratings; in some submarines, these were later upgraded to 3 kilowatts (4.0 hp) systems by removing a midship torpedo tube. Their maximum design depth was 100 feet (30 m) although in service some reached depths of below 200 feet (61 m). Some submarines contained Fessenden oscillator systems.
Her complement was three officers and 28 men.
E11 joined the 8th Submarine Flotilla at Harwich following sea trials on 2 October 1914 under the command of Lieutenant-Commander Martin Nasmith.
Later that month, on her first war patrol E11 was dispatched to the Baltic Sea along with two other submarines. Nasmith was deterred from breaking through the entrance to the Baltic by numerous vessels and warships in Swedish waters during a night passage. Next morning he mistook Havmanden, a submarine of neutral Denmark, for the German submarine SM U-3. The misidentification was principally caused by the pennant number "3" on her conning tower. Two torpedoes were fired, one of which glanced off the bottom of the hull, causing no damage and a minor diplomatic incident. E11 then returned to Harwich.
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