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12-inch coast defense mortar United States: 1895 - 1945 305: 12-inch gun M1895 United States: 1895 - 1945 305: 30.5 cm SK L/50 gun Nazi Germany: 1909 - 1945 340: 340mm/45 Modèle 1912 gun France: World War II: 343: BL 13.5 inch naval gun Mk III disappearing gun United Kingdom: World War I - World War II 343: BL 13.5-inch Mk V railway gun United ...
16 in Mark III coastal defense gun on a proof mount at Aberdeen Proving Ground, Maryland. The second 16-inch (406 mm) gun was the United States Army 50 caliber Model 1919 (M1919). The first of these was deployed to Fort Michie , Great Gull Island , New York on a unique all-around-fire M1917 disappearing carriage, with elevation increased from ...
Coastal defence weapons throughout history were heavy naval guns or weapons based on them, often supplemented by lighter weapons. In the late 19th century separate batteries of coastal artillery replaced forts in some countries; in some areas, these became widely separated geographically through the mid-20th century as weapon ranges increased.
Seacoast defense was a major concern for the United States from its independence until World War II. Before airplanes, many of America's enemies could only reach it from the sea, making coastal forts an economical alternative to standing armies or a large navy. Substantial fortifications were built at key locations, especially protecting major ...
Craigslist headquarters in the Inner Sunset District of San Francisco prior to 2010. The site serves more than 20 billion [17] page views per month, putting it in 72nd place overall among websites worldwide and 11th place overall among websites in the United States (per Alexa.com on June 28, 2016), with more than 49.4 million unique monthly visitors in the United States alone (per Compete.com ...
After the Fall of France in 1940, the Army's Harbor Defense Board met to consider the future of coast defenses. The board decided to replace the turn-of-the-century defenses with new casemated 16-inch gun batteries with two guns each, typically one or two batteries per harbor defense command ; most previous 16-inch batteries were also to be ...
The Department of Defense announces contracts valued at $7 million or more each business day at 5 pm. [2] All defense contractors maintain CAGE (Commercial and Government Entity) Codes and are profiled in the System for Award Management (SAM). [3]
In 1925 the commands were renamed as Harbor Defense Commands, and in 1935 the Harbor Defenses of Eastern New York was almost entirely disarmed, although possibly retaining the minefield capability. The New York and Sandy Hook commands and the Harbor Defenses of Long Island Sound were unified as the Harbor Defenses of New York on 9 May 1942.