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United States R Class Submarine
The R-class submarines were a class of United States Navy coastal-defense submarines active from 1918 until 1945. With the first of the class laid down following the American entry into World War I, they were built rapidly. Although ''R-15'' through ''R-20'' were completed July–October 1918, they did not serve overseas, and the bulk of the class were not completed until after the Armistice. As had been the usual practice in several of the preceding classes, design and construction of the 27 boats of this class was split between the Electric Boat Company and the Lake Torpedo Boat Company. Both designs were built to the same military operational specifications, but differed considerably in design and detail specifics. Design Electric Boat The ''R-1'' through ''R-20'' boats were designed by Electric Boat and built by the company's subcontractor yards Bethlehem Quincy and Bethlehem San Francisco. These single-hull boats were structurally similar to the preceding O class, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philip Diehl (inventor)
Philip H. Diehl (January 29, 1847 – April 7, 1913) was a German- American mechanical engineer and inventor who held several U.S. patents, including electric incandescent lamps, electric motors for sewing machines and other uses, and ceiling fans. Diehl was a contemporary of Thomas Edison and his inventions caused Edison to reduce the price of his incandescent bulb. He occasionally spelled his first name 'Phillip'. In July 1868, he immigrated to New York City where he worked in several machine shops before finding work as an apprentice with the Singer Manufacturing Company. In 1870 or 1871 he was transferred to Chicago, Illinois, and worked at Remington Machine Company until 1875. He lost all of his possessions in the Great Chicago Fire of 1871. In 1873, Diehl married Emilie Loos in Chicago."Diehl's Lamp Hit Edison Monopoly," Elizabeth Daily Journal, Friday Evening, October 25, 1929 In 1875, Diehl moved to Elizabeth, New Jersey, and took charge of experimental work impro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simon Lake
Simon Lake (September 4, 1866 – June 23, 1945) was a Quaker American mechanical engineer and naval architect who obtained over two hundred patents for advances in naval design and competed with John Philip Holland to build the first submarines for the United States Navy. Biography Born in Pleasantville, New Jersey on September 4, 1866. He studied at the Clinton Liberal Institute in Fort Plain, New York. Lake joined his father's foundry business after attending public schools in New Jersey and Pennsylvania. Lake had a strong interest in undersea travel. He built his first submarine, '' Argonaut Junior'', in 1894 in response to an 1893 request from the US Navy for a submarine torpedo boat. In 1898 he followed up with the ''Argonaut 1'', which he sailed from Norfolk, Virginia for to Sandy Hook, New Jersey (which is actually north of Norfolk), arriving in November 1898. As a result of lessons learned on that journey, he rebuilt it into the ''Argonaut 2''. Neither ''Argonau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3-inch/23-caliber Gun
The 3-inch/23-caliber gun (spoken "three-inch-twenty-three-caliber") was the standard anti-aircraft gun for United States destroyers through World War I and the 1920s. United States naval gun terminology indicates the gun fired a projectile 3 inches (76 mm) in diameter, and the barrel was 23 calibers long (barrel length is 3" × 23 = 69" or 1.75 meters.) Description The built-up gun with horizontal sliding breech block weighed about 531 pounds (241 kg) and used fixed ammunition (case and projectile handled as a single assembled unit) with a 13-pound (6 kg) projectile at a velocity of 1650 feet per second (500 m/s).Campbell 1985 p.146 Range was 10,100 yards (9235 meters) at 45 degrees elevation. Ceiling was 18,000 feet (5500 meters) at the maximum elevation of 75 degrees.Campbell 1985 p.146 History The 3"/23-caliber cannon was the first purposely designed anti-aircraft cannon to reach operational service in the US military, and was a further development of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3-inch/50-caliber Gun
The 3-inch/50-caliber gun (spoken "three-inch fifty-caliber") in United States naval gun terminology indicates the gun fired a projectile in diameter, and the barrel was 50 calibers long (barrel length is 3 in × 50 = ). Different guns (identified by Mark numbers) of this caliber were used by the U.S. Navy and U.S. Coast Guard from 1900 through to 1990 on a variety of combatant and transport ship classes. The gun is still in use with the Spanish Navy on ''Serviola''-class patrol boats. Early low-angle guns The US Navy's first 3 inch /50-caliber gun (Mark 2) was an early model with a projectile velocity of per second. Low-angle (single-purpose/non-anti-aircraft) mountings for this gun had a range of 7000 yards at the maximum elevation of 15 degrees. The gun entered service around 1900 with the s, and was also fitted to s. By World War II these guns were found only on a few Coast Guard cutters and Defensively Equipped Merchant Ships. Low-angle 3 inch/50-caliber guns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Boat
An electric boat is a powered watercraft driven by electric motors, which are powered by either on-board battery packs, solar panels or generators. While a significant majority of water vessels are powered by diesel engines, with sail power and gasoline engines also popular, boats powered by electricity have been used for over 120 years. Electric boats were very popular from the 1880s until the 1920s, when the internal combustion engine became dominant. Since the energy crises of the 1970s, interest in this quiet and potentially renewable marine energy source has been increasing steadily, especially as more efficient solar cells have become available, for the first time making possible motorboats with a theoretically infinite cruise range like sailboats. The first practical solar boat was probably constructed in 1975 in England. The first electric sailboat to complete a round-the-world tour (including a transit of the Panama Canal) using only green technologies is EcoSailin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armistice With Germany
{{Short description, none This is a list of armistices signed by the German Empire (1871–1918) or Nazi Germany (1933–1945). An armistice is a temporary agreement to cease hostilities. The period of an armistice may be used to negotiate a peace treaty. * Armistice of Versailles (28 January 1871, came into effect fully by 31 January) :Signed with the Third French Republic, ended the Franco-Prussian War. A final peace, the Treaty of Frankfurt, was signed on 10 May 1871. * Armistice of Focșani (9 December 1917) :Signed by Germany and its allies—Austria-Hungary, Bulgaria and the Ottoman Empire—with Romania during World War I. A final peace, the Treaty of Bucharest, was signed on 7 May 1918. *Armistice between Russia and the Central Powers (15 December 1917) :Signed by Germany and its allies—Austria-Hungary, Bulgaria and the Ottoman Empire—with Soviet Russia after the Russian Revolution, ending the Eastern Front of World War I. The armistice came to an end on 18 February 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Entry Into World War I
The United States entered into World War I on 6 April 1917, more than two and a half years after the war began in Europe. Apart from an Anglophile element urging early support for the United Kingdom of Great Britain and Ireland, British and an anti-Tsarist element sympathizing with German Empire, Germany's war against Russian Empire, Russia, American public opinion had generally reflected a desire to stay out of the war. Over time, especially after reports of The Rape of Belgium, German atrocities in Belgium in 1914 and after the Sinking of the RMS Lusitania, sinking attack by the Imperial German Navy submarine (U-boat) torpedoing of the trans-Atlantic ocean liner off the southern coast of Ireland in May 1915, Americans increasingly came to see Imperial Germany as the aggressor in Europe. While the country was at peace, American banks made huge loans to the Allies of World War I, Entente powers (Allies), which were used mainly to buy munitions, raw materials, and food from acros ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine
A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or informally to refer to remotely operated vehicles and Autonomous underwater vehicle, robots, or to medium-sized or smaller vessels (such as the midget submarine and the wet sub). Submarines are referred to as ''boats'' rather than ''ships'' regardless of their size. Although experimental submarines had been built earlier, submarine design took off during the 19th century, and submarines were adopted by several navies. They were first used widely during World War I (1914–1918), and are now used in many navy, navies, large and small. Their military uses include: attacking enemy surface ships (merchant and military) or other submarines; aircraft carrier protection; Blockade runner, blockade running; Ballistic missile submarine, nuclear deterrenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 million tons in 2021. It has the world's largest aircraft carrier fleet, with List of aircraft carriers in service, eleven in service, one undergoing trials, two new carriers under construction, and six other carriers planned as of 2024. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the U.S. Navy is the third largest of the United States military service branches in terms of personnel. It has 299 deployable combat vessels and about 4,012 operational aircraft as of 18 July 2023. The U.S. Navy is one of six United States Armed Forces, armed forces of the United States and one of eight uniformed services of the United States. The United States Navy traces its origins to the Continental Navy, which was established during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deck Gun
A deck gun is a type of naval artillery mounted on the deck of a submarine. Most submarine deck guns were open, with or without a shield; however, a few larger submarines placed these guns in a turret. The main deck gun was a dual-purpose weapon used to sink merchant shipping or shell shore targets, or defend the submarine on the surface from enemy aircraft and warships. Typically a crew of three operated the gun, while others were tasked with supplying ammunition. A small locker box held a few 'ready-use' rounds. With a well-drilled, experienced crew, the rate of fire of a deck gun could be 15 to 18 aimed shots per minute. Some submarines also had additional deck guns like auto-cannons and machine guns for anti-aircraft defense. While similar unenclosed guns are often found on surface warships as secondary or defensive armament (such as the US Navy's 5-inch (127 mm)/25 caliber gun which was removed from battleships to mount on submarines), the term "deck gun" normally re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3"/50 Caliber Gun
The 3-inch/50-caliber gun (spoken "three-inch fifty-caliber") in United States naval gun terminology indicates the gun fired a projectile in diameter, and the barrel was 50 Caliber (artillery), calibers long (barrel length is 3 in × 50 = ). Different guns (identified by Mark numbers) of this caliber were used by the U.S. Navy and U.S. Coast Guard from 1900 through to 1990 on a variety of combatant and transport ship classes. The gun is still in use with the Spanish Navy on Serviola-class patrol boat, ''Serviola''-class patrol boats. Early low-angle guns The US Navy's first 3 inch /50-caliber gun (Mark 2) was an early model with a projectile velocity of per second. Low-angle (single-purpose/non-anti-aircraft) mountings for this gun had a range of 7000 yards at the maximum elevation of 15 degrees. The gun entered service around 1900 with the s, and was also fitted to s. By World War II these guns were found only on a few Coast Guard cutters and Defensively Equipped Mer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
