Get American Coastal Defences 1885-1950 PDF

By Terrance McGovern, Bolling Smith, Peter Bull

ISBN-10: 1841769223

ISBN-13: 9781841769226

American Coastal Defences 1885-1950 КНИГИ ;ВОЕННАЯ ИСТОРИЯ American Coastal Defences 1885-1950 (Fortress forty four) ByTerrance McGovernPublisher:Os Publishing2006 64PagesISBN: 1841769223PDF19 MBA new around of fortification construction started within the usa and its in a foreign country territories within the late-19th century, which benefited from the most recent expertise and the rise in America's world wide monetary stature. This booklet offers a concise creation to the layout, improvement and objective of yank coastal defenses within the 'modern interval' (1885-1950), a interval outlined by way of concrete, metal, and robust breech-loading rifles. filled with interval and modern day pictures of the fortifications, and written via a number one professional, it covers the emplacements, weaponry, apparatus, and other people that defended their state in occasions of serious swap and uncertainty.sharingmatrixletitbit zero

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Extra resources for American Coastal Defences 1885-1950

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The most impressive batteries, two three-gun 14in. turrets removed from the sunken battleship USS Arizona and emplaced on the east and west coasts of Oahu, were not completed at the war's end. On the other hand, four batteries were completed, each with two twin-gun Sin. "turrets" removed from the carriers Lexington and Saratoga. Rather than true turrets, they were little more than weatherproof shields that protected their 8in. MklX Mod2 naval guns and crews. Railway artillery was manned until replaced by fixed guns, and some Sin.

However, were complex and required skilled operators, so the army eventually turned to gasoline power. In 1910, the army adopted a gasoline engine direct coupled to a 2S kW generator, cooled by a radiator with an electric fan. These sets were highly successful, and were used in every coastal fort, not only for the batteries, but also for searchlights and other tactical installations. The engineers insisted on redundancy for the essential power. As commercial power became more common and less expensive, baneries were commonly connected to the commercial electric power grid.

Guns (33 barbette and 83 disappearing carriages) were produced. More guns than carriages were manufactured to allow for spare tubes. After the turn of the century, increasing battleship armor threatened to make existing seacoast guns obsolete, especially as the increased range of naval guns meant they could strike from farther away. Since the muzzle velocity of the 12in. gun could not be increased without prohibitive bore erosion, the solution adopted was the 14in. gun, firing a 1,660 lb. projectile at a lower velocity, giving increased power while keeping bore erosion within manageable limits.

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American Coastal Defences 1885-1950 by Terrance McGovern, Bolling Smith, Peter Bull

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