Human torpedoHuman torpedoes or manned torpedoes are a type of diver propulsion vehicle on which the diver rides, generally in a seated position behind a fairing. They were used as secret naval weapons in World War II. The basic concept is still in use. The name was commonly used to refer to the weapons that Italy, and later (with a larger version) Britain, deployed in the Mediterranean and used to attack ships in enemy harbors. The human torpedo concept has occasionally been used by recreational divers, although this use is closer to midget submarines.
LorientLorient (lɔʁjɑ̃; An Oriant) is a town (commune) and seaport in the Morbihan department of Brittany in western France. History of Lorient Beginning around 3000 BC, settlements in the area of Lorient are attested by the presence of megalithic architecture. Ruins of Roman roads (linking Vannes to Quimper and Port-Louis to Carhaix) confirm Gallo-Roman presence. In 1664, Jean-Baptiste Colbert founded the French East Indies Company. In June 1666, an ordinance of Louis XIV granted lands of Port-Louis to the company, along with Faouédic on the other side of the roadstead.
Loch EweLoch Ewe (Loch Iùbh) is a sea loch in the region of Wester Ross in the Northwest Highlands of Scotland. The shores are inhabited by a traditionally Gàidhlig-speaking people living in or sustained by crofting villages, the most notable of which, situated on the north-eastern shore, is the Aultbea settlement. Due to the rugged and inaccessible terrain in which it is located, Loch Ewe has always been an assembly point for maritime trade.
Air-independent propulsionAir-independent propulsion (AIP), or air-independent power, is any marine propulsion technology that allows a non-nuclear submarine to operate without access to atmospheric oxygen (by surfacing or using a snorkel). AIP can augment or replace the diesel-electric propulsion system of non-nuclear vessels. Modern non-nuclear submarines are potentially stealthier than nuclear submarines; although some modern submarine reactors are designed to rely on natural circulation, most naval nuclear reactors use pumps to constantly circulate the reactor coolant, generating some amount of detectable noise.
SperrbrecherA Sperrbrecher (German; informally translated as "pathfinder" but literally meaning "mine barrage breaker"), was a German auxiliary ship of the First World War and the Second World War that served as a type of minesweeper, steaming ahead of other vessels through minefields and detonating them with their reinforced hull. Also used as anti-aircraft ships, the Sperrbrecher suffered heavy losses in the war. Sperrbrecher were used extensively by the Germans in World War I.
High-frequency direction findingHigh-frequency direction finding, usually known by its abbreviation HF/DF or nickname huff-duff, is a type of radio direction finder (RDF) introduced in World War II. High frequency (HF) refers to a radio band that can effectively communicate over long distances; for example, between U-boats and their land-based headquarters. HF/DF was primarily used to catch enemy radios while they transmitted, although it was also used to locate friendly aircraft as a navigation aid.
ReichskriegsflaggeThe term Reichskriegsflagge (ˈʁaɪçsˌkʁiːksflaɡə, National War Flag) refers to several war flags and war ensigns used by the German armed forces in history. A total of eight different designs were used in 1848–1849 and between 1867–1871 and 1945. Today the term refers usually to the flag from 1867–1871 to 1918, the war flag of Imperial Germany. After Prussia defeated Austria in 1866, the North German Confederation was founded by Prussia in order to replace the former German Confederation in which Austria had been the dominant power.
