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UC-3
SM ''UC-3'' was a German Type UC I minelayer submarine or U-boat in the German Imperial Navy (german: Kaiserliche Marine) during World War I. The U-boat had been ordered by November 1914 and was launched on 28 May 1915. She was commissioned into the German Imperial Navy on 1 June 1915 as ''UC-3''."SM" stands for ''Seiner Majestäts'' ( en, His Majesty's) and combined with the "U" for ''Unterseeboot'' translates as "His Majesty's Submarine". Mines laid by ''UC-3'' in her 29 patrols were credited with sinking 22 ships and damaging 2 others. ''UC-3'' was caught in a net, detected by hydrophone, and sunk on 23 April 1916 or mined and sunk on 27 May 1916. Design A German Type UC I submarine, ''UC-3'' had a displacement of when at the surface and while submerged. She had a length overall of , a beam of , and a draught of . The submarine was powered by one Daimler-Motoren-Gesellschaft six-cylinder, four-stroke diesel engine producing , an electric motor producing , and one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrophone
A hydrophone ( grc, ὕδωρ + φωνή, , water + sound) is a microphone designed to be used underwater for recording or listening to underwater sound. Most hydrophones are based on a piezoelectric transducer that generates an electric potential when subjected to a pressure change, such as a sound wave. Some piezoelectric transducers can also serve as a sound projector, but not all have this capability, and some may be destroyed if used in such a manner. A hydrophone can detect airborne sounds, but will be insensitive because it is designed to match the acoustic impedance of water, a denser fluid than air. Sound travels 4.3 times faster in water than in air, and a sound wave in water exerts a pressure 60 times that exerted by a wave of the same amplitude in air. Similarly, a standard microphone can be buried in the ground, or immersed in water if it is put in a waterproof container, but will give poor performance due to the similarly bad acoustic impedance match. History T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Type UC I Submarine
The Type UC I coastal submarines were a class of small minelaying U-boats built in Germany during the early part of World War I. They were the first operational minelaying submarines in the world (although the Russian submarine ''Krab'' was laid down earlier). A total of fifteen boats were built. The class is sometimes also referred to as the ''UC-1'' class after , the class leader. The Italian X-class submarine was a reverse-engineered and modified type of the UC-1-class. Design These submarines were designed by Dr. Werner of the Torpedo Inspectorate, and based on the Type UB I small coastal submarines, with a revised bow section housing inclined minelaying tubes and uprated engines to compensate for the increased displacement and less streamlined form. The boats' sole armament was six internal mine tubes with 12 mines, although ''UC-11'' was fitted with a single external torpedo tube in 1916. They were constructed very quickly, and suffered from problems with their minela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Empire
The German Empire (), Herbert Tuttle wrote in September 1881 that the term "Reich" does not literally connote an empire as has been commonly assumed by English-speaking people. The term literally denotes an empire – particularly a hereditary empire led by an emperor, although has been used in German to denote the Roman Empire because it had a weak hereditary tradition. In the case of the German Empire, the official name was , which is properly translated as "German Empire" because the official position of head of state in the constitution of the German Empire was officially a " presidency" of a confederation of German states led by the King of Prussia who would assume "the title of German Emperor" as referring to the German people, but was not emperor of Germany as in an emperor of a state. –The German Empire" ''Harper's New Monthly Magazine''. vol. 63, issue 376, pp. 591–603; here p. 593. also referred to as Imperial Germany, the Second Reich, as well as simply Germa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Mines
A naval mine is a self-contained explosive device placed in water to damage or destroy surface ships or submarines. Unlike depth charges, mines are deposited and left to wait until they are triggered by the approach of, or contact with, any vessel or a particular vessel type, akin to anti-infantry vs. anti-vehicle mines. Naval mines can be used offensively, to hamper enemy shipping movements or lock vessels into a harbour; or defensively, to protect friendly vessels and create "safe" zones. Mines allow the minelaying force commander to concentrate warships or defensive assets in mine-free areas giving the adversary three choices: undertake an expensive and time-consuming minesweeping effort, accept the casualties of challenging the minefield, or use the unmined waters where the greatest concentration of enemy firepower will be encountered. Although international law requires signatory nations to declare mined areas, precise locations remain secret; and non-complying individuals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Shipwrecks In November 1915
The list of shipwrecks in November 1915 includes ship A ship is a large watercraft that travels the world's oceans and other sufficiently deep waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research, and fishing. Ships are generally distinguishe ...s sunk, foundered, grounded, or otherwise lost during November 1915. 1 November 2 November 3 November 4 November 5 November 6 November 7 November 8 November 9 November 10 November 11 November 12 November 13 November 14 November 15 November 16 November 17 November 18 November 19 November 20 November 21 November 22 November 23 November 24 November 25 November 26 November 27 November 28 November 29 November 30 November Unknown date References {{DEFAULTSORT:List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Shipwrecks In October 1915
The list of shipwrecks in October 1915 includes ships sunk, foundered, grounded, or otherwise lost during October 1915. 1 October 2 October 3 October 4 October 5 October 6 October 7 October 8 October 9 October 10 October 11 October 12 October 14 October 15 October 16 October 17 October 18 October 19 October 20 October 21 October 22 October 23 October 24 October 25 October 26 October 27 October 28 October 29 October 30 October 31 October Unknown date References {{DEFAULTSORT:List of Shipwrecks in 1915-10 1915-10 10 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Shipwrecks In September 1915
The list of shipwrecks in September 1915 includes ships sunk, foundered, grounded, or otherwise lost during September 1915. 1 September 2 September 3 September 4 September 5 September 6 September 7 September 8 September 9 September 10 September 11 September 12 September 13 September 14 September 15 September 16 September 17 September 18 September 19 September 20 September 21 September 22 September 23 September 24 September 25 September 26 September 27 September 28 September 29 September 30 September Unknown date References {{DEFAULTSORT:List of Shipwrecks in 1915-09 1915-09 09 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Shipwrecks In July 1915
The list of shipwrecks in July 1915 includes ship A ship is a large watercraft that travels the world's oceans and other sufficiently deep waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research, and fishing. Ships are generally distinguishe ...s sunk, foundered, grounded, or otherwise lost during July 1915. 1 July 2 July 3 July 4 July 5 July 6 July 7 July 8 July 9 July 11 July 12 July 13 July 14 July 15 July 16 July 17 July 18 July 19 July 20 July 21 July 22 July 23 July 24 July 25 July 26 July 27 July 28 July 29 July 30 July 31 July Unknown date References {{DEFAULTSORT:List of Shipwrecks in 1915-07 1915-07 07 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Displacement (ship)
The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into weight. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, tonnes are more commonly used. Ship displacement varies by a vessel's degree of load, from its empty weight as designed (known as "lightweight tonnage") to its maximum load. Numerous specific terms are used to describe varying levels of load and trim, detailed below. Ship displacement should not be confused with measurements of volume or capacity typically used for commercial vessels and measured by tonnage: net tonnage and gross tonnage. Calculation The process of determining a vessel's displacement begins with measuring its draft.George, 2005. p.5. This is accomplished by means of its "draft marks" (or "load lines"). A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propeller Shaft
A drive shaft, driveshaft, driving shaft, tailshaft (Australian English), propeller shaft (prop shaft), or Cardan shaft (after Girolamo Cardano) is a component for transmitting mechanical power and torque and rotation, usually used to connect other components of a drivetrain that cannot be connected directly because of distance or the need to allow for relative movement between them. As torque carriers, drive shafts are subject to torsion and shear stress, equivalent to the difference between the input torque and the load. They must therefore be strong enough to bear the stress, while avoiding too much additional weight as that would in turn increase their inertia. To allow for variations in the alignment and distance between the driving and driven components, drive shafts frequently incorporate one or more universal joints, jaw couplings, or rag joints, and sometimes a splined joint or prismatic joint. History The term ''driveshaft'' first appeared during the mid-19th centu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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