Submarine History Essay

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HISTORY: Leonardo Da Vinci sketched a primitive submarine around 1515, and in 1578, William Bourne drafted the first design for a submersible craft. In 1620, the first successful submarine was built by Cornelius Drebbel and tested in the Thames River, where it completed a three-hour journey. At least 14 different submarine designs were patented by 1727]. Early designs usually incorporated wooden submarine frames covered in oil-soaked waterproof leather, with oars extending from the hull for propulsion. American inventor David Bushnell developed the first military submarine in 1775, during the American Revolution. The Turtle was used on July 7, 1776, to sneak up on a British battleship and attach an explosive device to the hull of the enemy ship. Ultimately, the Turtle's mission failed. Designing an underwater weapon delivery system proved to be a difficult task for years to come. By the War of 1812, a submarine similar to the Turtle had almost perfected this part. It was able to screw an appendage (a vertically aligned large screw to which a rope connected an explosive) into the hull of a British warship. But the screw dislodged, separating the torpedo from its intended target. If able to catch up to an enemy ship and attach explosives to it, escaping proved just as difficult. The crew of the H.L. Hunley, a submarine used by the Confederacy during the Civil War, discovered this. The H.L. Hunley used a long spar, or arm, to hold and release an explosive charge, successfully sinking the USS Housatonic. However, the H.L. Hunley also fell victim to the explosion, and its entire crew died on Feb. 17, 1864. Submarine Development in the 19th Century Designs for a battery- and diesel-propelled submarine emerged in the years following the Civil War. In 1867, an important step was made with the successful launch of the world's first steam-powered submarine, the Ictineo

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