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HMS Upholder
Two Royal Navy submarines have been named HMS ''Upholder''. *The first , launched in 1940, was a U-class submarine. She served in World War II. Her captain was Lieutenant Commander David Wanklyn, who received the Victoria Cross whilst in command of the vessel. HMS ''Upholder'' was the most decorated submarine in the British fleet. She was sunk off the coast of Sfax in North Africa by the Italian torpedo boat ''Pegaso'' in April 1942. *The second , launched in 1986 and named after the first, was the lead ship The lead ship, name ship, or class leader is the first of a series or class of ships all constructed according to the same general design. The term is applicable to naval ships and large civilian vessels. Large ships are very complex and may ... of her class of submarines. {{DEFAULTSORT:Upholder, Hms Royal Navy ship names ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Navy
The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against France. The modern Royal Navy traces its origins to the early 16th century; the oldest of the UK's armed services, it is consequently known as the Senior Service. From the middle decades of the 17th century, and through the 18th century, the Royal Navy vied with the Dutch Navy and later with the French Navy for maritime supremacy. From the mid 18th century, it was the world's most powerful navy until the Second World War. The Royal Navy played a key part in establishing and defending the British Empire, and four Imperial fortress colonies and a string of imperial bases and coaling stations secured the Royal Navy's ability to assert naval superiority globally. Owing to this historical prominence, it is common, even among non-Britons, to ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British U-class Submarine
The British U-class submarines (officially "''War Emergency 1940 and 1941 programmes, short hull''") were a class of 49 small submarines built just before and during the Second World War. The class is sometimes known as the ''Undine'' class, after the first submarine built. A further development was the British V-class submarine of 1942. Background The Royal Navy was limited to no more than of submarines by the London Naval Treaty of 1930. The tonnage limit led to proposals for smaller submarines which was also prompted by trials with larger submarines demonstrating that they were easier to find and lacked manoeuvrability. By coincidence the First World War-vintage H-class submarines used for training in anti-submarine warfare were reaching the end of their useful service. The Rear-Admiral Submarines, Noel Laurence, wanted a class of small, inexpensive boats for training, armed with torpedoes for short-range patrols. In March 1934 wrote a specification for a "Small, Simple, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine
A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely operated vehicles and Autonomous underwater vehicle, robots, as well as medium-sized or smaller vessels, such as the midget submarine and the wet sub. Submarines are referred to as ''boats'' rather than ''ships'' irrespective of their size. Although experimental submarines had been built earlier, submarine design took off during the 19th century, and they were adopted by several navies. They were first widely used during World War I (1914–1918), and are now used in many navy, navies, large and small. Military uses include attacking enemy surface ships (merchant and military) or other submarines, and for aircraft carrier protection, Blockade runner, blockade running, Ballistic missile submarine, nuclear deterrence, reconnaissance, conventio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Italian Torpedo Boat Pegaso (1936)
''Pegaso'' was a torpedo boat and an escort aviso of the Italian ''Regia Marina'' (Royal Navy). She was one of the most successful Axis anti-submarine warships of World War II. Design and construction The ''Orsa''-class torpedo boats were enlarged versions of the torpedo boats of the ''Spica''-class with greater range and endurance. Compared to the ''Spica''-class, they had significantly more anti-submarine armaments, with 6 depth charge launchers compared to 2 on the ''Spica'', however they were slower and had fewer naval guns (2 vs 3 on the ''Spica''). These ships had a total length of 82.5 meters p/p (89.3 meters o/a), a beam of 9.69 meters and a draught of 3.1 meters. They displaced 840 tonnes at standard load and 1,600 tonnes at full load. Their complement was 154 officers, non-commissioned officers and sailors. The ''Orsa''-class were powered by two geared steam turbines, each driving a propeller shaft and using steam supplied by two boilers. The rated power of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead Ship
The lead ship, name ship, or class leader is the first of a series or class of ships all constructed according to the same general design. The term is applicable to naval ships and large civilian vessels. Large ships are very complex and may take as many as five to ten years to build. Improvements based on experience with building and operating the lead ship are likely to be incorporated into the design or construction of later ships in the class, so it is rare to have vessels that are identical. The second and later ships are often started before the first one is completed, launched and tested. Nevertheless, building copies is still more efficient and cost-effective than building prototypes, and the lead ship will usually be followed by copies with some improvements rather than radically different versions. The improvements will sometimes be retrofitted to the lead ship. Occasionally, the lead ship will be launched and commissioned for shakedown testing before following ship ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upholder-class Submarine
The ''Upholder''/''Victoria''-class submarines, also known as the Type 2400 (due to their displacement of 2,400 tonnes), are the class of the diesel-electric submarines built in the United Kingdom in the 1980s to supplement the nuclear submarines in the Submarine Service of the British Royal Navy. The boats were originally named the ''Upholder'' class, after the most renowned vessel of the former U class. Their British service life was short, with the vessels being decommissioned in 1994. After an unsuccessful bid to transfer these submarines to the Pakistan Navy in 1993–1994, the Canadian government eventually purchased the submarines and a suite of trainers from the Royal Navy for Canadian Forces Maritime Command (renamed to Royal Canadian Navy in 2011) to replace their decommissioned s in 1998. In Canadian service, the submarines are classified as the ''Victoria'' class. These submarines initially suffered from serious electrical problems and were beset by mechanical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
