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Panama Mount
The Panama Mount is a form of gun mount for fixed coastal artillery developed by the U.S. Army in Panama during the 1920s. Widely used during the buildup to and during World War II by the United States military, it was typically equipped with a rifled gun. The term Panama mount is often incorrectly used to describe other gun mounts with similar layouts and/or purpose. Description The Panama mount was constructed as needed to provide 180, 270, and 360 degrees of traverse, with its gun mounted on a central diameter concrete pier surrounded by a full or partial approximately concrete-embedded steel rail. Concrete beams connected the two for alignment and stability. Originally the guns were traversed by pivoting their trailing arms around the steel ring with prybars. Later installations added a geared steel ring inside the rail. The principle weapon employed was the Canon de 155mm GPF, the primary gun of the United States Army Coast Artillery Corps' tractor-drawn mobi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sagamore Hill Gun Crew
Sagamore may refer to: * Sachem or "Sagamore", denoting the head of some Native American tribes * Wampatuck (died 1669), Native American leader known as "Josiah Sagamore" to English settlers Places in the United States * Sagamore, Massachusetts, a village located in the town of Bourne * Sagamore, Pennsylvania (other) * Sagamore Bridge, crossing the Cape Cod Canal in Massachusetts, US * Sagamore Camp, one of the "Great Camps" in the Adirondack Mountains in upstate New York * Sagamore Hill, the home of President Theodore Roosevelt in Oyster Bay, New York * Sagamore Hill Military Reservation, a former military reservation protecting the Cape Cod Canal * The Sagamore, grand Victorian hotel on Lake George, New York Ships * ''Sagamore'' (barge), an 1892 whaleback barge * ''Sagamore'' (ship), a list of ships * USS ''Sagamore'', a list of U.S. Navy ships Other uses * Sagamore Honor Society, an honor society at Washburn University * ''The Sagamore'' (Brookline High S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Florida
Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic Ocean to the east, the Straits of Florida to the south, and The Bahamas to the southeast. About two-thirds of Florida occupies a peninsula between the Gulf of Mexico and the Atlantic Ocean. It has the List of U.S. states by coastline, longest coastline in the contiguous United States, spanning approximately , not including its many barrier islands. It is the only state that borders both the Gulf of Mexico and the Atlantic Ocean. With a population of over 23 million, it is the List of U.S. states and territories by population, third-most populous state in the United States and ranks List of states and territories of the United States by population density, seventh in population density as of 2020. Florida spans , ranking List of U.S. states ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of U
A list is a set of discrete items of information collected and set forth in some format for utility, entertainment, or other purposes. A list may be memorialized in any number of ways, including existing only in the mind of the list-maker, but lists are frequently written down on paper, or maintained electronically. Lists are "most frequently a tool", and "one does not ''read'' but only ''uses'' a list: one looks up the relevant information in it, but usually does not need to deal with it as a whole". Lucie Doležalová,The Potential and Limitations of Studying Lists, in Lucie Doležalová, ed., ''The Charm of a List: From the Sumerians to Computerised Data Processing'' (2009). Purpose It has been observed that, with a few exceptions, "the scholarship on lists remains fragmented". David Wallechinsky, a co-author of '' The Book of Lists'', described the attraction of lists as being "because we live in an era of overstimulation, especially in terms of information, and lists help ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seacoast Defense In The United States
Seacoast defense was a major concern for the United States from its independence through 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 harbors. Seacoast defense also included submarine minefields, nets and booms, ships, and, later, airplanes. The U.S. Army Corps of Engineers played the central role in constructing fixed defenses, but all of the armed forces participated. Designs evolved and became obsolete with changes in the technology available to both the attacking forces and the defenders. The evolution of the U.S. seacoast defense system is generally identified among several "systems", which are somewhat defined by the styles used, but more so by the events or trends which periodically stimulated new funding and construction. The division of the early forts into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disappearing Carriage
A disappearing gun, a gun mounted on a ''disappearing carriage'', is an obsolete type of artillery which enabled a gun to hide from direct fire and observation. The overwhelming majority of carriage designs enabled the gun to rotate backwards and down behind a parapet, or into a pit protected by a wall, after it was fired; a small number were simply barbette mounts on a retractable platform. Either way, retraction lowered the gun from view and direct fire by the enemy while it was being reloaded. It also made reloading easier, since it lowered the breech to a level just above the loading platform, and shells could be rolled right up to the open breech for loading and ramming. Other benefits over non-disappearing types were a higher rate of repetitive fire and less fatigue for the gun crew. Some disappearing carriages were complicated mechanisms, protection from aircraft observation and attack was difficult, and almost all restricted the elevation of the gun. With a fe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barbette
Barbettes are several types of gun emplacement in terrestrial fortifications or on naval ships. In recent naval usage, a barbette is a protective circular armour support for a heavy gun turret. This evolved from earlier forms of gun protection that eventually led to the pre-dreadnought. The name ''barbette'' ultimately comes from fortification: it originally meant a raised platform or mound, as in the French phrase ''en barbette'', which refers to the practice of firing a cannon over a parapet rather than through an embrasure in a fortification's casemate. The former gives better angles of fire but less protection than the latter. The disappearing gun was a variation on the barbette gun; it consisted of a heavy gun on a carriage that would retract behind a parapet or into a gunpit for reloading. Barbettes were primarily used in coastal defences, but saw some use in a handful of warships, and some inland fortifications. The term is also used for certain aircraft gun mounts. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peron Battery
The Peron Battery, at Cape Peron, was the southernmost of the Fremantle Fortress coastal defence batteries in Western Australia. Also referred to as K Heavy Battery, it was established in January 1943 and, like the Challenger Battery on near-by Garden Island (Western Australia), Garden Island, it was equipped with two mobile Canon de 155mm GPF, 155 mm guns. Additionally, it also operated two QF 18-pounder gun, 18-pounder guns which were withdrawn once the Collie Secondary Battery became operational on Garden Island. The duty of the main guns was to cover the southern access to Cockburn Sound while the 18-pounder guns protected the a boom net which spanned between Cape Peron and Garden Island. The main battery was withdrawn again in December 1944 but the observation post and one of the Panama mounts of the Peron Battery are still preserved and accessible. The Peron Battery became Western Australian State Register of Heritage Places listed on 13 October 2019. Background Mili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Henlopen State Park
Cape Henlopen State Park is a Delaware state park on on Cape Henlopen in Sussex County, Delaware, in the United States. William Penn made the beaches of Cape Henlopen one of the first public lands established in what has become the United States in 1682 with the declaration that Cape Henlopen would be for "the usage of the citizens of Lewes and Sussex County." Cape Henlopen State Park has a 24-hour and year-round fishing pier as well as campgrounds. The remainder of the park is only open from sunrise to sunset, and includes a bathhouse on the Atlantic Ocean, an area for surf-fishing, a disc golf course, and bicycle and walking paths. The beach at Herring Point is a popular surfing spot. The park is a stop on Delaware's Coastal Heritage Greenway. History Cape Henlopen, on Delaware Bay, has long been a public use area although it did not officially become a Delaware state park until 1964. William Penn, the founder of Pennsylvania and early leader of Delaware, decreed that Cap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort Miles
Fort Miles was a United States Army World War II installation located on Cape Henlopen near Lewes, Delaware. Although funds to build the fort were approved in 1934, it was 1938 before construction began on the fort. On 3 June 1941 it was named for Lieutenant General Nelson A. Miles. As the primary fort of the Harbor Defenses of the Delaware, it was built to defend Delaware Bay and the Delaware River and to protect domestic shipping from enemy fire between Cape May and Cape Henlopen, particularly from the German surface fleet. The fort also operated a controlled underwater minefield to prevent ships entering the Delaware River estuary. One of these mines was revealed following 2016 Hurricane Hermine by local Cape Henlopen state park staff. The sea mine and anchor were archaeologically conserved. By 1950 the Army's coast defense role had been transferred to the Navy and coastal artillery defenses were obsolete with the fort becoming surplus. The Army continued to use porti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska
Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the northernmost, westernmost, and easternmost (the Aleutian Islands cross the 180th meridian into the eastern hemisphere) state in the United States. It borders the Canadian territory of Yukon and the province of British Columbia to the east. It shares a western maritime border, in the Bering Strait, with Russia's Chukotka Autonomous Okrug. The Chukchi and Beaufort Seas of the Arctic Ocean lie to the north, and the Pacific Ocean lies to the south. Technically, it is a semi-exclave of the U.S., and is the largest exclave in the world. Alaska is the largest U.S. state by area, comprising more total area than the following three largest states of Texas, California, and Montana combined, and is the seventh-largest subnational division i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an international border with the Mexico, Mexican state of Baja California to the south. With almost 40million residents across an area of , it is the List of states and territories of the United States by population, largest state by population and List of U.S. states and territories by area, third-largest by area. Prior to European colonization of the Americas, European colonization, California was one of the most culturally and linguistically diverse areas in pre-Columbian North America. European exploration in the 16th and 17th centuries led to the colonization by the Spanish Empire. The area became a part of Mexico in 1821, following Mexican War of Independence, its successful war for independence, but Mexican Cession, was ceded to the U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coastal Artillery
Coastal artillery is the branch of the armed forces concerned with operating anti-ship artillery or fixed gun batteries in coastal fortifications. From the Middle Ages until World War II, coastal artillery and naval artillery in the form of cannons were highly important to military affairs and generally represented the areas of highest technology and capital cost among materiel. The advent of 20th-century technologies, especially military aviation, naval aviation, jet aircraft, and guided missiles, reduced the primacy of cannons, battleships, and coastal artillery. In countries where coastal artillery has not been disbanded, these forces have acquired amphibious capabilities. In littoral warfare, mobile coastal artillery armed with surface-to-surface missiles can still be used to deny the use of sea lanes. It was long held as a rule of thumb that one shore-based gun equaled three naval guns of the same caliber, due to the steadiness of the coastal gun which allowed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
