Friedrich Krupp GermaniawerftFriedrich Krupp Germaniawerft (often just called Germaniawerft, "Germania shipyard") was a German shipbuilding company, located in the harbour at Kiel, and one of the largest and most important builders of U-boats for the Kaiserliche Marine in World War I and the Kriegsmarine in World War II. The original company was founded in 1867 but went bankrupt and was bought out by Friedrich Krupp. Krupp was very interested in building warships and in the time before the First World War built a number of battleships for the Kaiserliche Marine, including , , , and .
Hedgehog (weapon)The Hedgehog (also known as an Anti-Submarine Projector) was a forward-throwing anti-submarine weapon that was used primarily during the Second World War. The device, which was developed by the Royal Navy, fired up to 24 spigot mortars ahead of a ship when attacking a U-boat. It was deployed on convoy escort warships such as destroyers and corvettes to supplement the depth charges.
Grand admiralGrand admiral is a historic naval rank, the highest rank in the several European navies that used it. It is best known for its use in Germany as Großadmiral. A comparable rank in modern navies is that of admiral of the fleet. The Austrian grand admirals were all members of the Imperial family, except for Anton Haus, the commander of the Austro-Hungarian navy for part of World War I: 1911: Archduke Charles Stephen of Austria (1860–1933) 12 May 1916: Anton Haus (1851–1917) 9 October 1916: Prince Henry of Prussia (1862–1929) 1 November 1916: Kaiser Charles I of Austria (1887–1922) 22 February 1917: Kaiser Wilhelm II of Germany (1859–1941) In Bourbon Restoration France, the rank was an honorific one equivalent to that of marshal in the French Army.
Q-shipQ-ships, also known as Q-boats, decoy vessels, special service ships, or mystery ships, were heavily armed merchant ships with concealed weaponry, designed to lure submarines into making surface attacks. This gave Q-ships the chance to open fire and sink them. The use of Q-ships contributed to the abandonment of cruiser rules restricting attacks on unarmed merchant ships and to the shift to unrestricted submarine warfare in the 20th century.
Aerial torpedoAn aerial torpedo (also known as an airborne torpedo or air-dropped torpedo) is a torpedo launched from a torpedo bomber aircraft into the water, after which the weapon propels itself to the target. First used in World War I, air-dropped torpedoes were used extensively in World War II, and remain in limited use. Aerial torpedoes are generally smaller and lighter than submarine- and surface-launched torpedoes. The idea of dropping lightweight torpedoes from aircraft was conceived in the early 1910s by Bradley A.
German battleship BismarckBismarck was the first of two s built for Nazi Germany's Kriegsmarine. Named after Chancellor Otto von Bismarck, the ship was laid down at the Blohm & Voss shipyard in Hamburg in July 1936 and launched in February 1939. Work was completed in August 1940, when she was commissioned into the German fleet. Bismarck and her sister ship were the largest battleships ever built by Germany, and two of the largest built by any European power.
WilhelmshavenWilhelmshaven (vɪlhɛlmsˈhaːfn̩, Wilhelm's Harbour; Northern Low Saxon: Willemshaven) is a coastal town in Lower Saxony, Germany. It is situated on the western side of the Jade Bight, a bay of the North Sea, and has a population of 76,089. Wilhelmshaven is the centre of the "Jade Bay" business region (which has around 330,000 inhabitants) and is Germany's main military port. The adjacent Lower Saxony Wadden Sea National Park (part of the Wattenmeer UNESCO World Natural Heritage Site) provides the basis for the major tourism industry in the region.
Polish NavyThe Polish Navy (; often abbreviated to Marynarka) is the naval branch of the Polish Armed Forces. The Polish Navy consists of 46 ships and about 12,000 commissioned and enlisted personnel. The traditional ship prefix in the Polish Navy is ORP (Okręt Rzeczypospolitej Polskiej, "Warship of the Republic of Poland"). Polish–Lithuanian Commonwealth Navy The Polish Navy has its roots in naval vessels that were largely employed on Poland's main rivers in defense of trade and commerce.
Biber (submarine)Biber (German for "beaver") was a German midget submarine of the Second World War. Armed with two externally mounted torpedoes or mines, they were intended to attack coastal shipping. They were the smallest submarines in the Kriegsmarine. The Biber was hastily developed to help meet the threat of an Allied invasion of Europe. This resulted in basic technical flaws that, combined with the inadequate training of their operators, meant they never posed a real threat to Allied shipping, despite 324 submarines being delivered.
Squadron (naval)A squadron, or naval squadron, is a significant group of warships which is nonetheless considered too small to be designated a fleet. A squadron is typically a part of a fleet. Between different navies there are no clear defining parameters to distinguish a squadron from a fleet (or from a flotilla), and the size and strength of a naval squadron varies greatly according to the country and time period. Groups of small warships, or small groups of major warships, might instead be designated flotillas by some navies according to their terminology.
