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2019 George Inlet, Alaska Mid-air Collision
On May 13, 2019, a de Havilland Canada DHC-2 Beaver floatplane operated by Mountain Air Service collided with a Taquan Air de Havilland Canada DHC-3 Turbine Otter floatplane over George Inlet, Alaska, United States. The DHC-2 broke up in mid-air with the loss of the single pilot and all four passengers. The DHC-3 pilot was able to maintain partial control, but the aircraft sustained substantial damage in the collision and the subsequent forced landing; the pilot suffered minor injuries, nine passengers suffered serious injuries, and one passenger was killed. Both aircraft were conducting sightseeing flights under visual flight rules, which state that the pilot of each aircraft is responsible for visually ensuring adequate separation from other air traffic, commonly known as "see and avoid". In April 2021, the National Transportation Safety Board (NTSB) attributed the accident to the inherent limitations of the see-and-avoid concept, along with the absence of alerts from both air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mid-air Collision
In aviation, a mid-air collision is an aviation accident, 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 Aviation communication, miscommunication, mistrust, error in Air navigation, navigation, deviations from flight plans, lack of situational awareness, and the lack of Traffic collision avoidance system, 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 betwee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edo Aircraft Corporation
EDO Aircraft Corporation was an American aircraft manufacturing company known primarily for manufacturing pontoons for floatplanes. History The EDO Aircraft Corporation began operations on October 16, 1925 in College Point, New York. Although its founder, Earl Dodge Osborne, had dreamed of building airplanes, his first successful product line was EDO floats. Because of a new innovative design, the use of aluminum rather than wood, and the scarcity of hard-surfaced runways in the 1920s, demand built quickly for the floats. With the outbreak of World War II, the company's focus shifted, and EDO began to provide subassemblies for military aircraft of the U.S. Naval Air Corps, U.S. Army Air Forces, and foreign air forces. This shift in emphasis led to the company's being renamed the EDO Corporation in November 1947. EDO built a factory in 1940 on Long Island, designed by the NYC firm of Malmfeldt, Adams & Prentice. Construction cost was $305,000. EDO-Aire In June 1950, Ray Erw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mean Sea Level
There are several kinds of mean in mathematics Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ..., especially in statistics. Each mean serves to summarize a given group of data, often to better understand the overall value (magnitude (mathematics), magnitude and sign (mathematics), sign) of a given data set. For a data set, the ''arithmetic mean'', also known as "arithmetic average", is a measure of central tendency of a finite set of numbers: specifically, the sum of the values divided by the number of values. The arithmetic mean of a set of numbers ''x''1, ''x''2, ..., x''n'' is typically denoted using an overhead bar, \bar. If the data set were based on a series of observations obtained by sampling (statistics), sampling from a statistical population, the arithmetic mean is th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NTSB Flightpath Exhibit For 2019 Alaska Mid-air Collision
The National Transportation Safety Board (NTSB) is an independent U.S. government investigative agency responsible for civil transportation accident investigation. In this role, the NTSB investigates and reports on aviation accidents and incidents, certain types of highway crashes, ship and marine accidents, pipeline incidents, bridge failures, and railroad accidents. The NTSB is also in charge of investigating cases of hazardous materials releases that occur during transportation. The agency is based in Washington, D.C. It has four regional offices, located in Anchorage, Alaska; Denver, Colorado; Ashburn, Virginia; and Seattle, Washington. The agency also operates a national training center at its Ashburn facility. History The origin of the NTSB was in the Air Commerce Act of 1926, which assigned the United States Department of Commerce responsibility for investigating domestic aviation accidents. Before the NTSB, the Federal Aviation Administration's (FAA; at the t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pilot-in-command
The pilot in command (PIC) of an aircraft is the person aboard the aircraft who is ultimately responsible for its operation and safety during flight. This would be the captain in a typical two- or three-pilot aircrew, or "pilot" if there is only one certificated and qualified pilot at the controls of an aircraft. The PIC must be legally certificated (or otherwise authorized) to operate the aircraft for the specific flight and flight conditions, but need not be actually manipulating the controls at any given moment. The PIC is the person legally in charge of the aircraft and its flight safety and operation, and would normally be the primary person liable for an infraction of any flight rule. The strict legal definition of PIC may vary slightly from country to country. The International Civil Aviation Organization, a United Nations agency, definition is: "The pilot responsible for the operation and safety of the aircraft during flight time." ''Flight time'' for airplanes is defined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medical Certifications For Pilots
In the United States, there are three classes of medical certifications for pilots; such certificates are required to legally exercise the privileges of a Pilot exercising the privileges of either a Private, Commercial, or Airline Transport Pilot license. Medical Certificates are not needed for Glider, Balloon, Recreational, or Sport Pilot certifications. Each certificate must be issued by a doctor approved by the Federal Aviation Administration to a person of stable physical and mental health. Types The three kinds are: *'' Third Class Medical Certificate'': necessary to exercise the privileges of a Private pilot license or certificate, or any lower pilot certification level except for the FAA's Sport pilot certificate (which only requires the same medical clearance required to drive a car, as evidenced by a valid driver license). In the United States, a third-class medical expires after 60 calendar months for someone under the age of forty years (as of the date of examinatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pilot Certification In The United States
Pilot certification in the United States is typically required for an individual to act as a pilot-in-command of an aircraft. It is regulated by the Federal Aviation Administration (FAA), a branch of the U.S. Department of Transportation (USDOT). A pilot may be certified under 14 Code of Federal Regulations (CFR) Part 61 or 14 CFR Part 141 (if a student at an approved part 141 school). Pilots may also be certified under 14 CFR Part 107 for commercial drone operations. An FAA-issued ''pilot certificate'' is evidence that an individual is duly authorized to exercise piloting privileges. The pilot certificate is one of several kinds of ''airman certificates'' issued by the FAA. General structure of certification A pilot is certificated to fly aircraft at one or more named ''privilege levels'' and, at each privilege level, rated to fly aircraft of specific ''categories''. Privilege levels of pilot certificates are, in order of increasing privilege: *Student Pilot: an individual who ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flight Data Recorder
A flight recorder is an electronic recording device placed in an aircraft for the purpose of facilitating the investigation of aviation accidents and incidents. The device may often be referred to as a "black box", an outdated name which has become a misnomer—they are now required to be painted bright orange, to aid in their recovery after accidents. There are two types of flight recording devices: the flight data recorder (FDR) preserves the recent history of the flight through the recording of dozens of parameters collected several times per second; the cockpit voice recorder (CVR) preserves the recent history of the sounds in the cockpit, including the conversation of the pilots. The two devices may be combined into a single unit. Together, the FDR and CVR objectively document the aircraft's flight history, which may assist in any later investigation. The two flight recorders are required by international regulation, overseen by the International Civil Aviation Organizat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cockpit Voice Recorder
A flight recorder is an electronic recording device placed in an aircraft for the purpose of facilitating the investigation of aviation accidents and incidents. The device may often be referred to as a "black box", an outdated name which has become a misnomer—they are now required to be painted bright orange, to aid in their recovery after accidents. There are two types of flight recording devices: the flight data recorder (FDR) preserves the recent history of the flight through the recording of dozens of parameters collected several times per second; the cockpit voice recorder (CVR) preserves the recent history of the sounds in the cockpit, including the conversation of the pilots. The two devices may be combined into a single unit. Together, the FDR and CVR objectively document the aircraft's flight history, which may assist in any later investigation. The two flight recorders are required by international regulation, overseen by the International Civil Aviation Organizat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Aviation Regulations
The Federal Aviation Regulations (FARs) are rules prescribed by the Federal Aviation Administration (FAA) governing all aviation activities in the United States. The FARs comprise Title 14 of the Code of Federal Regulations (CFR). A wide variety of activities are regulated, such as aircraft design and maintenance, typical airline flights, pilot training activities, hot-air ballooning, lighter-than-air aircraft, man-made structure heights, obstruction lighting and marking, model rocket launches, commercial space operations, model aircraft operations, Unmanned Aircraft Systems (UAS) and kite flying. The rules are designed to promote safe aviation, protecting pilots, flight attendants, passengers and the general public from unnecessary risk. FAR vs. 14 CFR Since 1958, these rules have typically been referred to as "FARs", short for Federal Aviation Regulations. However, another set of regulations (Title 48) is titled "Federal Acquisitions Regulations", and this has led to confu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The New York Times
''The New York Times'' (''the Times'', ''NYT'', or the Gray Lady) is a daily newspaper based in New York City with a worldwide readership reported in 2020 to comprise a declining 840,000 paid print subscribers, and a growing 6 million paid digital subscribers. It also is a producer of popular podcasts such as '' The Daily''. Founded in 1851 by Henry Jarvis Raymond and George Jones, it was initially published by Raymond, Jones & Company. The ''Times'' has won 132 Pulitzer Prizes, the most of any newspaper, and has long been regarded as a national " newspaper of record". For print it is ranked 18th in the world by circulation and 3rd in the U.S. The paper is owned by the New York Times Company, which is publicly traded. It has been governed by the Sulzberger family since 1896, through a dual-class share structure after its shares became publicly traded. A. G. Sulzberger, the paper's publisher and the company's chairman, is the fifth generation of the family to head the pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ketchikan, Alaska
Ketchikan ( ; tli, Kichx̱áan) is a city in and the borough seat of the Ketchikan Gateway Borough of Alaska. It is the state's southeasternmost major settlement. Downtown Ketchikan is a National Historic District. With a population at the 2020 census of 8,192, up from 8,050 in 2010, it is the sixth-most populous city in the state, and thirteenth-most populous community when census-designated places are included. The surrounding borough, encompassing suburbs both north and south of the city along the Tongass Highway (most of which are commonly regarded as a part of Ketchikan, albeit not a part of the city itself), plus small rural settlements accessible mostly by water, registered a population of 13,948 in that same census. Incorporated on August 25, 1900, Ketchikan is the earliest extant incorporated city in Alaska, because consolidation or unification elsewhere in Alaska resulted in the dissolution of those communities' city governments. Ketchikan is located on Revillagige ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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