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Brooke Rifle
The Brooke rifle was a type of rifled, muzzle-loading naval and coast defense gun designed by John Mercer Brooke, an officer in the Confederate States Navy. They were produced by plants in Richmond, Virginia, and Selma, Alabama, between 1861 and 1865 during the American Civil War. They served afloat on Confederate ships and ashore in coast defense batteries operated by the Confederate States Army. Design and production Brookes can be identified by the presence of at least one band of wrought iron at the breech and a rough-finished, tapering barrel. The barrels were made of cast iron for ease of manufacture, but one or more wrought iron bands was welded around the chamber to reinforce it against the high chamber pressure exerted when the gun fired. Because no southern foundries had the capacity to wrap the rifles in a single band like the Parrott design, a series of smaller bands were used, each usually thick and wide. All of Brooke's rifles used the same seven-groove rifling wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CSS Virginia
CSS ''Virginia'' was the first steam-powered ironclad warship built by the Confederate States Navy during the first year of the American Civil War; she was constructed as a casemate ironclad using the razéed (cut down) original lower hull and engines of the scuttled steam frigate . ''Virginia'' was one of the participants in the Battle of Hampton Roads, opposing the Union's in March 1862. The battle is chiefly significant in naval history as the first battle between ironclads. USS ''Merrimack'' becomes CSS ''Virginia'' When the Commonwealth of Virginia seceded from the Union in 1861, one of the important federal military bases threatened was Gosport Navy Yard (now Norfolk Naval Shipyard) in Portsmouth, Virginia. Accordingly, orders were sent to destroy the base rather than allow it to fall into Confederate hands. On the afternoon of 17 April, the day Virginia seceded, Engineer in Chief B. F. Isherwood managed to get the frigate's engines lit. However, the previous night se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trunnions
A trunnion (from Old French "''trognon''", trunk) is a cylindrical protrusion used as a mounting or pivoting point. First associated with cannons, they are an important military development. Alternatively, a trunnion is a shaft that positions and supports a tilting plate. This is a misnomer, as in reality it is a cradle for the true trunnion. In mechanical engineering (see the trunnion bearing section below), it is one part of a rotating joint where a shaft (the trunnion) is inserted into (and turns inside) a full or partial cylinder. Medieval history In a cannon, the trunnions are two projections cast just forward of the center of mass of the cannon and fixed to a two-wheeled movable gun carriage. As they allowed the muzzle to be raised and lowered easily, the integral casting of trunnions is seen by military historians as one of the most important advances in early field artillery. With the creation of larger and more powerful siege guns in the early 15th century, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CSS PeeDee
Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation of a document written in a markup language such as HTML or XML (including XML dialects such as SVG, MathML or XHTML). CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript. CSS is designed to enable the separation of content and presentation, including layout, colors, and fonts. This separation can improve content accessibility; provide more flexibility and control in the specification of presentation characteristics; enable multiple web pages to share formatting by specifying the relevant CSS in a separate .css file, which reduces complexity and repetition in the structural content; and enable the .css file to be cached to improve the page load speed between the pages that share the file and its formatting. Separation of formatting and content also makes it feasible to present the same markup page in different styles for different rendering methods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dahlgren Gun
Dahlgren guns were muzzle-loading naval artillery designed by Rear Admiral John A. Dahlgren USN (November 13, 1809 – July 12, 1870), mostly used in the period of the American Civil War. Dahlgren's design philosophy evolved from an accidental explosion in 1849 of a gun being tested for accuracy, killing a gunner. He believed a safer, more powerful naval cannon could be designed using more scientific design criteria. Dahlgren guns were designed with a smooth curved shape, equalizing strain and concentrating more weight of metal in the gun breech where the greatest pressure of expanding propellant gases needed to be met to keep the gun from bursting. Because of their rounded contours, Dahlgren guns were nicknamed "soda bottles", a shape which became their most identifiable characteristic. Dahlgren boat howitzers During the Mexican–American War the U.S. found itself lacking in light guns that could be fired from ships’ boats and landed to be used as light artillery in suppor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NH 76389 Brooke Single-Banded Rifled Gun
NH or Nh may refer to Businesses and organizations * All Nippon Airways (IATA code NH), formerly Nippon Helicopter, Japan's largest airline * National Agricultural Cooperative Federation, a South Korean cooperative federation also known by its Korean initials NH (''Nonghyup'') * New York, New Haven and Hartford Railroad * NH (media company), formerly ', a Dutch broadcasting company * NH Hotel Group, formerly ', a Spanish-based hotel chain * NH Media ("''Nam Hee''"), a South Korean entertainment agency * Nordsjælland Håndbold, a Danish handball team Places * New Hampshire, US (postal abbreviation NH) * New Haven, a city in Connecticut, United States * Noroton Heights, Connecticut, a town in Connecticut, United States * North Holland, a province in the Netherlands * Nowa Huta, a district of Kraków, Poland In science and technology * Nh (digraph), an orthographic concept * National Hose Thread, a threaded connection standard used on hose couplings * Nickel hydride, a type of rec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CSS Albemarle
CSS ''Albemarle'' was a steam-powered casemate ironclad ram of the Confederate Navy (and later the second ''Albemarle'' of the United States Navy), named for an estuary in North Carolina which was named for General George Monck, the first Duke of Albemarle and one of the original Carolina Lords Proprietor. Construction On 16 April 1862, the Confederate Navy Department, enthusiastic about the offensive potential of armored rams following the victory of their first ironclad ram (the rebuilt USS ''Merrimack'') over the wooden-hulled Union blockaders in Hampton Roads, Virginia, signed a contract with nineteen-year-old detached Confederate Lieutenant Gilbert Elliott of Elizabeth City, North Carolina; he was to oversee the construction of a smaller but still powerful gunboat to destroy the Union warships in the North Carolina sounds. These men-of-war had enabled Union troops to hold strategic positions that controlled eastern North Carolina. Since the terms of the agreement gave Ell ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CSS Tennessee (1863)
CSS ''Tennessee'' was a casemate ironclad ram built for the Confederate Navy during the American Civil War. She served as the flagship of Admiral Franklin Buchanan (who would later be captured in the same ship), commander of the Mobile Squadron, after her commissioning. She was captured in 1864 by the Union Navy during the Battle of Mobile Bay and then participated in the Union's subsequent Siege of Fort Morgan. ''Tennessee'' was decommissioned after the war and sold in 1867 for scrap. Design, description and construction ''Tennessee'' was built at Selma, Alabama, where she was commissioned on February 16, 1864. towed her to Mobile, where she was fitted out. ''Tennessee'' was laid down in October 1862, hull and other woodwork turned out by Henry D. Bassett, who launched her the following February, ready for towing to Mobile to be engined and armed. Her steam plant came from the steamer . Her casemate design differed materially from and , but iron plate was the same 2&nbs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smoothbores
A smoothbore weapon is one that has a barrel without rifling. Smoothbores range from handheld firearms to powerful tank guns and large artillery mortars. History Early firearms had smoothly bored barrels that fired projectiles without significant spin. To minimize inaccuracy-inducing tumbling during flight, their projectiles required an aerodynamically uniform shape, such as a sphere. However, surface imperfections on the projectile and/or the barrel will cause even a sphere to rotate randomly during flight, and the Magnus effect will curve it off the intended trajectory when spinning on any axis not parallel to the direction of travel. Rifling the bore surface with spiral grooves or polygonal valleys imparts a stabilizing gyroscopic spin to a projectile that prevents tumbling in flight. Not only does this more than counter Magnus-induced drift, but it allows a longer, more streamlined round with greater sectional density to be fired from the same caliber barrel, improvin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephen Mallory
Stephen Russell Mallory (1812 – November 9, 1873) was a Democratic senator from Florida from 1851 to the secession of his home state and the outbreak of the American Civil War. For much of that period, he was chairman of the Committee on Naval Affairs. It was a time of rapid naval reform, and he insisted that the ships of the US Navy should be as capable as those of Britain and France, the foremost navies in the world at that time. He also wrote a bill and guided it through Congress to provide for compulsory retirement of officers who did not meet the standards of the profession. Although he was not a leader in the secession movement, Mallory followed his state out of the Union. When the Confederate States of America was formed, he was named Secretary of the Navy in the administration of President Jefferson Davis. He held the position throughout the existence of the Confederacy. Because of indifference to naval matters by most others in the Confederacy, Mallory was able to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington Navy Yard
The Washington Navy Yard (WNY) is the former shipyard and ordnance plant of the United States Navy in Southeast Washington, D.C. It is the oldest shore establishment of the U.S. Navy. The Yard currently serves as a ceremonial and administrative center for the U.S. Navy, home to the Chief of Naval Operations, and is headquarters for the Naval Sea Systems Command, Naval Reactors, Naval Facilities Engineering Systems Command, Naval History and Heritage Command, the National Museum of the United States Navy, the U.S. Navy Judge Advocate General's Corps, Marine Corps Institute, the United States Navy Band, and other more classified facilities. In 1998, the yard was listed as a Superfund site due to environmental contamination. History The history of the yard can be divided into its military history and cultural and scientific history. Military The land was purchased under an Act of Congress on July 23, 1799. The Washington Navy Yard was established on October 2, 1799, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
