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Clarence Leonard Johnson
Clarence Leonard "Kelly" Johnson (February 27, 1910 – December 21, 1990) was an American aeronautical engineering, aeronautical and Systems engineering, systems engineer. He is recognized for his contributions to a series of important aircraft designs, most notably the Lockheed U-2 and Lockheed SR-71 Blackbird, SR-71 Blackbird. Besides the first production aircraft to exceed mach number, Mach 3, he also produced Lockheed F-104 Starfighter, the first fighter capable of Mach 2, Lockheed P-80 Shooting Star, the United States' first operational jet fighter, as well as Lockheed P-38 Lightning, the first fighter to exceed 400 mph, and many other contributions to various aircraft. As a member and first team leader of the Lockheed Corporation, Lockheed Skunk Works, Johnson worked for more than four decades and is said to have been an "organizing genius". He played a leading role in the design of over forty aircraft, including several honored with the prestigious Collier Trophy, ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ishpeming, Michigan
Ishpeming ( ) is a city in Marquette County, Michigan, United States. Located in the Upper Peninsula, the population was 6,140 at the 2020 United States census, 2020 census, less than it was in the 1950s and 1960s when the Iron ore mines employed more workers. A statue of a Native American figure, erected in 1884 in the small town square, is referred to as "Old Ish". Ishpeming Township, Michigan, Ishpeming Township is located to the northwest of the city but is administratively autonomous. Ishpeming is considered the birthplace of organized skiing in the United States and is the home to the National Ski Hall of Fame. The city was also prominently featured in the 2010 documentary ''Catfish (film), Catfish''. The name "Ishpeming" comes . Geography Ishpeming is in central Marquette County, west of Marquette, Michigan, Marquette, the county seat. It is bordered to the east by the city of Negaunee, Michigan, Negaunee. According to the United States Census Bureau, Ishpeming has a t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mach Number
The Mach number (M or Ma), often only Mach, (; ) is a dimensionless quantity in fluid dynamics representing the ratio of flow velocity past a boundary to the local speed of sound. It is named after the Austrian physicist and philosopher Ernst Mach. \mathrm = \frac, where: * is the local Mach number, * is the local flow velocity with respect to the boundaries (either internal, such as an object immersed in the flow, or external, like a channel), and * is the speed of sound in the medium, which in air varies with the square root of the thermodynamic temperature. By definition, at Mach1, the local flow velocity is equal to the speed of sound. At Mach0.65, is 65% of the speed of sound (subsonic), and, at Mach1.35, is 35% faster than the speed of sound (supersonic). The local speed of sound, and hence the Mach number, depends on the temperature of the surrounding gas. The Mach number is primarily used to determine the approximation with which a flow can be treated as an i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flint Junior College
Flint, occasionally flintstone, is a sedimentary cryptocrystalline form of the mineral quartz, categorized as the variety of chert that occurs in chalk or marly limestone. Historically, flint was widely used to make stone tools and start fires. Flint occurs chiefly as nodules and masses in sedimentary rocks, such as chalks and limestones.''The Flints from Portsdown Hill'' Inside the nodule, flint is usually dark grey or black, green, white, or brown in colour, and has a glassy or waxy appearance. A thin, oxidised layer on the outside of the nodules is usually different in colour, typically white and rough in texture. The nodules can often be found along s and |
Flint Central High School
Flint Central High School was one of the Flint Community Schools, located in Flint, Michigan, United States. Flint Central was the city's oldest school. Its first building was built in 1875, and the school moved into the present building in 1923. It was called Flint High School until Flint Northern High School was built in around 1928. Approximately 2,000 students attended the school at its peak attendance, and about half that at the time of its closing. Graduation ceremonies were held at Whiting Auditorium. The school building is located in the East Village, near the corner of Crapo Street and Court Street. History In April 2009 the Board of Education voted to close the school due to declining enrollment and maintenance costs. As Central High School is one of the oldest buildings in the district, it was cited as costly to maintain and renovate. Several other schools in the district were closed as well, all of which were elementary schools. The last day of classes at Fl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scania
Scania ( ), also known by its native name of Skåne (), is the southernmost of the historical provinces of Sweden, provinces () of Sweden. Located in the south tip of the geographical region of Götaland, the province is roughly conterminous with Skåne County, created in 1997. Like the other historical provinces of Sweden, Scania still features in colloquial speech and in cultural references, and can therefore not be regarded as an archaic concept. Within Scania there are 33 municipalities of Sweden, municipalities that are autonomous within the Skåne Regional Council. Scania's largest urban areas of Sweden, city, Malmö, is the third-largest city in Sweden, as well as the fifth-largest in Scandinavia. To the north, Scania borders the historical provinces of Halland and Småland, to the northeast Blekinge, to the east and south the Baltic Sea, and to the west Öresund. Since 2000, a road and railway bridge, the Öresund Bridge, bridges the Öresund, Sound and connects Scania ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malmö
Malmö is the List of urban areas in Sweden by population, third-largest city in Sweden, after Stockholm and Gothenburg, and the List of urban areas in the Nordic countries, sixth-largest city in Nordic countries, the Nordic region. Located on the Øresund, Öresund Øresund, strait on the southwestern coast of Sweden, it is the largest city in Scania, with a municipal population of 365,644 in 2024, and is the Governors of Skåne County, gubernatorial seat of Skåne County. Malmö received its city privileges in 1353, and today Metropolitan Malmö, Malmö's metropolitan region is home to over 700,000 people. Malmö is the site of Sweden's only Fixed link, fixed direct link to continental Europe, the Öresund Bridge, completed in 2000. The bridge connects Sweden to Denmark, and carries both road and rail traffic. The Öresund Region, which includes Malmö and Copenhagen, is home to four million people. The city was one of the earliest and most-Industrial Revolution, industri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ben Rich (engineer)
Benjamin Robert Rich (June 18, 1925 – January 5, 1995) was an American engineer and the second director of Lockheed's Skunk Works from 1975 to 1991, succeeding its founder, Kelly Johnson. Regarded as the "father of stealth", Rich was responsible for leading the development of the F-117, the first production stealth aircraft. He also worked on the F-104, U-2, A-12, SR-71, and F-22, among others. Early in life Rich was born in Manila in the Philippines. He was one of five children of British lumber mill superintendent Isidore Rich and his French wife, Annie, the daughter of one of his paternal grandfather's Jewish customers who lived in Alexandria, Egypt. The Rich family was one of the first Jewish families to settle in Manila. Having fled the Philippines just weeks before the Empire of Japan's attack on Pearl Harbor, they moved to the United States in 1942, where Rich became a naturalized US citizen. He worked (with his father) in a Los Angeles, California, machine sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hall Hibbard
Hall Livingstone Hibbard (July 26, 1903 – June 6, 1996) was an engineer and administrator of the Lockheed Corporation beginning with the company's purchase by a board of investors led by Robert E. Gross in 1932. Born in Kansas, he received a bachelor's degree in mathematics and physics at the College of Emporia in 1925. He graduated from the Massachusetts Institute of Technology two years later. He worked for Stearman as a draftsman, before joining Robert Gross' Viking Flying Boat Company. He served on the board of the newly revived Lockheed Corporation and led the design departments as chief engineer. Engineers such as Clarence "Kelly" Johnson and Willis Hawkins worked under him.Parker, Dana T. ''Building Victory: Aircraft Manufacturing in the Los Angeles Area in World War II,'' p. 59, Cypress, California, 2013. . He died in 1996 in Los Angeles Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation Week & Space Technology
''Aviation Week & Space Technology'', often abbreviated ''Aviation Week'' or ''AW&ST'', is the flagship magazine of the Aviation Week Network, a division of Informa. The weekly magazine is available in print and online, reporting on the aerospace, defense and aviation industries, with a core focus on aerospace technology. It has a reputation for its contacts inside the United States military and industry organizations. ''Aviation Week'' was a favorite conduit for defense-related companies and labs to leak information to the public as part of their policy by press release efforts. This led to it being informally referred to "Aviation Leak and Space Mythology". History The magazine was first published in August 1916. Early editors Ladislas d'Orsy and Donald W. McIlhiney (1921 to 25) were Quiet Birdmen. Publisher (1927 to 29) Earl D. Osborn was also a Quiet Birdman. With the coming of the Space Age, the current title was adopted in 1960. Other titles the magazine has held inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft Design Engineer
Aerospace engineering is the primary field of engineering concerned with the development of aircraft and spacecraft. It has two major and overlapping branches: aeronautical engineering and astronautical engineering. Avionics engineering is similar, but deals with the electronics side of aerospace engineering. "Aeronautical engineering" was the original term for the field. As flight technology advanced to include vehicles operating in outer space, the broader term "aerospace engineering" has come into use. Aerospace engineering, particularly the astronautics branch, is often colloquially referred to as "rocket science". Overview Flight vehicles are subjected to demanding conditions such as those caused by changes in atmospheric pressure and temperature, with structural loads applied upon vehicle components. Consequently, they are usually the products of various technological and engineering disciplines including aerodynamics, air propulsion, avionics, materials science, stru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Collier Trophy
The Robert J. Collier Trophy is awarded annually "for the greatest achievement in aeronautics or astronautics in America, with respect to improving the performance, efficiency, and safety of air or space vehicles, the value of which has been thoroughly demonstrated by actual use during the preceding year." The Collier Trophy is administered by the National Aeronautic Association (NAA) the oldest national aviation organization in the United States. Founded in 1905, the NAA oversees America's oldest and most prestigious aviation and aerospace recognitions. The Collier Trophy is the most coveted of all. Robert J. Collier, publisher of '' Collier's Weekly'' magazine, was an air sports pioneer and president of the Aero Club of America. In 1910, he commissioned Baltimore sculptor Ernest Wise Keyser to make the ''Aero Club of America Trophy''. It was first awarded in 1911 to Glenn H. Curtiss for his successful development of the hydro-aeroplane. Collier presented his namesake ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
