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Gliding Competition
Some of the pilots in the sport of gliding take part in gliding competitions. These are usually racing competitions, but there are also competition aerobatics, aerobatic contests and on-line league tables. History of competitions In the early days, the main goal was to stay airborne for as long as possible. However, flights could last for days and some pilots killed themselves by falling asleep. This type of duration contest was abandoned by 1939. From the earliest days of gliding there was also 'free distance' flying. Pilots launched themselves from a hill top, attempting to glide as far as possible. Once pilots learned to exploit ridge lift and thermals, flights could be extended further. Eventually they mastered flying from thermal to thermal, resulting in ever longer retrieves. As the pilots and gliders became better, the winner of a competition day might fly so far that they could not get back to the competition site for the next day. Turn-points were therefore use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grid AstonDown
Grid, The Grid, or GRID may refer to: Space partitioning * Regular grid, a tessellation of space with translational symmetry, typically formed from parallelograms or higher-dimensional analogs ** Grid graph, a graph structure with nodes connected in a regular grid ** Square grid, a grid of squares ** Triangular grid, a grid of triangles ** Hexagonal grid, a grid of hexagons ** Unstructured grid, a tessellation of a space by simple shapes such as triangles or tetrahedra in an irregular pattern * Grid reference system, a coordinate system relative to a particular map projection * Grid (spatial index), a discretization of a geometric domain into a set of contiguous cells, used to organize information ** Discrete global grid (DGG), a grid that covers the entire Earth's surface * Grid (graphic design) (or typographic grid), organized lines for guiding graphic design * Grid plan, a city design with streets running at right angles * Grid paper, paper with a regular grid printed on it * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lift (soaring)
Lift is a meteorological phenomenon used as an energy source by soaring aircraft and soaring birds. The most common human application of lift is in sport and recreation. The three air sports that use soaring flight are: gliding, hang gliding and paragliding. Energy can be gained by using rising air from four sources: * Thermals (where air rises due to heat), * Ridge lift, where air is forced upwards by a slope, * Wave lift, where a mountain produces a standing wave, * Convergence, where two air masses meet In dynamic soaring it is also possible to gain energy, though this uses differences in wind speeds rather than rising air. Thermals Thermals are columns of rising air that are formed on the ground through the warming of the surface by sunlight. If the air contains enough moisture, the water will condense from the rising air and form cumulus clouds. Thermal lift is often used by birds, such as raptors, vultures and storks. Although thermal lift was known to the Wright B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The New Zealand Herald
''The New Zealand Herald'' is a daily newspaper published in Auckland, New Zealand, owned by New Zealand Media and Entertainment, and considered a newspaper of record for New Zealand. It has the largest newspaper circulation in New Zealand, peaking at over 200,000 copies in 2006, although circulation of the daily ''Herald'' had declined to 100,073 copies on average by September 2019. The ''Herald''s publications include a daily paper; the ''Weekend Herald'', a weekly Saturday paper; and the ''Herald on Sunday'', which has 365,000 readers nationwide. The ''Herald on Sunday'' is the most widely read Sunday paper in New Zealand. The paper's website, nzherald.co.nz, is viewed 2.2 million times a week and was named Voyager Media Awards' News Website of the Year in 2020, 2021, 2022, and 2023. In 2023, the ''Weekend Herald'' was awarded Weekly Newspaper of the Year and the publication's mobile application was the News App of the Year. Its main circulation area is the Auckland R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omarama
Omarama is a small town (population 291 as of the 2018 census) at the junction of State Highway 8 (New Zealand), State Highways 8 and New Zealand State Highway 83, 83, near the southern end of the Mackenzie Basin, in the South Island of New Zealand. Omarama is in the Waitaki District, in the southern Canterbury region. The Ahuriri River is a short distance to the north of the township. Omarama is 30 km (20 minutes drive) southwest of Twizel, 40 km (30 minutes drive) southeast of Lake Ōhau and 32 km (21 minutes drive) northeast of the Lindis Pass. Omarama is primarily a rural service centre, providing local farmers and other residents with necessities and facilities such as grocery shopping, fuel and mechanical services, and a post shop. In recent years these and similar services have expanded moderately, due to the increase in new residents and visitors, including Fisherman, anglers, artists, astronomers, sailplane enthusiasts, skiers and tourists. A significant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banffshire
Banffshire (; ; ) is a historic county in Scotland. The county town is Banff, although the largest settlement is Buckie to the west. The historic county ceased to be used for local government purposes in 1975. Since 1996 the area has been split between the Aberdeenshire and Moray council areas. The historic county boundaries of Banffshire are still used for certain functions, being a registration county and lieutenancy area. It borders the Moray Firth to the north, Moray and Inverness-shire to the west, and Aberdeenshire to the east and south. History Considerable evidence of prehistoric human habitation exists in the area, particularly near the coast. Examples include the cairn at Longman Hill and Cairn Lee, near the Burn of Myrehouse. The area also includes the ruins of several medieval castles and the 12th century kirk of Gamrie. Banffshire's origins as a shire (the area administered by a sheriff) are obscure. There is some evidence that it was a shire from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shropshire (district)
Shropshire is a Unitary authorities of England, unitary authority area in the Ceremonial counties of England, ceremonial county of Shropshire, in the West Midlands (region), West Midlands region of England. It was created on 1 April 2009 from the former districts of Bridgnorth District, Bridgnorth, North Shropshire, Borough of Oswestry, Oswestry, Shrewsbury and Atcham and South Shropshire. The district is governed by Shropshire Council. It contains 188 civil parishes. Geography The district covers the towns of Oswestry, Church Stretton, Craven Arms, Ellesmere, Shropshire, Ellesmere, Wem, Whitchurch, Shropshire, Whitchurch, Much Wenlock, Shifnal, Bridgnorth, Broseley, Clun, Knighton, Powys, Knighton (part), Bishop's Castle, Cleobury Mortimer, Market Drayton and Shrewsbury. Governance The council has been under Conservative control since its creation in 2009, with the most recent 2021 Shropshire Council election, elections taken place in 2021. References {{Coord missing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Competition Aerobatics
Competition aerobatics is an air sport in which ground-based referee, judges rate the skill of pilots performing aerobatics, aerobatic flying. It is practised in both Reciprocating engine, piston-powered single-engine airplanes and also Glider (sailplane), gliders. An aerobatic competition is sanctioned by a national aero club, its designee, or in the case of international competitions, by CIVA, the Commission Internationale de Voltige Aerienne, which is a constituent body of the Fédération Aéronautique Internationale (FAI). The sanctioning body establishes the rules that apply to the competition, including entry qualifications for all participants, operating procedures, and judging criteria. A pilot enters a competition in a ''category'' of his or her choice, which defines the level of difficulty of the aerobatic sequences to be flown. Within each category, a pilot flies one or more ''flight programs''. Each flight receives a total score from the judges; ranking each pilot' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerokurier
''Aerokurier'' is a monthly magazine founded in 1957 covering international civil aviation published in the German language by Motor Presse Stuttgart, a large European publisher of special interest magazines. The magazine concentrates on the following subjects: * General aviation * Business aviation * Air sports * Gliding * Ultralight aviation * Flight training * Developments in aviation technology * Airports * Political topics concerning aviation ''Aerokurier'' is the principal sponsor of the Online Contest (OLC), a worldwide decentralized soaring competition for glider, hang glider, and paraglider Paragliding is the recreational and competitive adventure sport of flying paragliders: lightweight, free-flying, foot-launched Glider (aircraft), glider aircraft with no rigid primary structure. The pilot sits in a :wikt:harness, harness or in ... pilots. References External links Official site 1957 establishments in West Germany Air sports ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grand Prix Gliding
FAI World Grand Prix Gliding Championships are gliding competitions promoted by the Fédération Aéronautique Internationale (FAI) for gliders that are both more spectacular and more easily understood by the public than conventional gliding competitions. Origins Gliding competitions existed before the Second World War, but as the technologies evolved, the performance of the gliders has taken them away from the public view. Furthermore the scoring is complex and gliders can start at different times. Proposals were made in 1970 – Discussions between Nicholas Goodhart, George B. Moffat, Jr., < ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cloud Street
Horizontal convective rolls, also known as horizontal roll vortices or cloud streets, are long rolls of counter-rotating air that are oriented approximately parallel to the ground in the planetary boundary layer. Although horizontal convective rolls, also known as cloud streets, have been clearly seen in satellite photographs for the last 30 years, their development is poorly understood, due to a lack of observational data. From the ground, they appear as rows of cumulus or cumulus-type clouds aligned parallel to the low-level wind. Research has shown these eddies to be significant to the vertical transport of momentum, heat, moisture, and air pollutants within the boundary layer. Cloud streets are usually more or less straight; rarely, cloud streets assume paisley patterns when the wind driving the clouds encounters an obstacle. Those cloud formations are known as von Kármán vortex streets. Characteristics Horizontal rolls are counter-rotating vortex rolls that are near ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
