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Free Flight (model Aircraft)
Free flight is the segment of model aviation involving aircraft with no active external control after launch. Free Flight is the original form of hobby aeromodeling, with the competitive objective being to build and launch a self controlling aircraft that will consistently achieve the longest flight duration over multiple competition rounds, within various class parameters. Description The essence of free-flight is that the aircraft have no need for external control, for instance by radio. Aircraft of this type have been flown for over two centuries. They are designed to be inherently stable in flight; if disturbed by a gust of wind or a thermal current they will return automatically to stable flight. Their stability is achieved by a combination of design and trim, - the relationship between centre of gravity, wing and tailplane incidence and rudder setting. With their much lower wing loading, free-flight aircraft fly much more slowly than the engine-powered radio-controlled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sydney Camm 1915
Sydney ( ) is the capital city of the state of New South Wales, and the most populous city in both Australia and Oceania. Located on Australia's east coast, the metropolis surrounds Sydney Harbour and extends about towards the Blue Mountains to the west, Hawkesbury to the north, the Royal National Park to the south and Macarthur to the south-west. Sydney is made up of 658 suburbs, spread across 33 local government areas. Residents of the city are known as "Sydneysiders". The 2021 census recorded the population of Greater Sydney as 5,231,150, meaning the city is home to approximately 66% of the state's population. Estimated resident population, 30 June 2017. Nicknames of the city include the 'Emerald City' and the 'Harbour City'. Aboriginal Australians have inhabited the Greater Sydney region for at least 30,000 years, and Aboriginal engravings and cultural sites are common throughout Greater Sydney. The traditional custodians of the land on which modern Sydney stands are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Baden Springs Hotel
The West Baden Springs Hotel, formerly known as the West Baden Inn, is part of the French Lick Resort and is a national historic landmark hotel in West Baden Springs, Orange County, Indiana. It is known for the dome covering its atrium. Prior to the completion of the Coliseum in Charlotte, North Carolina, in 1955, the hotel had the largest free-spanning dome in the United States. From 1902 to 1913 it was the largest dome in the world. Listed on the National Register of Historic Places in 1974, the hotel became a National Historic Landmark in 1987. It is a National Historic Civil Engineering Landmark and one of the hotels in the National Trust for Historic Preservation's Historic Hotels of America program. Early history Roaming bear and herds of deer and buffalo once visited the salt lick near the present-day site of the West Baden Springs Hotel as they traveled along the Buffalo Trace in southern Indiana. Native Americans also used the area as hunting grounds. Following t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hangar
A hangar is a building or structure designed to hold aircraft or spacecraft. Hangars are built of metal, wood, or concrete. The word ''hangar'' comes from Middle French ''hanghart'' ("enclosure near a house"), of Germanic origin, from Frankish *''haimgard'' ("home-enclosure", "fence around a group of houses"), from *''haim'' ("home, village, hamlet") and ''gard'' ("yard"). The term, ''gard'', comes from the Old Norse ''garðr'' ("enclosure, garden"). Hangars are used for protection from the weather, direct sunlight and for maintenance, repair, manufacture, assembly and storage of aircraft. History The Wright brothers stored and repaired their aircraft in a wooden hangar constructed in 1902 at Kill Devil Hills in North Carolina for their glider. After completing design and construction of the '' Wright Flyer'' in Ohio, the brothers returned to Kill Devil Hills only to find their hangar damaged. They repaired the structure and constructed a new workshop while they waited for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Revolutions Per Minute
Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or with the notation min−1) is a unit of rotational speed or rotational frequency for rotating machines. Standards ISO 80000-3:2019 defines a unit of rotation as the dimensionless unit equal to 1, which it refers to as a revolution, but does not define the revolution as a unit. It defines a unit of rotational frequency equal to s−1. The superseded standard ISO 80000-3:2006 did however state with reference to the unit name 'one', symbol '1', that "The special name revolution, symbol r, for this unit is widely used in specifications on rotating machines." The International System of Units (SI) does not recognize rpm as a unit, and defines the unit of frequency, Hz, as equal to s−1. :\begin 1~&\text &&=& 60~&\text \\ \frac~&\text &&=& 1~&\text \end A corresponding but distinct quantity for describing rotation is angular velocity, for which the SI unit is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academy Of Model Aeronautics
The Academy of Model Aeronautics (AMA), based in Muncie, Indiana, United States at , is a non-profit organization dedicated to the promotion of model aviation as a recognized sport as well as a recreational activity. It is the largest organization of its kind with a current membership of approximately 195,000 members, with nearly 57,000 of these being youth members under 19 years of age. Founded in 1936, the AMA is the official national body for model aviation in the United States. They sanction more than one thousand model competitions, and an increasing number of non-competitive Fly-in events for member aeromodelers throughout the country each year, charter more than 2500 model airplane clubs and offer contest sanctioning, liability insurance and the procurement of flying sites. They also certify official model flying records. All AMA-chartered clubs require their flying members to purchase AMA memberships for said liability insurance. In order to be covered by their insuranc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indoor
{{disambiguation ...
Indoor(s) may refer to: *the interior of a building *Indoor environment, in building science, traditionally includes the study of indoor thermal environment, indoor acoustic environment, indoor light environment, and indoor air quality *Built environment, the human-made environment that provides the setting for human activity *Indoor athletics *indoor games and sports See also * * * Indore (other) * Inside (other) * The Great Indoors (other) The Great Indoors may refer to: * The Great Indoors (department store) * ''The Great Indoors'' (TV series) *"The Great Indoors", an episode of season 3 of ''Phineas and Ferb'' See also *The Great Outdoors (other) The Great Outdoors may re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
