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Failure Tree
Fault tree analysis (FTA) is a type of failure analysis in which an undesired state of a system is examined. This analysis method is mainly used in safety engineering and reliability engineering to understand how systems can fail, to identify the best ways to reduce risk and to determine (or get a feeling for) event rates of a safety accident or a particular system level (functional) failure. FTA is used in the aerospace, nuclear power, chemical and process, pharmaceutical, petrochemical and other high-hazard industries; but is also used in fields as diverse as risk factor identification relating to social service system failure. FTA is also used in software engineering for debugging purposes and is closely related to cause-elimination technique used to detect bugs. In aerospace, the more general term "system failure condition" is used for the "undesired state" / top event of the fault tree. These conditions are classified by the severity of their effects. The most severe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault Tree
Fault tree analysis (FTA) is a type of failure analysis in which an undesired state of a system is examined. This analysis method is mainly used in safety engineering and reliability engineering to understand how systems can fail, to identify the best ways to reduce risk and to determine (or get a feeling for) event rates of a safety accident or a particular system level (functional) failure. FTA is used in the aerospace, nuclear power, chemical and process, pharmaceutical, petrochemical and other high-hazard industries; but is also used in fields as diverse as risk factor identification relating to social service system failure. FTA is also used in software engineering for debugging purposes and is closely related to cause-elimination technique used to detect bugs. In aerospace, the more general term "system failure condition" is used for the "undesired state" / top event of the fault tree. These conditions are classified by the severity of their effects. The most severe condi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avco
Avco Corporation is a subsidiary of Textron which operates Textron Systems Corporation and Lycoming. History The Aviation Corporation was formed on March 2, 1929, to prevent a takeover of CAM-24 airmail service operator Embry-Riddle Company by Clement Melville Keys, who planned on buying Curtiss aircraft rather than Sherman Fairchild's. With capital from Fairchild, George Hann, the Lehman Brothers, and W. A. Harriman, the holding company began acquiring small airlines. By the end of 1929, it had acquired interests in over 90 aviation-related companies. In January 1930, the board broke off the airlines into Colonial and Universal Air Lines. Universal Air Lines name was changed to American Airways, and later merged with Colonial to form American Airlines. The company was required to divest American Airlines in 1934 due to new rules for air mail contracts. The Aviation Corporation ranked 32nd among United States corporations in the value of World War II production contracts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines. Common examples of aircraft include airplanes, helicopters, airships (including blimps), gliders, paramotors, and hot air balloons. The human activity that surrounds aircraft is called ''aviation''. The science of aviation, including designing and building aircraft, is called '' aeronautics.'' Crewed aircraft are flown by an onboard pilot, but unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers. Aircraft may be classified by different criteria, such as lift type, aircraft propulsion, usage and others. History Flying model craft and stories of manned flight go back many centuries; however, the first manned ascent — and safe descent — in modern times took place by larger hot-air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transport Category
Transport category is a category of airworthiness applicable to large civil airplanes and large civil helicopters. Any aircraft's airworthiness category is shown on its airworthiness certificate. The name "transport category" is used in the US, Canada, Europe and many other countries. Concept of transport category airworthiness A principle behind transport category design standards is that any element in an airplane or helicopter can fail, but the risk of such a failure causing an accident should be acceptable under certain airworthiness requirements. Consequently, transport category airplanes and helicopters have duplicated elements wherever failure of one element is likely to cause an accident. For example, transport category airplanes must have at least two engines and be flown by at least two pilots. The loads on the wings and tailplanes are usually carried by multiple load paths. If one element of the primary structure fails due to metal fatigue or corrosion the remainin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airworthiness
In aviation, airworthiness is the measure of an aircraft's suitability for safe flight. Initial airworthiness is demonstrated by a certificate of airworthiness issued by the civil aviation authority in the state in which the aircraft is registered, and continuing airworthiness is achieved by performing the required maintenance actions. Certification is based on standards applied by civil aviation authorities. Interoperability is served when national benchmarks adopt standards from international civil and military organizations such as International Civil Aviation Organization (ICAO), European Aviation Safety Agency (EASA), NATO and European Defence Agency (EDA). In the U.S., Title 14, Code of Federal Regulations, Subchapter F, Part 91.7 states: "a) No person may operate an aircraft unless it is in an airworthy condition. b) The pilot in command of a civil aircraft is responsible for determining whether that aircraft is in condition for safe flight. The pilot in command shall d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Code Of Federal Regulations
In the law of the United States, the ''Code of Federal Regulations'' (''CFR'') is the codification of the general and permanent regulations promulgated by the executive departments and agencies of the federal government of the United States. The CFR is divided into 50 titles that represent broad areas subject to federal regulation. The CFR annual edition is published as a special issue of the '' Federal Register'' by the Office of the Federal Register (part of the National Archives and Records Administration) and the Government Publishing Office. In addition to this annual edition, the CFR is published online on the Electronic CFR (eCFR) website, which is updated daily. Background Congress frequently delegates authority to an executive branch agency to issue regulations to govern some sphere. These statutes are called "enabling legislation." Enabling legislation typically has two parts: a substantive scope (typically using language such as "The Secretary shall promulgate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of Defense
The United States Department of Defense (DoD, USDOD or DOD) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national security and the United States Armed Forces. The DoD is the largest employer in the world, with over 1.34 million active-duty service members (soldiers, marines, sailors, airmen, and guardians) as of June 2022. The DoD also maintains over 778,000 National Guard and reservists, and over 747,000 civilians bringing the total to over 2.87 million employees. Headquartered at the Pentagon in Arlington, Virginia, just outside Washington, D.C., the DoD's stated mission is to provide "the military forces needed to deter war and ensure our nation's security". The Department of Defense is headed by the secretary of defense, a cabinet-level head who reports directly to the president of the United States. Beneath the Department of Defense are th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defense Technical Information Center
The Defense Technical Information Center (DTIC, pronounced "Dee-tick") is the repository for research and engineering information for the United States Department of Defense (DoD). DTIC's services are available to DoD personnel, federal government personnel, federal contractors and selected academic institutions. The general public can access unclassified information through its public website. History The DTIC traces its history to the June 1945 formation of the Air Documents Research Center (ADRC), a joint effort of the US Army Air Force, US Navy and Royal Air Force to build a single collection of captured German aeronautical research, based in London. The ADRC was initially tasked with the sorting of the document collection into three broad groups; documents that would assist the war in the Pacific theater, documents of immediate intelligence interest to the United States or British forces and documents of interest for future research. With the ending of the war in 1945, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rome Laboratory
Rome Laboratory (Rome Air Development Center until 1991) is the US "Air Force 'superlab' for command, control, and communications" research and development and is responsible for planning and executing the USAF science and technology program. Organization Rome Lab includes or included the following entities: ;Information Directorate: The Information Directorate develops information technologies for air, space and ground systems, partnering with other federal agencies, allied nations, state and local governments, and more than 50 major universities. The Rome Laboratory Technical Library is located at 525 Brooks Road, Rome, NY. ;Sensors Directorate: Moved to Wright-Patterson AFB under the 1995 Base Realignment and Closure Commission Divisions and laboratories of the former Rome Air Development Center (RADC) included the Electronic Warfare Laboratory, High Power Laboratory, Photonics Laboratory, 1968 Electronics Laboratory (dedicated 25 October), RADC Systems Division, and the C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Army Materiel Command
U.S. Army Materiel Command (AMC) is the primary provider of materiel to the United States Army. The Command's mission includes the management of installations, as well as maintenance and parts distribution. It was established on 8 May 1962 and was activated on 1 August of that year as a major field command of the U.S. Army. Lieutenant General Frank S. Besson, Jr., who directed the implementation of the Department of Army study that recommended creation of a "materiel development and logistics command", served as its first commander. AMC operates depots; arsenals; ammunition plants; and other facilities, and maintains the Army's prepositioned stocks, both on land and afloat. The command is also the Department of Defense Executive Agent for the chemical weapons stockpile and for conventional ammunition. AMC is responsible within the United States Department of Defense for the business of selling Army equipment and services to allies of the United States and negotiates and impleme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picatinny Arsenal
The Picatinny Arsenal ( or ) is an American military research and manufacturing facility located on of land in Jefferson and Rockaway Township in Morris County, New Jersey, United States, encompassing Picatinny Lake and Lake Denmark. The Arsenal is the headquarters of the US Army Combat Capabilities Development Command Armaments Center. It is known for developing the ubiquitous Picatinny rail, as well as being the Army's center of expertise for small arms cartridge ammunition. (As written on Picatinny Arsenal's website) "Picatinny Arsenal Historical Overview On 6 September 1880, the War Department established the Dover Powder Depot. Four days later, it changed the name to Picatinny Powder Depot. In 1907, the Army altered the name to Picatinny Arsenal and established its first powder factory on the site." The facility was founded in 1880 as the ''Picatinny Powder Depot''. Soon afterward, the Navy acquired a portion of the arsenal to establish the Lake Denmark Powder Depot, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Civil Aviation
Civil aviation is one of two major categories of flying, representing all non-military and non-state aviation, both private and commercial. Most of the countries in the world are members of the International Civil Aviation Organization and work together to establish common Standards and Recommended Practices for civil aviation through that agency. Civil aviation includes three major categories: * Commercial air transport, including scheduled and non-scheduled passenger and cargo flights * Aerial work, in which an aircraft is used for specialized services such as agriculture, photography, surveying, search and rescue, etc. * General aviation (GA), including all other civil flights, private or commercial Although scheduled air transport is the larger operation in terms of passenger numbers, GA is larger in the number of flights (and flight hours, in the U.S.) In the U.S., GA carries 166 million passengers each year, more than any individual airline, though less than all the airl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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