HMS E13
HMS "E13" was a British E class submarine built by HM Dockyard, Chatham. "E13" was laid down on 16 December 1912 and was commissioned on 9 December 1914. The hull cost £101,900. Design. Like all post-"E8" British E-class submarines, "E13" had a displacement of at the surface and while submerged. She had a total length of and a beam of . She was powered by two Vickers eight-cylinder two-stroke diesel engines and two electric motors. The submarine had a maximum surface speed of and a submerged speed of . British E-class submarines had fuel capacities  of of diesel and ranges of when travelling at . "E13" was capable of operating submerged for five hours when travelling at . As with most of the early "E" class boats, "E13" was not fitted with a deck gun during construction, but one was mounted later. 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 power ratings; in some submarines, these were later upgraded to systems by removing a midship torpedo tube. Their maximum  design depth was although in service some reached depths of below . Some submarines contained Fessenden oscillator systems. Crew. Her complement was three officers and 28 men. Service history. HMS "E13" had a relatively short career during World War I. On 14 August 1915, she was despatched from Harwich, accompanied by her sister vessel HMS "E8". The two submarines had orders to sail to the Baltic Sea to interdict German shipping, particularly vessels carrying iron ore shipments from Sweden. At around 01:00 on 18 August 1915, the submarine ran aground in shallow water near Saltholm island in the Øresund between Malmö  and Copenhagen, because of a defective gyrocompass. At dawn she became clearly visible. At 05:00 the Royal Danish Navy torpedo boat "Narhvalen" appeared on the scene and hailed the "E13's" commander, Lt Cdr Geoffrey Layton, informing him that he had 24 hours to refloat his vessel and leave before he and his crew would be interned for violating Denmark's neutrality. The "E13's" crew sought to lighten the submarine by pumping out tanks and discharging fuel, but she had grounded in only of water and would not move. Layton realised that he would not be able to refloat  the "E13" before the deadline passed and sent his first lieutenant ashore to arrange a tow or, if this was impracticable, to negotiate terms for internment. He was unable to contact the Admiralty for assistance, as the Germans were jamming radio frequencies. At 10:28 the German torpedo boat "G132" arrived but withdrew when the Danish torpedo boats "Støren" and "Søulven" approached. A third Danish torpedo boat, the "Tumleren", arrived shortly afterwards. Meanwhile, the commander of the "G132", Oberleutnant zur See Paul Graf von Montgelas, had informed Rear Admiral Robert Mischke by radio about the "E13's" grounding. German naval operations  against the Russian-held city of Riga were at a critical stage and Mischke felt that he could not afford to let the "E13" pass into the Baltic, where it could threaten the German offensive in the Gulf of Riga. He ordered "G132" and another torpedo boat to destroy the submarine. The two vessels returned to Saltholm and opened fire on the "E13" with torpedoes, machine-guns and shell fire from a range of 300 yards. The submarine was hit repeatedly and set on fire. Seeing this, Lt Cdr Layton ordered the submarine to be abandoned, but the firing continued  while his men were in the water. The engagement ended when the Danish torpedo boat "Søulven" placed herself between the submarine and the two German ships, which withdrew. Fourteen of the "E13's" crew were killed in the attack and one was missing, presumed killed. The "E13's" fifteen surviving crew members were interned at the Copenhagen Navy Yard by the Danes for the rest of the war. Layton refused to give his parole and eventually escaped along with his first officer, returning to England to continue the war. He went on to have a distinguished career and commanded the  British Eastern Fleet during the Second World War. The Danish government fitted out the mail steamer "Vidar" as a temporary chapel to transport the bodies of the casualties back to Hull, accompanied by the Danish torpedo boats "Springeren" and "Støren". Notwithstanding Denmark's neutrality, the dead British sailors were given full honours when their bodies were brought ashore, as a contemporary report described: The incident caused outrage in Britain and Denmark, since it was clearly a serious breach of international law. The Danish newspaper "National Tidende" published an indignant leading article protesting at the Germans' violation of Danish neutrality. "Politiken  reported that the Danish government had protested to Germany, pointing out that the E13" had not been destroyed in any kind of pursuit but while she was lying damaged on neutral territory. The London "Times" fulminated in a leading article that "the unjustifiable slaughter of the men of the "E13" is one more notch in the long score we have to settle with the homicidal brood of Prussia." The German government subsequently apologised to Denmark, stating that "instructions previously given to commanders of German vessels to respect neutrality have once more been impressed upon them." Although the "E13" was refloated  by the Danes and towed to Copenhagen, she was so badly damaged by the German attack that her repair was not viable. On 6 February 1919, she was sold by the British government to a Danish company for 150,000 Danish kroner (about £8,330 at 1919 prices). On 14 December 1921, she was resold for scrap.