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Paradise Airlines Flight 901A
Paradise Airlines Flight 901A was a scheduled passenger flight from San Jose, California, to South Lake Tahoe, California. On March1, 1964, the Lockheed L-049 Constellation serving the flight crashed near Genoa Peak, on the eastern side of Lake Tahoe, killing all 85 aboard and destroying the plane. An investigation concluded that the primary cause of the accident was the pilot's decision to attempt a visual landing approach in adverse weather. After aborting the landing attempt, the pilot lost awareness of his location as he flew below the minimum safe altitude in mountainous terrain. He likely tried to fly through a low mountain pass in an attempt to divert to the airport in Reno, Nevada, and crashed into the left shoulder of the pass. At the time, it was the second-worst single-plane crash in United States history, and remains the worst accident involving the Lockheed L-049 Constellation. The airline involved, Paradise Airlines, was a two-year-old company that opera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevada
Nevada ( ; ) is a state in the Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the 7th-most extensive, the 32nd-most populous, and the 9th-least densely populated of the U.S. states. Nearly three-quarters of Nevada's people live in Clark County, which contains the Las Vegas–Paradise metropolitan area, including three of the state's four largest incorporated cities. Nevada's capital is Carson City. Las Vegas is the largest city in the state. Nevada is officially known as the "Silver State" because of the importance of silver to its history and economy. It is also known as the "Battle Born State" because it achieved statehood during the Civil War (the words "Battle Born" also appear on its state flag); as the " Sagebrush State", for the native plant of the same name; and as the " Sage-hen State". The name means "snowy" in Spanish, re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visibility
The visibility is the measure of the distance at which an object or light can be clearly discerned. In meteorology it depends on the transparency of the surrounding air and as such, it is unchanging no matter the ambient light level or time of day. It is reported within surface weather observations and METAR code either in meters or statute miles, depending upon the country. Visibility affects all forms of traffic: roads, sailing and aviation. The geometric range of vision is limited by the curvature of the earth and depends on the eye level and the height of the object being viewed. In geodesy, the atmospheric refraction must be taken into account when calculating geodetic visibility. Meteorological visibility Definition ICAO Annex 3 ''Meteorological Service for International Air Navigation'' contains the following definitions and note: :a) the greatest distance at which a black object of suitable dimensions, situated near the ground, can be seen and recognized when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Operator's Certificate
An air operator's certificate (AOC) is the approval granted by a civil aviation authority (CAA) to an aircraft operator to allow it to use aircraft for commercial purposes. This requires the operator to have personnel, assets, and system in place to ensure the safety of its employees, and the general public. The certificate will list the aircraft types, and registrations to be used, for what purpose and in what area – specific airports or geographic region. Categories AOCs can be granted for one or more of the following activities: *Aerial advertising *Aerial photography * Aerial spotting *Aerial surveying *Air ambulance or aeromedical *Charter (low capacity and high capacity) *Firefighting * Flight training *Regular public transport (RPT) (low capacity and high capacity) Low capacity operations is when operating aircraft with under 38 passenger seats, high capacity is above that. Requirements The requirements for obtaining an AOC vary from country to country, but are genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Protection System
In aeronautics, ice protection systems keep atmospheric moisture from accumulating on aircraft surfaces, such as wings, propellers, rotor blades, engine intakes, and environmental control intakes. Ice buildup can change the shape of airfoils and flight control surfaces, degrading control and handling characteristics as well as performance. An anti-icing, de-icing, or ice protection system either prevents formation of ice, or enables the aircraft to shed the ice before it becomes dangerous. Effects of icing Aircraft icing increases weight and drag, decreases lift, and can decrease thrust. Ice reduces engine power by blocking air intakes. When ice builds up by freezing upon impact or freezing as runoff, it changes the aerodynamics of the surface by modifying the shape and the smoothness of the surface which increases drag, and decreases wing lift or propeller thrust. Both a decrease in lift on the wing due to an altered airfoil shape, and the increase in weight from the ice lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-icing System
Deicing is the process of removing snow, ice or frost from a surface. Anti-icing is the application of chemicals that not only deice but also remain on a surface and continue to delay the reformation of ice for a certain period of time, or prevent adhesion of ice to make mechanical removal easier. Deicing can be accomplished by mechanical methods (scraping, pushing); through the application of heat; by use of dry or liquid chemicals designed to lower the freezing point of water (various salts or brines, alcohols, glycols); or by a combination of these different techniques. Application areas Roadways In 2013, an estimated 14 million tons of salt were used for deicing roads in North America. Deicing of roads has traditionally been done with salt, spread by snowplows or dump trucks designed to spread it, often mixed with sand and gravel, on slick roads. Sodium chloride (rock salt) is normally used, as it is inexpensive and readily available in large quantities. However, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Army
The United States Army (USA) is the land warfare, land military branch, service branch of the United States Armed Forces. It is one of the eight Uniformed services of the United States, U.S. uniformed services, and is designated as the Army of the United States in the United States Constitution, U.S. Constitution.Article II, section 2, clause 1 of the United States Constitution (1789). See alsTitle 10, Subtitle B, Chapter 301, Section 3001 The oldest and most senior branch of the U.S. military in order of precedence, the modern U.S. Army has its roots in the Continental Army, which was formed 14 June 1775 to fight the American Revolutionary War (1775–1783)—before the United States was established as a country. After the Revolutionary War, the Congress of the Confederation created the United States Army on 3 June 1784 to replace the disbanded Continental Army.Library of CongressJournals of the Continental Congress, Volume 27/ref> The United States Army considers itself to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Bureau Of Investigation
The Federal Bureau of Investigation (FBI) is the domestic intelligence and security service of the United States and its principal federal law enforcement agency. Operating under the jurisdiction of the United States Department of Justice, the FBI is also a member of the U.S. Intelligence Community and reports to both the Attorney General and the Director of National Intelligence. A leading U.S. counterterrorism, counterintelligence, and criminal investigative organization, the FBI has jurisdiction over violations of more than 200 categories of federal crimes. Although many of the FBI's functions are unique, its activities in support of national security are comparable to those of the British MI5 and NCA; the New Zealand GCSB and the Russian FSB. Unlike the Central Intelligence Agency (CIA), which has no law enforcement authority and is focused on intelligence collection abroad, the FBI is primarily a domestic agency, maintaining 56 field offices in major cities t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minden, Nevada
Minden is a census-designated place (CDP) in Douglas County, Nevada, United States. The population was 3,001 at the 2010 census. It is the county seat of Douglas County and is adjacent to the town of Gardnerville. The Douglas campus of the Western Nevada College is located in Minden. History It was founded in 1906 by Heinrich Friedrich Dangberg Jr., who named it after the town of Minden, in the German state of North Rhine-Westphalia, which was near his father's birthplace. A large share of the first settlers were Germans. Minden was founded on company land of the Dangberg Home Ranch and Dangberg commissioned most of the town's early buildings. Minden has had a post office since 1906. Use of sundown siren and sundown town status Minden sounds a " sundown siren" at 6pm almost every evening since 1917, originally signifying that members of the Washoe Indian tribe were required to leave town by 6:30pm or face jail or fine. Douglas County fully repealed its sundown ordinance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Civil Aeronautics Board
The Civil Aeronautics Board (CAB) was an agency of the federal government of the United States, formed in 1938 and abolished in 1985, that regulated aviation services including scheduled passenger airline serviceStringer, David H."Non-Skeds: The Story of America’s Supplemental Airlines, Part 1: Industry in the United States,"'' AAHS Journal'', vol. 64, no.4 (Winter 2019) journal of the American Aviation Historical Society, excerpt online, retrieved April 8, 2020 and provided air accident investigation. The agency headquarters were in Washington, D.C. Functions The primary role of the CAB was to regulate scheduled commercial airline operations in the United States. The CAB strictly controlled all U.S. certificated airlines ("scheduled carriers") -- deciding which routes would be serviced by which airlines, and setting minimum limits on passenger fares (comparable to the Interstate Commerce Commission) -- effectively managing competition between airlines, and ensuring certain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas County, Nevada
Douglas County is a county in the northwestern part of the U.S. state of Nevada. As of th2020 Census the population was 49,488. Its county seat is Minden. Douglas County comprises the Gardnerville Ranchos, NV Micropolitan Statistical Area, which is also included in the Reno–Carson City– Fernley, NV Combined Statistical Area. History The town of Genoa in Douglas County was the first permanent settlement in Nevada. Genoa was settled in 1851 by Mormon traders selling goods to settlers on their way to California. Named for Stephen A. Douglas, famous for his 1860 Presidential campaign and debates with Abraham Lincoln, Douglas County was one of the first nine counties formed in 1861 by the Nevada territorial legislature. The county seat is Minden, after having been moved from Genoa in 1915. Various services run by the county include parks, law enforcement, road maintenance, building inspection, and the Minden–Tahoe Airport. Fire protection and emergency medical services ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Air Force
The United States Air Force (USAF) is the Aerial warfare, air military branch, service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal Corps (United States Army), Signal Corps, the USAF was established as a separate branch of the United States Armed Forces in 1947 with the enactment of the National Security Act of 1947. It is the second youngest branch of the United States Armed Forces and the fourth in order of precedence. The United States Air Force articulates its core missions as air supremacy, intelligence, surveillance, target acquisition, and reconnaissance, global integrated intelligence, surveillance and reconnaissance, airlift, rapid global mobility, Strategic bombing, global strike, and command and control. The United States Air Force is a military service branch organized within the United States Department of the Air Force, De ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Lake Tahoe, Nevada (21572265225)
South is one of the cardinal directions or compass points. The direction is the opposite of north and is perpendicular to both east and west. Etymology The word ''south'' comes from Old English ''sūþ'', from earlier Proto-Germanic ''*sunþaz'' ("south"), possibly related to the same Proto-Indo-European root that the word ''sun'' derived from. Some languages describe south in the same way, from the fact that it is the direction of the sun at noon (in the Northern Hemisphere), like Latin meridies 'noon, south' (from medius 'middle' + dies 'day', cf English meridional), while others describe south as the right-hand side of the rising sun, like Biblical Hebrew תֵּימָן teiman 'south' from יָמִין yamin 'right', Aramaic תַּימנַא taymna from יָמִין yamin 'right' and Syriac ܬܰܝܡܢܳܐ taymna from ܝܰܡܝܺܢܳܐ yamina (hence the name of Yemen, the land to the south/right of the Levant). Navigation By convention, the ''bottom or down-facing side'' of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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