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Medium Tank M1922
The Medium Tank M1922 was an inter-war period medium tank built in the United States. It was largely a variant of the Medium Tank M1921, with some changes to use the same track suspension system that had been developed for the Medium Mark D. The M1922 was initially the second tank in an order for two M1921s placed in April 1920 but the order was changed to one M1921 to the original design and one using the cable track system Specifications Like the M1921, the M1922 was essentially a box-shaped tank with a mildly sloped front. It had a round turret, with a 57mm QF Hotchkiss gun carrying 146 rounds. The tank's suspension was of the flexible type, with each track shoe wide. The top speed was . the engine is a Murray and Tregurtha, Marine, 6-cylinder providing 195 hp at 1,250 rpm. it weight 25.5 Short tons. The armour was the same as the M1921. ranging from to . The cable suspension system, similar to that of the earlier British Medium Mark D, was superior to other tanks of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medium Tank
A medium tank is a classification of tanks, particularly prevalent during World War II which represented a compromise between the mobility oriented light tanks and the armour and armament oriented heavy tanks. A medium tank's classification is not actually based on weight, but off of tactical usage and intended purpose; for instance the German Panzerkampfwagen V Panther medium tank has a mass similar to contemporary Allied heavy tanks. The most widely produced, cost effective and successful tanks of World War II (the German Panzer IV, the Soviet T-34, and the American M4 Sherman) were all medium tank designs. Many of the medium tank lines became what are called main battle tanks in most countries. History The first tanks to carry the name "Medium" appeared in the First World War with the British Medium Mark A Whippet. It was smaller, lighter and faster than the British heavy tanks of the time and only carried machine guns. The medium tank doctrine came into use in the interwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Army Ordnance Department
The United States Army Ordnance Corps, formerly the United States Army Ordnance Department, is a sustainment branch of the United States Army, headquartered at Fort Lee, Virginia. The broad mission of the Ordnance Corps is to supply Army combat units with weapons and ammunition, including at times their procurement and maintenance. Along with the Quartermaster Corps and Transportation Corps, it forms a critical component of the U.S. Army logistics system. The U.S. Army Ordnance Corps mission is to support the development, production, acquisition, and sustainment of weapon systems, ammunition, missiles, electronics, and ground mobility materiel during peace and war to provide combat power to the U.S. Army. The officer in charge of the branch for doctrine, training, and professional development purposes is the Chief of Ordnance. The current Chief of Ordnance is Brigadier General Michael B. Lalor. History Colonial period to War of Independence During the colonial era in Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Island Arsenal
The Rock Island Arsenal comprises , located on Arsenal Island, originally known as Rock Island, on the Mississippi River between the cities of Davenport, Iowa, and Rock Island, Illinois. It lies within the state of Illinois. Rock Island was previously used as the summer camp site for Sauk Native Americans, and the dispute over tribal ownership led to the Black Hawk War of 1832, after the primary leader of the Sauk, Black Hawk. It is now home of First Army headquarters, and the US Army's Center of Excellence for Additive Manufacturing. ASA(ALT)br>Assistant Secretary of the Army (Acquisition, Logistics and Technology) (Friday, October 4, 2019) Army Advanced Manufacturing InitiativeRyan McCarthy (18 September 2019) Army Directive 2019-29 (Enabling Readiness and Modernization Through Advanced Manufacturing)This directive is to be implemented by Materiel Command and Futures Command; the proponent will be ASA(ALT)Mark Esper (07 Dec 2018) Army Directive 2018-26 (Enabling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gasoline
Gasoline (; ) or petrol (; ) (see ) is a transparent, petroleum-derived flammable liquid that is used primarily as a fuel in most spark-ignited internal combustion engines (also known as petrol engines). It consists mostly of organic compounds obtained by the fractional distillation of petroleum, enhanced with a variety of additives. On average, U.S. refineries produce, from a barrel of crude oil, about 19 to 20 gallons of gasoline; 11 to 13 gallons of distillate fuel (most of which is sold as diesel fuel); and 3 to 4 gallons of jet fuel. The product ratio depends on the processing in an oil refinery and the crude oil assay. A barrel of oil is defined as holding 42 US gallons, which is about 159 liters or 35 imperial gallons. The characteristic of a particular gasoline blend to resist igniting too early (which causes knocking and reduces efficiency in reciprocating engines) is measured by its octane rating, which is produced in several grades. Tetraethyl lead and o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medium Tank M1921
The Medium Tank M1921 was a medium tank built in the United States in the inter-war period. In design, it was similar to earlier WW1 era tanks. United States Army engineers worked on the design of the tank, with some influence from British designs of the period, and from the earlier war experience. One example was produced. The tank was an early example of a turreted US tank, less usual at the time, with the turret housing the main gun, with the tank also possessing two machine guns for defence. Development The United States Army developed the tank with the idea that the US could produce a locally produced tank, and not rely on British or French technology, who were some of the main producers and exporters of tanks at the time. The tank was produced at the Rock Island Arsenal. The biggest problem was the engine, which was meant to provide horsepower of at 1,200 rpm, but in fact generated less than that. The engine was later replaced with a Liberty L-12 engine, and then a later a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medium Mark D
Medium Mark D was a British tank developed at the end of the First World War. It was envisaged as a vehicle to be used in "Plan 1919" an offensive on the Western Front which would use large numbers of heavy and medium tanks to break through the German defences, destroy lines of communication crippling the German army and thus end the war. The Armistice ended the war in 1918 and it would never be tested in combat but development continued for the post-war needs of the British Army. The unusual suspension proved problematic and the earlier tanks were replaced by a Vickers design - the Medium Mark I - in the 1920s It should not be confused with export Vickers Medium Mark D tank, built in one unit for Ireland in 1929. Development J F C Fuller's plan 1919 (circulated in mid-1918) was for the heavy tanks to engage and pin the German troops allowing faster tanks to penetrate the flanks and encircle the enemy isolating them from the chain of command precipitating a breakdown of morale ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordnance Museum
Ordnance may refer to: Military and defense *Materiel in military logistics, including weapons, ammunition, vehicles, and maintenance tools and equipment. **The military branch responsible for supplying and developing these items, e.g., the United States Army Ordnance Corps *Artillery, often in a formal name, e.g., "Ordnance Survey". *Artillery shells, specifically unexploded ordnance. *Aircraft ordnance, weapons carried by and used by an aircraft. Places * Ordnance, Oregon, a former community near the Umatilla Chemical Depot * Ordnance Island, formerly a Royal Army Ordnance Corps depot, in St. George's Town, Bermuda Maps-related *Ordnance datum (from use in ballistics), a vertical datum used as the basis for deriving altitudes on maps *Ordnance Survey, the national mapping agency for Great Britain See also *Ordnance Corps (other) Ordnance Corps may refer to: *Royal Australian Army Ordnance Corps, the Corps within the Australian Army concerned with explosives and s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort Moore
Fort Moore was the second of two historic U.S. Military Forts in Los Angeles, California, during the Mexican–American War. It lay straight above the junction of the Hollywood Freeway and Broadway, on an historic hill that once sheltered the old Plaza. The landmark hill took its name, Fort Hill, from the first fort, and the hill afforded sweeping views of the old adobe town and the vineyards in the swale of the Los Angeles River. Fort Hill was a spur of the ridge that runs from the Quarry Hills (Elysian Park) southward to Beaudry’s Bunker Hill; it originally stretched east between 1st Street and Ord Street. In old photographs, it forms a backdrop just behind the Plaza Church and square. By 1949, what was left of the hill under the fort was cut down when the Hollywood Freeway was put through.However, not all the hill was bulldozed, but some of it has been left west of Hill Street and north of the freeway, although at a fraction of its former height. The fort is now mem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Year Of Introduction Missing
A year or annus is the orbital period of a planetary body, for example, the Earth, moving in its orbit around the Sun. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by change in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar regions around the planet, four seasons are generally recognized: spring, summer, autumn and winter. In tropical and subtropical regions, several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual wet and dry seasons are recognized and tracked. A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar. The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars. For the Gregorian calendar, the average length of the calendar year (the mean ye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interwar Tanks Of The United States
In the history of the 20th century, the interwar period lasted from 11 November 1918 to 1 September 1939 (20 years, 9 months, 21 days), the end of the First World War to the beginning of the Second World War. The interwar period was relatively short, yet featured many significant social, political, and economic changes throughout the world. Petroleum-based energy production and associated mechanisation led to the prosperous Roaring Twenties, a time of both social mobility and economic mobility for the middle class. Automobiles, electric lighting, radio, and more became common among populations in the developed world. The indulgences of the era subsequently were followed by the Great Depression, an unprecedented worldwide economic downturn that severely damaged many of the world's largest economies. Politically, the era coincided with the rise of communism, starting in Russia with the October Revolution and Russian Civil War, at the end of World War I, and ended with the rise o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medium Tanks Of The United States
Medium may refer to: Science and technology Aviation *Medium bomber, a class of war plane * Tecma Medium, a French hang glider design Communication * Media (communication), tools used to store and deliver information or data * Medium of instruction, a language or other tool used to educate, train, or instruct Wave physics * Transmission medium, in physics and telecommunications, any material substance which can propagate waves or energy ** Active laser medium (also called gain medium or lasing medium), a quantum system that allows amplification of power (gain) of waves passing through (usually by stimulated emission) ** Optical medium, in physics, a material through with electromagnetic waves propagate * Excitable medium, a non-linear dynamic system which has the capacity to propagate a wave Other uses in science and technology * Data storage medium, a storage container in computing * Growth medium (or culture medium), in biotechnology, an object in which microorganisms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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