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1949 Strato-Freight Curtiss C-46A Crash
On 7 June 1949, a Strato-Freight Curtiss C-46 Commando, Curtiss Wright C-46D, Aircraft registration, registered in the United States as ''NC92857'', crashed into the Atlantic Ocean 10 km (6.4 mi) west of San Juan-Isla Grande Airport in San Juan, Puerto Rico while en route to Miami, Florida. Of the 81 passengers and crew on board, 53 were killed. Crash On 4 June 1949 (three days prior to the accident), the Strato Freight C-46 arrived in San Juan from Newark, New Jersey. Regular maintenance included a new Flap (aeronautics), flap follow-up cable, along with a check of both engines. Due to misfiring of the right engine, 13 new spark plugs were also installed. On 7 June, the aircraft was in service for a flight to Miami. The plane taxied to the runway at 00:10, and was airborne at 00:21. Approximately one minute thereafter, the right engine began losing power. The aircrew declared an emergency; the plane subsequently crashed into the Atlantic Ocean, roughly 200 m (656 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Juan-Isla Grande Airport
Fernando Luis Ribas Dominicci Airport , also commonly known as Isla Grande Airport, is an airport in Isla Grande (Santurce), Isla Grande, a district in the municipality of San Juan, Puerto Rico. It is owned by the Puerto Rico Ports Authority and is adjacent to the Puerto Rico Convention Center, the San Juan Bay, and the Pan American Cruise Ship Terminal, and overlooks Cataño, Puerto Rico, Cataño. While Isla Grande's main activity is general aviation, it is still a commercial airport, handling domestic and international commercial flights. It is included in the National Plan of Integrated Airport Systems for 2011–2015, which FAA airport categories, categorized it as a primary commercial service airport (more than 10,000 enplanements per year). History Originally constructed by the U.S. Navy as Naval Air Station Isla Grande just prior to World War II, the facility also served as Puerto Rico's main international airport until 1954, when San Juan Isla Verde International Airpo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magneto
A magneto is an electrical generator that uses permanent magnets to produce periodic pulses of alternating current. Unlike a dynamo, a magneto does not contain a commutator to produce direct current. It is categorized as a form of alternator, although it is usually considered distinct from most other alternators, which use field coils rather than permanent magnets. Hand-cranked magneto generators were used to provide ringing current in telephone systems. Magnetos were also adapted to produce pulses of high voltage in the ignition systems of some gasoline-powered internal combustion engines to provide power to the spark plugs. Use of such ignition magnetos for ignition is now limited mainly to engines without a low-voltage electrical system, such as lawnmowers and chainsaws, and to aircraft engines, in which keeping the ignition independent of the rest of the electrical system ensures that the engine continues running in the event of alternator or battery failure. For redundancy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airliner Accidents And Incidents Caused By Maintenance Errors
An airliner is a type of aircraft for transporting passengers and air cargo. Such aircraft are most often operated by airlines. Although the definition of an airliner can vary from country to country, an airliner is typically defined as an airplane intended for carrying multiple passengers or cargo in commercial service. The largest of them are wide-body jets which are also called twin-aisle because they generally have two separate aisles running from the front to the back of the passenger cabin. These are usually used for long-haul flights between airline hubs and major cities. A smaller, more common class of airliners is the narrow-body or single-aisle. These are generally used for short to medium-distance flights with fewer passengers than their wide-body counterparts. Regional airliners typically seat fewer than 100 passengers and may be powered by turbofans or turboprops. These airliners are the non- mainline counterparts to the larger aircraft operated by the major carri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation Accidents And Incidents In The United States In 1949
Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air craft such as hot air balloons and airships. Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896; then a large step in significance came with the construction of the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet which permitted a major form of transport throughout the world. Etymology The word ''aviation'' was coined by the French writer and former naval officer Gabriel La Landelle in 1863. He derived the term from th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation Accidents And Incidents In Puerto Rico
Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air craft such as hot air balloons and airships. Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896; then a large step in significance came with the construction of the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet which permitted a major form of transport throughout the world. Etymology The word ''aviation'' was coined by the French writer and former naval officer Gabriel La Landelle in 1863. He derived the term from th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accidents And Incidents Involving The Curtiss-Wright C-46 Commando
An accident is an unintended, normally unwanted event that was not directly caused by humans. The term ''accident'' implies that nobody should be blamed, but the event may have been caused by unrecognized or unaddressed risks. Most researchers who study unintentional injury avoid using the term ''accident'' and focus on factors that increase risk of severe injury and that reduce injury incidence and severity. For example, when a tree falls down during a wind storm, its fall may not have been caused by humans, but the tree's type, size, health, location, or improper maintenance may have contributed to the result. Most car wrecks are not true accidents; however English speakers started using that word in the mid-20th century as a result of media manipulation by the US automobile industry. Types Physical and non-physical Physical examples of accidents include unintended motor vehicle collisions, falls, being injured by touching something sharp or hot, or bumping into someth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Google News
Google News is a news aggregator service developed by Google. It presents a continuous flow of links to articles organized from thousands of publishers and magazines. Google News is available as an app on Android, iOS, and the Web. Google released a beta version in September 2002 and the official app in January 2006. The initial idea was developed by Krishna Bharat. The service has been described as the world's largest news aggregator. In 2020, Google announced they would be spending billion to work with publishers to create Showcases. History As of 2014, Google News was watching more than 50,000 news sources worldwide. Versions for more than 60 regions in 28 languages were available in March 2012. , service is offered in the following 35 languages: Arabic, Bengali, Bulgarian, Cantonese, Chinese, Czech, Dutch, English, French, German, Greek, Hebrew, Hindi, Hungarian, Italian, Indonesian, Japanese, Kannada, Korean, Latvian, Lithuanian, Malayalam, Norwegian, Polish, Portug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operating Certificate
Operating certificate is a category of license issued by a government agency allowing an individual or company to provide a controlled type of service. These certificates are generally issued for a limited time period. Certificates can have intrinsic value and in some cases can be sold. The term can be used to describe the document issued to operate any of the following: *Airline; (known as an Air Operator's Certificate) the authority to operate an airline *Airport; in the United States, the authority to operate an airport An airport is an aerodrome with extended facilities, mostly for commercial air transport. Airports usually consists of a landing area, which comprises an aerially accessible open space including at least one operationally active surfa ... *Adult care facility; generally issued by a local authority *Transportation company; generally issued by a local authority References {{DEFAULTSORT:Operating Certificate Licenses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Carrier
An airline is a company that provides civil aviation, air transport services for traveling passengers and freight. Airlines use aircraft to supply these services and may form partnerships or Airline alliance, alliances with other airlines for codeshare agreements, in which they both offer and operate the same flight. Generally, airline companies are recognized with an Air operator's certificate, air operating certificate or license issued by a governmental aviation body. Airlines may be scheduled or Air charter, charter operators. The List of airlines by foundation date, first airline was the German airship company DELAG, founded on November 16, 1909. The four oldest non-airship airlines that still exist are the Netherlands' KLM (1919), Colombia's Avianca (1919), Australia's Qantas (1920) and the Czech Republic's Czech Airlines (1923). Airline ownership has seen a shift from mostly personal ownership until the 1930s to government-ownership of major airlines from the 1940s to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gross Weight
In science and engineering, the weight of an object is the force acting on the object due to gravity. Some standard textbooks define weight as a vector quantity, the gravitational force acting on the object. Others define weight as a scalar quantity, the magnitude of the gravitational force. Yet others define it as the magnitude of the reaction force exerted on a body by mechanisms that counteract the effects of gravity: the weight is the quantity that is measured by, for example, a spring scale. Thus, in a state of free fall, the weight would be zero. In this sense of weight, terrestrial objects can be weightless: ignoring air resistance, the famous apple falling from the tree, on its way to meet the ground near Isaac Newton, would be weightless. The unit of measurement for weight is that of force, which in the International System of Units (SI) is the newton. For example, an object with a mass of one kilogram has a weight of about 9.8 newtons on the surface of the Earth, a ... [...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 l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pratt And Whitney
Pratt & Whitney is an American aerospace manufacturer with global service operations. It is a subsidiary of Raytheon Technologies. Pratt & Whitney's aircraft engines are widely used in both civil aviation (especially airlines) and military aviation. Its headquarters are in East Hartford, Connecticut.Contact Us ." Pratt & Whitney. Retrieved on January 7, 2011. "Corporate Headquarters Pratt & Whitney 400 Main Street East Hartford, CT 06108." As one of the "big three" aero-engine manufacturers, it competes with and , although it has also formed joint ventures with both ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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