New PDF release: American Coastal Defences 1885-1950

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 all started within the usa and its in a foreign country territories within the late-19th century, which benefited from the newest expertise and the rise in America's all over the world fiscal stature. This publication presents a concise creation to the layout, improvement and objective of yank coastal defenses within the 'modern interval' (1885-1950), a interval outlined by means of concrete, metal, and robust breech-loading rifles. filled with interval and modern day pictures of the fortifications, and written through a number one professional, it covers the emplacements, weaponry, gear, and other people that defended their state in occasions of significant swap and uncertainty.sharingmatrixletitbit zero

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Extra info for American Coastal Defences 1885-1950

Sample text

Four lOin. guns (11 barbette and 128 disappearing carriages), and one hundred sixty-one 12in. 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.

And 90mm guns - used fixed ammunition, joining the projectile with the propellant in a metal case resembling a large rifle cartridge, with a primer in its base. In the smaller calibers, these were qUick to load and helped seal the breech. Five-inch and larger guns were separately loaded. First the projectile and then the powder were rammed into the breech, the powder in a raw silk bag, tightly laced to the proper diameter. Propellant in the 19111 century was brown prismatic powder, a form of gunpowder.

In Long Island Sound, a new M1919 16in. gun was mounted on a one-of-a-kind disappearing carriage. However, the] 2in. barbette carriage was the pattern for the future, and batteries were constructed for 16in. guns on similar barbette carriages. Unlike tHe 12in. batteries, the new 16in. batteries carried the concept of dispersion to the extreme. Not only were the guns and crews unprotected, but even the ammunition magaZines were not bombproofed. Only two such dispersed batteries for the army·designed 16in.

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

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