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1956 Grand Canyon Mid-air Collision
The Grand Canyon mid-air collision occurred in the western United States on Saturday, June 30, 1956, when a United Airlines Douglas DC-7 struck a Trans World Airlines Lockheed L-1049 Super Constellation over Grand Canyon National Park, Arizona. All 128 on board both airplanes perished, making it the first commercial airline incident to exceed one hundred fatalities. The airplanes had departed Los Angeles International Airport minutes apart for Chicago and Kansas City, respectively. The collision took place in uncontrolled airspace, where it was the pilots' responsibility to maintain separation ("see and be seen"). This highlighted the antiquated state of air traffic control, which became the focus of major aviation reforms. Flight history Trans World Airlines Flight 2, a Lockheed L-1049 Super Constellation named ''Star of the Seine'', with Captain Jack Gandy (age 41), First Officer James Ritner (31), and Flight Engineer Forrest Breyfogle (37), departed Los Angeles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mid-air Collision
In aviation, a mid-air collision is an accident in which two or more aircraft come into unplanned contact during flight. Owing to the relatively high velocities involved and the likelihood of subsequent impact with the ground or sea, very severe damage or the total destruction of at least one of the aircraft usually results. The potential for a mid-air collision is increased by miscommunication, mistrust, error in navigation, deviations from flight plans, lack of situational awareness, and the lack of collision-avoidance systems. Although a rare occurrence in general due to the vastness of open space available, collisions often happen near or at airports, where large volumes of aircraft are spaced more closely than in general flight. First recorded mid-air collision The first recorded collision between aircraft occurred at the "Milano Circuito Aereo Internazionale" meeting held between 24 September and 3 October 1910 in Milan, Italy. On 3 October, Frenchman René Thomas, f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kansas City, Missouri
Kansas City (abbreviated KC or KCMO) is the largest city in Missouri by population and area. As of the 2020 United States census, 2020 census, the city had a population of 508,090 in 2020, making it the List of United States cities by population, 36th most-populous city in the United States. It is the central city of the Kansas City metropolitan area, which straddles the Missouri–Kansas state line and has a population of 2,392,035. Most of the city lies within Jackson County, Missouri, Jackson County, with portions spilling into Clay County, Missouri, Clay, Cass County, Missouri, Cass, and Platte County, Missouri, Platte counties. Kansas City was founded in the 1830s as a port on the Missouri River at its confluence with the Kansas River coming in from the west. On June 1, 1850, the town of Kansas was incorporated; shortly after came the establishment of the Kansas Territory. Confusion between the two ensued, and the name Kansas City was assigned to distinguish them soon afte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Controlled Airspace
Controlled airspace is airspace of defined dimensions within which air traffic control (ATC) services are provided. The level of control varies with different classes of airspace. Controlled airspace usually imposes higher weather minimums than are applicable in uncontrolled airspace. It is the opposite of uncontrolled airspace. Controlled airspace is established mainly for three different reasons: * high-volume air traffic areas, e.g. near airports * Instrument flight rules traffic under ATC guidance * security, e.g. within an Air Defense Identification Zone Controlled airspace usually exists in the immediate vicinity of busier airports, where aircraft used in commercial air transport flights are climbing out from or making an approach to the airport, or at higher levels where air transport flights would tend to cruise. Some countries also provide controlled airspace almost generally, however in most countries it is common to provide uncontrolled airspace in areas where s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uncontrolled Airspace
In aviation, uncontrolled airspace is airspace where an Air Traffic Control (ATC) service is not deemed necessary or cannot be provided for practical reasons. It is the opposite of controlled airspace. It is that portion of the airspace that has not been designated as Control Area, Control Zone, Terminal Control Area or Transition Area. According to the airspace classes set by the International Civil Aviation Organization (ICAO), the uncontrolled classes of airspace are class F and G. Class F Class F (uncontrolled) is rarely encountered in ICAO member-states' airspace systems. In the UK, it was formerly a hybrid between class E (controlled) and G (uncontrolled) as Advisory Routes (ADRs). In the UK, all airspace previously designated as class F was re-assigned to either class E or G on 13 November 2014. Class G Individual countries designate different portions of airspace as class G, e.g. in the UK, airspace above FL660 (Flight Level In aviation and aviation meteorology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trinidad, Colorado
Trinidad is the home rule municipality that is the county seat and the most populous municipality of Las Animas County, Colorado, United States. The population was 8,329 as of the 2020 census. Trinidad lies north of Raton, New Mexico, and south of Denver. It is on the historic Santa Fe Trail. History Early Trinidad was first explored by Spanish and Mexican traders, who liked its proximity to the Santa Fe Trail. It was founded in 1862 soon after coal was discovered in the region. This led to an influx of immigrants eager to capitalize on this natural resource. By the late 1860s, the town had about 1,200 residents. Trinidad was officially incorporated in 1876, just a few months before Colorado became a state. In 1878 the Atchison, Topeka and Santa Fe Railway reached Trinidad, making it easier for goods to be shipped from distant locations. In the 1880s Trinidad became home to a number of well-known people, including Bat Masterson, who briefly served as the town's marshal in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low-frequency Radio Range
The low-frequency radio range, also known as the four-course radio range, LF/MF four-course radio range, A-N radio range, Adcock radio range, or commonly "the range", was the main Radio navigation, navigation system used by aircraft for instrument flight rules, instrument flying in the 1930s and 1940s, until the advent of the VHF omnidirectional range (VOR), beginning in the late 1940s. It was used for en route navigation as well as instrument approaches and Holding (aviation), holds. Based on a network of radio towers which transmitted Radiation pattern, directional radio signals, the radio range defined specific Airway (aviation), airways in the sky. Pilots navigated using low-frequency radio by listening to a stream of automated "A" and "N" Morse codes. For example, they would turn the aircraft to the right when hearing an "N" stream ("dah-dit, dah-dit, ..."), to the left when hearing an "A" stream ("di-dah, di-dah, ..."), and fly straight ahead while hearing a steady tone. As ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daggett, California
Daggett is an unincorporated community located in San Bernardino County, California in the United States. The town is located on Interstate 40 ten miles (16 km) east of Barstow. The town has a population of about 200. The ZIP code is 92327 and the community is inside area code 760. History The town was founded in the 1880s just after the discovery of silver in the mines near Calico to the north. In 1882, the Southern Pacific Railroad with the Atlantic & Pacific Railroad (Later Atchison, Topeka and Santa Fe Railway, BNSF) from Mojave was being completed in the area and it was thought that a good name for the town would be Calico Junction. But this name would be too confusing since it was right next to Calico, where silver was discovered. It was decided to name the city after then Lieutenant Governor of California, John Daggett, during the Spring of 1883. There were plans to make Daggett the main station of the area and to have a rail yard there to handle the heavy train ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metres Above Sea Level
Height above mean sea level is a measure of the vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as '' orthometric heights''. The combination of unit of measurement and the physical quantity (height) is called "metres above mean sea level" in the metric system, while in United States customary and imperial units it would be called " feet above mean sea level". Mean sea levels are affected by climate change and other factors and change over time. For this and other reasons, recorded measurements of elevation above sea level at a reference time in history might differ from the actual elevation of a given location over sea level at a given moment. Uses Metres above sea level is the standard measurement of the elevation or altitude of: * Geographic locations such as towns, mountains and other landmarks. * The top of buildings and other structures. * Flying objects su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Instrument Flight Rules
In aviation, instrument flight rules (IFR) is one of two sets of regulations governing all aspects of civil aviation aircraft operations; the other is visual flight rules (VFR). The U.S. Federal Aviation Administration's (FAA) ''Instrument Flying Handbook'' defines IFR as: "Rules and regulations established by the FAA to govern flight under conditions in which flight by outside visual reference is not safe. IFR flight depends upon flying by reference to instruments in the flight deck, and navigation is accomplished by reference to electronic signals." It is also a term used by pilots and controllers to indicate the type of flight plan an aircraft is flying, such as an IFR or VFR flight plan. Basic information Comparison to visual flight rules It is possible and fairly straightforward, in relatively clear weather conditions, to fly an aircraft solely by reference to outside visual cues, such as the horizon to maintain orientation, nearby buildings and terrain features for n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles B
Charles is a masculine given name predominantly found in English and French speaking countries. It is from the French form ''Charles'' of the Proto-Germanic name (in runic alphabet) or ''*karilaz'' (in Latin alphabet), whose meaning was "free man". The Old English descendant of this word was '' Ċearl'' or ''Ċeorl'', as the name of King Cearl of Mercia, that disappeared after the Norman conquest of England. The name was notably borne by Charlemagne (Charles the Great), and was at the time Latinized as ''Karolus'' (as in ''Vita Karoli Magni''), later also as '' Carolus''. Some Germanic languages, for example Dutch and German, have retained the word in two separate senses. In the particular case of Dutch, ''Karel'' refers to the given name, whereas the noun ''kerel'' means "a bloke, fellow, man". Etymology The name's etymology is a Common Germanic noun ''*karilaz'' meaning "free man", which survives in English as churl (< Old English ''ċeorl''), which developed its dep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flight Attendant
A flight attendant, also known as steward/stewardess or air host/air hostess, is a member of the aircrew aboard commercial flights, many business jets and some government aircraft. Collectively called cabin crew, flight attendants are primarily responsible for passenger safety and comfort. History The role of a flight attendant derives from that of similar positions on passenger ships or passenger trains, but it has more direct involvement with passengers because of the confined quarters on aircraft. Additionally, the job of a flight attendant revolves around safety to a much greater extent than those of similar staff on other forms of transportation. Flight attendants on board a flight collectively form a ''cabin crew'', as distinguished from pilots and engineers in the cockpit. The German Heinrich Kubis was the world's first flight attendant, in 1912. Kubis first attended the passengers on board the DELAG Zeppelin LZ 10 ''Schwaben''. He also attended to the famous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flight Engineer
A flight engineer (FE), also sometimes called an air engineer, is the member of an aircraft's flight crew who monitors and operates its complex aircraft systems. In the early era of aviation, the position was sometimes referred to as the "air mechanic". Flight engineers can still be found on some larger fixed-wing airplanes and helicopters. A similar crew position exists on some spacecraft. In most modern aircraft, their complex systems are both monitored and adjusted by electronic microprocessors and computers, resulting in the elimination of the flight engineer's position. In earlier days, most larger aircraft were designed and built with a flight engineer's position. For U.S. civilian aircraft that require a flight engineer as part of the crew, the FE must possess an FAA Flight Engineer Certificate with reciprocating, turboprop, or turbojet ratings appropriate to the aircraft. Whereas the four-engine Douglas DC-4 did not require an FE, the FAA type certificates of subsequent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
