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IS-3 ABC
The IS-3 ABC (''Instytut Szybownictwa'' – Gliding Institute) was a single-seat training glider designed and built in Poland from 1947. Development From 1946 the IS (Gliding Institute) started work on designing gliders to rebuild the shattered by the war Polish gliding movement. Four types were required: *1. School (IS-3 ABC) *2. Transition ( IS-A Salamandra) *3. Training and intermediate performance ( IS-2 Mucha) *4. High performance / advanced (IS-1 Sęp) To fulfil the 'School' requirement the IS-3 ABC primary glider was designed by Rudolf Matz and Roman Zatwarnicki, and built at the workshops in Bielsko. Using the sole remaining W.W.S.1 Salamandra as a starting point, the IS-3 ABC emerged looking similar to most primary gliders, with a high set rectangular low aspect ratio wing, wire-braced to an open structure wire-braced fuselage, which did nothing more than connect the seat, skid and tail unit to the wings. The IS-3 ABC prototype first flew on New Year's Eve of 1948 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is an affinity group for contributors with shared goals within the Wikimedia movement. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within Wikimedia project, sibling projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by ''Smithsonian Magazine, Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outsi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Primary Glider
Primary glider aircraft, gliders are a category of aircraft that enjoyed worldwide popularity during the 1920s and 1930s as people strove for simple and inexpensive ways to learn to fly.Schweizer, Paul A: ''Wings Like Eagles, The Story of Soaring in the United States'', pages 14-22. Smithsonian Institution Press, 1988. Constructed of wood, metal cables and cloth, primary gliders were very light and easy to fly. They generally had no Cockpit (aviation), cockpit and no instruments. Operations Primary gliders were generally launched by bungee cord, whereby a rubber rope was arranged in a "V" with the glider at the apex. The ends of the rope were pulled by hand to launch the glider from a slope. Primaries were also launched by auto-tow and auto-bungee tow. Ramp launching from cliffs was also attempted successfully. Modern primaries Modern versions of primary gliders are still built, but, while they are much like the originals in appearance, they are usually constructed with composit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slingsby Primary
The Slingsby T.3 Primary (a.k.a. Dagling) was a single-seat training glider produced in the 1930s by Fred Slingsby in Kirbymoorside, Yorkshire. Design and development During the 1920s Alexander Lippisch designed a training glider with very low performance to introduce pilots gradually to full-blown gliding. The result was a glider with a very simple structure of an open framework fuselage, with short wings attached by cables to a king post and the base of the fuselage. Lippisch's original design, the Zögling (Pupil in English) had an all-wood fuselage but Wolf Hirth instigated a redesign of the rear fuselage using steel tubes. History The plans for the modified Zögling made their way via the United States to the London Gliding Club and Reginald Foster Dagnall, whose RFD company put it into production as the RFD Primary. They built 27 in 1930-31. The type became known as the Dagling, a name formed by combining Dagnall and Zögling, which later became used informally to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dihedral (aircraft)
Dihedral angle is the upward angle from horizontal of the wings or tailplane of a fixed-wing aircraft. "Anhedral angle" is the name given to negative dihedral angle, that is, when there is a ''downward'' angle from horizontal of the wings or tailplane of a fixed-wing aircraft. Dihedral angle has a strong influence on dihedral effect, which is named after it. Dihedral effect is the amount of roll moment produced in proportion to the amount of sideslip. Dihedral effect is a critical factor in the stability of an aircraft about the roll axis (the spiral mode). It is also pertinent to the nature of an aircraft's Dutch roll oscillation and to maneuverability about the roll axis. Longitudinal dihedral is a comparatively obscure term related to the pitch axis of an airplane. It is the angle between the zero-lift axis of the wing and the zero-lift axis of the horizontal tail. Longitudinal dihedral can influence the nature of controllability about the pitch axis and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People's Republic Of China
China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after India, representing 17.4% of the world population. China spans the equivalent of five time zones and Borders of China, borders fourteen countries by land across an area of nearly , making it the list of countries and dependencies by area, third-largest country by land area. The country is divided into 33 Province-level divisions of China, province-level divisions: 22 provinces of China, provinces, 5 autonomous regions of China, autonomous regions, 4 direct-administered municipalities of China, municipalities, and 2 semi-autonomous special administrative regions. Beijing is the country's capital, while Shanghai is List of cities in China by population, its most populous city by urban area and largest financial center. Considered one of six ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lubawka
Lubawka () is a town in Poland, in Lower Silesia Voivodship, in Kamienna Góra County. It is the administrative seat of Gmina Lubawka. It lies in the Sudetes near to the border with the Czech Republic on the way across the Lubawka pass (516m) between the Karkonosze and Krucze Mountains (). Two small rivers, the Bóbr and Czarnuszka, run through the town, which has 6,028 inhabitants (2019). History In the 13th century a Kingdom of Poland (1025–1385), Polish defensive stronghold on the border with the Kingdom of Bohemia, Czech Kingdom was located in present-day Lubawka. The first written reference to Lubawka is from 1284 when it was written down as ''Lubavia''. The name is of Polish origin, and it comes from the word ''lubić'', which means "to like", or from the word ''łub'', which means "Bark (botany), bark". In 1292 Duke Bolko I the Strict granted Lubawka, which at that time already enjoyed town rights, to the Cistercian monastery in Krzeszów, Lower Silesian Voivodeship, Krz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krosno
Krosno (in full ''The Royal Free City of Krosno'', ) is a historical town and Krosno County, county in the Subcarpathian Voivodeship, in southeastern Poland. The estimated population of the town is 47,140 inhabitants as of 2014. The functional urban area of Krosno has a population of 115,000 inhabitants. Krosno is a medieval Defensive wall, fortified town, a former Royal Free Town and centre of Textile, cloth, linen, canvas, baize and Hungary, Hungarian wine trade. It is also notable for its glassmaking traditions, which became known as the Krosno Glassware. Until recently it was a provincial capital. Geography The River Wisłok passes by Krosno. Slovakia is about south, and Ukraine is about east of the city. It is located in the heartland of the Doły Jasielsko Sanockie, Doły (Pits), and its average altitude is above mean sea level, above sea level, but some hills are located within the confines of the city. Neighbouring municipalities are Korczyna, Lesser Poland Voivodes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fuselage
The fuselage (; from the French language, French ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds Aircrew, crew, passengers, or cargo. In single-engine aircraft, it will usually contain an Aircraft engine, engine as well, although in some amphibious aircraft the single engine is mounted on a hardpoint, pylon attached to the fuselage, which in turn is used as a floating Hull (watercraft), hull. The fuselage also serves to position the Flight control surfaces, control and Stabilizer (aeronautics), stabilization surfaces in specific relationships to Wing, lifting surfaces, which is required for aircraft stability and maneuverability. Types of structures Truss structure This type of structure is still in use in many lightweight aircraft using welding, welded steel tube trusses. A box truss fuselage structure can also be built out of wood—often covered with plywood. Simple box structures may be rounded by the addition of supported lightweight strin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IS-1 Sęp
The IS-1 Sęp was a single-seat high-performance Glider aircraft, glider designed and built in Poland from 1947. It was the first post-war Polish glider. Development The IS-1 Sęp (Vulture) was designed in Szybowcowy Zakład Doświadczalny, Instytut Szybownictwa (Gliding Institute) as part of the effort to re-invigorate Polish gliding after World War II, which included the IS-2 Mucha for training and medium performance, IS-A Salamandra transition solo trainer and IS-3 ABC primary trainer. An initial design was developed by Władysław Nowakowski and Józef Niespał.Glass, A. (ed) (1965), p. 28-30 The first flight, piloted by Piotr Mynarski, took place on 2 June 1947, but nearly ended in disaster as the ailerons were cross-connected. Mynarski abandoned the launch and landed safely. The Sęp was cleared for cloud flying, high speeds and basic aerobatics with comparable performance with foreign contemporaries such as the DFS Weihe and its derivative the Slingsby T.34 Sky. Tests ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft/page Content
A WikiProject, or Wikiproject, is an affinity group for contributors with shared goals within the Wikimedia movement. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sibling projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IS-2 Mucha
The IS-2 Mucha (''Instytut Szybownictwa'' – gliding institute) was a single-seat training glider designed and built in Poland starting in 1947. Development The IS-2 Mucha (''Mucha'' – Fly) was designed to provide an intermediate solo trainer for the revived Polish gliding movement after World War II, along with the IS-1 Sęp advanced soaring and competition aircraft, IS-3 ABC primary trainer and IS-A Salamandra basic trainer. The Mucha and its developments gave the majority of Polish pilots the experience they required to get the best out of their gliders. Construction was all-wood with plywood skinning for loaded areas and fabric covering for lightly loaded areas such as control surfaces and the wings aft of the main spars. The undercarriage consisted of a semi-recessed mainwheel and small skids under the nose and tail. The cockpit, covered by a built-up plexi-glas canopy was directly forward of the wing leading edge. Control surfaces were of standard wood and fabric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
