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FAT (torpedo)
List of World War II ''Kriegsmarine'' torpedoes ''Kriegsmarine'' torpedo designation system The first letter indicates the diameter: * G = 53 cm (21 in) * F = 45 cm (17.7 in) * H = 60 cm (23.7 in) * M = 75 cm (30 in) The number indicates the approximate length (for example, the length of the TI is 7163 mm): * 7 = 7 m * 6 = 6 m * 5 = 5 m Next letter(s) indicates specific features regarding propulsion and control: * a = Atem, i.e. Pressluft/Dampfgemisch-Antrieb (pressurized air/steam - "wetheater" - engine) * e = Elektrischer Antrieb (electric engine) * f = Fernlenkung (remote control by radio or cable) * d = Sauerstoff/Dampfgemisch-Antrieb (oxygen/steam engine) * p = Primärbatterie-Antrieb (primary battery propulsion) * m = Verbrennungsmaschine mit Kreislaufverfahren (combustion engine recirculating air) * u = Sauerstoffträger Ingolin spurenfreier Antrieb (oxygen/steam engine with hydrogen peroxide as source for air, and no exposing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
G7a Torpedo
The G7a(TI) was the standard issue ''Kriegsmarine'' torpedo introduced to service in 1934. It was a steam-powered design, using a wet heater engine burning decaline, with a range of at speed. In 1936, the Kriegsmarine's first electrical powered torpedo was introduced with the G7e(TII). It was replaced beginning in 1942 by the G7e(TIII). The G7a(TI) remained in service as the main torpedo of Kriegsmarine for the length of the war, being the only torpedo used from surface vessels, and alongside electric torpedoes on the uboats. Design The G7a(TI) torpedo was in diameter, in length (with a type Ka or Kb warhead and Pi1 or Pi2 pistol), the warhead holding a charge of approximately of Schießwolle 36. It was Kriegsmarine's first operational torpedo (hence "TI" = Torpedo number one), and the standard issue torpedo for all German U-boats and surface torpedo-bearing vessels from 1934 to the end of WW2. The torpedo was a straight-running unguided design, controlled by a gyrosc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battery (electricity)
An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons. When a battery is connected to an external electric load, those negatively charged electrons flow through the circuit and reach the positive terminal, thus causing a redox reaction by attracting positively charged ions, or cations. Thus, higher energy reactants are converted to lower energy products, and the free-energy difference is delivered to the external circuit as electrical energy. Historically the term "battery" specifically referred to a device composed of multiple cells; however, the usage has evolved to include devices composed of a single cell. Primary (single-use or "disposable") batteries are used once and discarded, as the electrode mat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auxiliary Cruiser
An armed merchantman is a merchant ship equipped with guns, usually for defensive purposes, either by design or after the fact. In the days of sail, piracy and privateers, many merchantmen would be routinely armed, especially those engaging in long distance and high value trade. In more modern times, auxiliary cruisers were used offensively as merchant raiders to disrupt trade chiefly during both World War I and World War II, particularly by Germany. While armed merchantmen are clearly inferior to purpose-built warships, sometimes they have scored successes in combat against them. Examples include East Indiamen mimicking ships of the line and chasing off regular French warships in the Battle of Pulo Aura in 1804, and the sinking the Australian light cruiser in their battle in 1941, although ''Kormoran'' was also destroyed and had to be scuttled. Pre-20th century East Indiamen of various European countries were heavily armed for their long journeys to the Far East. In par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Torpedo Boats Of World War II
The German torpedo boats of World War II were armed principally, if not exclusively, with torpedoes and varied widely in size. They were not small ''schnellboote'' (known to the Allies as E-boats) but small seagoing vessels, the larger of which were comparable to destroyers. During World War II, German torpedo boats were administratively grouped into several torpedo-boat flotillas. Classes World War I Vintage Certain old torpedo boats and coastal motor boats from WW I were still on active service during WW II after modernisation in 1920s and 1930s. While most were converted to various auxiliary duties at the beginning of the war, several were still used in their original torpedo boat role. Examples included '' T107'', '' T108'', ''T110'', ''T111'' and ''T196''. Several others, including ''T151'', ''T153'', ''T155'', ''T156'', ''T157'', ''T158'' and ''T190'' were rearmed after the outbreak of war and used first in the invasions of Poland and Norway, and then in the latter stage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Destroyer
In naval terminology, a destroyer is a fast, maneuverable, long-endurance warship intended to escort larger vessels in a fleet, convoy, or carrier battle group and defend them against a wide range of general threats. They were conceived in 1885 by Fernando Villaamil for the Spanish NavySmith, Charles Edgar: ''A short history of naval and marine engineering.'' Babcock & Wilcox, ltd. at the University Press, 1937, page 263 as a defense against torpedo boats, and by the time of the Russo-Japanese War in 1904, these "torpedo boat destroyers" (TBDs) were "large, swift, and powerfully armed torpedo boats designed to destroy other torpedo boats". Although the term "destroyer" had been used interchangeably with "TBD" and "torpedo boat destroyer" by navies since 1892, the term "torpedo boat destroyer" had been generally shortened to simply "destroyer" by nearly all navies by the First World War. Before World War II, destroyers were light vessels with little endurance for unatte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panzerschiffe
The class was a series of three (armored ships), a form of heavily armed cruiser, built by the officially in accordance with restrictions imposed by the Treaty of Versailles. The ships of the class, , , and , were all stated to displace in accordance with the Treaty, though they actually displaced at standard displacement. The design for the ships incorporated several radical innovations, including the first major use of welding in a warship and all- diesel propulsion. Due to their heavy armament of six guns and lighter weight, the British began referring to the vessels as "pocket battleships". The -class ships were initially classified as , but the reclassified them as heavy cruisers in February 1940. The three ships were built between 1929 and 1936 by the Deutsche Werke in Kiel and the in Wilhelmshaven, seeing much service with the German Navy. All three vessels served on non-intervention patrols during the Spanish Civil War. While on patrol, was attacked by Republ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cruiser
A cruiser is a type of warship. Modern cruisers are generally the largest ships in a fleet after aircraft carriers and amphibious assault ships, and can usually perform several operational roles from search-and-destroy to ocean escort to sea denial. The term "cruiser", which has been in use for several hundred years, has changed its meaning over time. During the Age of Sail, the term ''cruising'' referred to certain kinds of missions—independent scouting, commerce protection, or raiding—usually fulfilled by frigates or sloop-of-war, sloops-of-war, which functioned as the ''cruising warships'' of a fleet. In the middle of the 19th century, ''cruiser'' came to be a classification of the ships intended for cruising distant waters, for commerce raiding, and for scouting for the battle fleet. Cruisers came in a wide variety of sizes, from the medium-sized protected cruiser to large armored cruisers that were nearly as big (although not as powerful or as well-armored) as a pre- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battleship
A battleship is a large, heavily naval armour, armored warship with a main battery consisting of large naval gun, guns, designed to serve as a capital ship. From their advent in the late 1880s, battleships were among the largest and most formidable weapon systems ever built, until they were surpassed by aircraft carriers beginning in the 1940s. The modern battleship traces its origin to the sailing ship of the line, which was developed into the steam ship of the line and soon thereafter the ironclad warship. After a period of extensive experimentation in the 1870s and 1880s, ironclad design was largely standardized by the British , which are usually referred to as the first "pre-dreadnought battleships". These ships carried an armament that usually included four large guns and several medium-caliber guns that were to be used against enemy battleships, and numerous small guns for self-defense. Naval powers around the world built dozens of pre-dreadnoughts in the 1890s and early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
E-Boat
E-boat was the Western Allies' designation for the fast attack craft (German: ''Schnellboot'', or ''S-Boot'', meaning "fast boat"; plural ''Schnellboote'') of the Kriegsmarine of Nazi Germany during World War II; ''E-boat'' could refer to a patrol craft from an armed motorboat to a large ''Torpedoboot.'' The name of E-boats was a British designation using the letter ''E'' for ''Enemy''. The main wartime production boats, from ''S26'' onwards (but often designated the ''S100'' class), were very seaworthy, heavily armed and capable of sustaining , briefly accelerating to . These were armed with torpedoes and Flak guns; commonly one 37 mm at the stern, one 20 mm at the bow with a twin mount amidships, plus machine guns. Armament varied and some ''S26'' class boats substituted a 40mm Bofors or, less commonly, a 20mm ''flakvierling'' (quadruple mount) for the aft 37mm cannon. The ''S26'' class boats – which provided the bulk of the wartime deliveries – were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitehead Torpedo Factory
Whitehead Torpedo Works was a company established in the 19th century by Robert Whitehead that developed the Whitehead torpedo. It grew from its initial location at Fiume to Wyke Regis and to Livorno, but the former two plants closed by the end of World War II. The Italian branch maintained the name Whitehead for a long time into the late 20th century, and still exists as Leonardo Sistemi di Difesa . History Robert Whitehead worked for a metal foundry in the city of Fiume (today Rijeka, Croatia), and became its manager in 1856, and changed its name to ''Stabilimento Tecnico di Fiume'' (STF). STF produced marine steam boilers and engines, including for the Austro-Hungarian Navy. The invention of the self-propelled torpedo happened at that company, but it was not profitable and the company went bankrupt in 1873. The Whitehead company, Torpedo-Fabrik von Robert Whitehead, was founded in 1875 and would produce for the first torpedoes sold all around the world. In 1890 Whitehead op ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarines Of The Imperial Japanese Navy
Imperial Japanese Navy submarines originated with the purchase of five Holland type submarines from the United States in 1904. Japanese submarine forces progressively built up strength and expertise, becoming by the beginning of World War II one of the world's most varied and powerful submarine fleets. Origins The Imperial Japanese Navy (IJN) acquired its first submarines during the Russo-Japanese War on 12 December 1904 where they arrived in sections at the Yokohama dockyards. The vessels were purchased from the relatively new American company, Electric Boat, and were fully assembled and ready for combat operations by August 1905.Jentschura p. 160 However, hostilities with Russia were nearing its end by that date, and no submarines saw action during the war. The submarines that Electric Boat sold to Japan were based on the Holland designs, known as Holland Type VIIs similar to the American s. The five imported Hollands were originally built at Fore River Ship and Engine Comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PID Controller
PID or Pid may refer to: Medicine * Pelvic inflammatory disease or pelvic inflammatory disorder, an infection of the upper part of the female reproductive system * Primary immune deficiency, disorders in which part of the body's immune system is missing or does not function properly * Prolapsed intervertebral disc, commonly called a herniated disc Science, technology and engineering * BBC Programme Identifier, a unique identifier for a BBC television or radio programme brand, a season or series, or an individual episode * OBD-II PIDs (on-board diagnostics parameter IDs), requests for data through an OBD connector in automotive repair * Packet Identifier, a field in a MPEG transport stream#Packet Identifier (PID), MPEG transport stream packet * Partial information decomposition, an extension of information theory * Passive infrared detector, a passive infrared sensor * Payload Interface Document (used on space engineering program for example) * Persistent identifier, a long-lastin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
