Battle Of Kansas
The Battle of Kansas (also known as the "Battle of Wichita"Airpower July 1981) was the nickname for a project to build, modify, and deliver large quantities of the world's most advanced bomber to the front-lines in Europe, and then to the Pacific, although because of delays in production, it was used only in the Pacific. The "battle" began as the first B-29 Superfortresses rolled off the production lines of the massive new Boeing factory on the prairie near Wichita, Kansas. The Boeing B-29 Superfortress was a significant advance in aviation technology, which entailed a multitude of problems to be resolved before it was suitable for combat operations. The B-29 was ordered into production before the Japanese attack on Pearl Harbor, with the first flight of the XB-29 prototype still over a year away. On 6 September 1941 the U.S. Army Air Forces placed its initial production contract for 250 B-29s, built mainly in Wichita. Background In early 1941 the Boeing Wichita factory (which ...
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B-29proda
B- may refer to: *B-, a blood type *B- (grade), an academic grade *B − L In particle physics, ''B'' − ''L'' (pronounced "bee minus ell") is a quantum number which is the difference between the baryon number () and the lepton number () of a quantum system. Details This quantum number is the charge of ...

Colonel
Colonel ( ; abbreviated as Col., Col, or COL) is a senior military Officer (armed forces), officer rank used in many countries. It is also used in some police forces and paramilitary organizations. In the 17th, 18th, and 19th centuries, a colonel was typically in charge of a regiment in an army. Modern usage varies greatly, and in some cases, the term is used as an Colonel (title), honorific title that may have no direct relationship to military. In some smaller military forces, such as those of Monaco or the Holy See, Vatican, colonel is the highest Military rank, rank. Equivalent naval ranks may be called Captain (naval), captain or ship-of-the-line captain. In the Commonwealth of Nations, Commonwealth's air force ranking system, the equivalent rank is group captain. History and origins By the end of the late medieval period, a group of "companies" was referred to as a "column" of an army. According to Raymond Oliver, , the Spanish began explicitly reorganizing part of thei ...
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Poppet Valve
A poppet valve (also sometimes called mushroom valve) is a valve typically used to control the timing and quantity of petrol (gas) or vapour flow into or out of an engine, but with many other applications. It consists of a hole or open-ended chamber, usually round or oval in cross-section, and a plug, usually a disk shape on the end of a shaft known as a valve stem. The working end of this plug, the valve face, is typically ground at a 45° bevel to seal against a corresponding valve seat ground into the rim of the chamber being sealed. The shaft travels through a valve guide to maintain its alignment. A pressure differential on either side of the valve can assist or impair its performance. In exhaust applications higher pressure against the valve helps to seal it, and in intake applications lower pressure helps open it. Etymology The word poppet shares etymology with "puppet": it is from the Middle English ''popet'' ("youth" or "doll"), from Middle French ''poupette'', whic ...
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Subcontractor
A subcontractor is a person or business which undertakes to perform part or all of the obligations of another's contract, and a subcontract is a contract which assigns part of an existing contract to a subcontractor. A general contractor, prime contractor or main contractor may hire subcontractors to perform specific tasks as part of an overall project to reduce costs or to mitigate project risks. In employing subcontractors, the general contractor hopes to receive the same or better service than the general contractor could have provided by itself, at lower overall risk. The European Union has recognised the need to make provision for sub-contracting in its rules on public procurement, as arrangements for sub-contracting can support the EU's drive to involve more small and medium-sized undertakings in the provision of goods and services for the public sector. Definition United States public acquisition regulations contain a number of distinct definitions of "subcontract" an ...
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Tupolev Tu-4
The Tupolev Tu-4 (; NATO reporting name: Bull) is a piston-engined Soviet Union, Soviet strategic bomber that served the Soviet Air Force from the late 1940s to the mid-1960s. The aircraft was a copy of the American Boeing B-29 Superfortress, having been Reverse engineering, reverse-engineered from seized aircraft that had made emergency landings in the USSR. Design and development Toward the end of World War II, the Soviet Union saw the need for a strategic bombing capability similar to that of the Western Allies. The Soviet VVS air arm had the locally designed Petlyakov Pe-8 four-engined "heavy" in service at the start of the war, but only 93 had been built by the end of the war and the type had become obsolete. The U.S. regularly conducted Air raids on Japan, bombing raids on Japan from distant Pacific forward bases using B-29 Superfortresses. Joseph Stalin ordered the development of a comparable bomber. The U.S. twice refused to supply the Soviet Union with B-29s under Lend ...
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Vladivostok
Vladivostok ( ; , ) is the largest city and the administrative center of Primorsky Krai and the capital of the Far Eastern Federal District of Russia. It is located around the Zolotoy Rog, Golden Horn Bay on the Sea of Japan, covering an area of , with a population of 603,519 residents Vladivostok is the second-largest city in the Far Eastern Federal District, as well as the Russian Far East, after Khabarovsk. It is located approximately from the China–Russia border and from the North Korea–Russia border. What is now Vladivostok was part of Outer Manchuria. Shortly after the signing of the Treaty of Aigun between Qing China and the Russian Empire and affirmed by the Convention of Peking – from which it is also known as the Amur Annexation – the city was founded as a Russian military outpost on July 2, 1860. In 1872, the main Russian naval base on the Pacific Ocean was transferred to the city, stimulating its growth. In 1914 the city experienced rapid growth economical ...
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XX Bomber Command
The XX Bomber Command was a United States Army Air Forces bomber formation. Its last assignment was with Twentieth Air Force, based on Okinawa. It was inactivated on 16 July 1945. History The idea of basing Boeing B-29 Superfortresses in China first surfaced at the Casablanca Conference in January 1943. While planners assessed this option, the Anglo-American Combined Chiefs of Staff, meeting in Quebec in August, authorized a central Pacific drive that included the seizure of the Marianas. Not only were the Marianas closer to Tokyo, but once in Allied hands they could be supplied and defended more easily than other sites. In September, Combined Chiefs of Staff planners concluded that B-29s in China would be plagued by logistical problems. However, President Franklin D. Roosevelt decided in favor of the China bases because he was impatient to bomb Japan and wished to bolster the Chinese war effort. At the Sextant Conference in Cairo at the end of the year, he promised Chi ...
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B-29prodb
B- may refer to: *B-, a blood type *B- (grade), an academic grade *B − L In particle physics, ''B'' − ''L'' (pronounced "bee minus ell") is a quantum number which is the difference between the baryon number () and the lepton number () of a quantum system. Details This quantum number is the charge of ...

CG-4 Waco
The Waco CG-4 was the most widely used American troop/cargo military glider of World War II. It was designated the CG-4A by the United States Army Air Forces, and given the service name Hadrian (after the Roman emperor) by the British. The glider was designed by the Waco Aircraft Company. Flight testing began in May 1942. More than 13,900 CG-4As were eventually delivered. Design and development The CG-4A was constructed of fabric-covered wood and metal and was crewed by a pilot and copilot. It had two fixed mainwheels and a tailwheel. The CG-4A could carry 13 troops and their equipment. Cargo loads could be a -ton truck (i.e. a Jeep), a 75 mm howitzer, or a -ton trailer, loaded through the upward-hinged nose section. Douglas C-47 Skytrains were usually used as tow aircraft. A few Curtiss C-46 Commando tugs were used during and after the Operation Plunder crossing of the Rhine in March 1945. The USAAF CG-4A tow line was nylon, long. The CG-4A pickup line was diamet ...
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Cannon Plug
A cannon is a large-caliber gun classified as a type of artillery, which usually launches a projectile using explosive chemical propellant. Gunpowder ("black powder") was the primary propellant before the invention of smokeless powder during the late 19th century. Cannons vary in gauge, effective range, mobility, rate of fire, angle of fire and firepower; different forms of cannon combine and balance these attributes in varying degrees, depending on their intended use on the battlefield. A cannon is a type of heavy artillery weapon. The word ''cannon'' is derived from several languages, in which the original definition can usually be translated as ''tube'', ''cane'', or ''reed''. The earliest known depiction of cannons may have appeared in Song dynasty China as early as the 12th century; however, solid archaeological and documentary evidence of cannons do not appear until the 13th century. In 1288, Yuan dynasty troops are recorded to have used hand cannons in combat, and the ...
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Analog Computer
An analog computer or analogue computer is a type of computation machine (computer) that uses physical phenomena such as Electrical network, electrical, Mechanics, mechanical, or Hydraulics, hydraulic quantities behaving according to the mathematical principles in question (''analog signals'') to Scientific modelling, model the problem being solved. In contrast, digital computers represent varying quantities symbolically and by discrete values of both time and amplitude (digital signals). Analog computers can have a very wide range of complexity. Slide rules and nomograms are the simplest, while naval gunfire control computers and large hybrid digital/analog computers were among the most complicated. Complex mechanisms for process control and protective relays used analog computation to perform control and protective functions. Analog computers were widely used in scientific and industrial applications even after the advent of digital computers, because at the time they were ...
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Marietta, Georgia
Marietta is a city in and the county seat of Cobb County, Georgia, United States. At the 2020 census, the city had a population of 60,972. The 2019 estimate was 60,867, making it one of Atlanta's largest suburbs. Marietta is the fourth largest of the principal cities by population of the Atlanta metropolitan area. History Etymology The origin of the name is uncertain. It is believed that the city was named for Mary Cobb, the wife of the U.S. Senator and Superior Court judge Thomas Willis Cobb. The county is named for Cobb. Early settlers Homes were built by early settlers near the Cherokee town of Big Shanty (now Kennesaw) before 1824. The first plot was laid out in 1833. Like most towns, Marietta had a square ( Marietta Square) in the center with a courthouse. The Georgia General Assembly legally recognized the community on December 19, 1834. Built in 1838, Oakton House is the oldest continuously occupied residence in Marietta. The original barn, milk house, smokehouse ...
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