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Glaser-Dirks DG-300
The Glaser-Dirks DG-300 is a Standard Class single-seat high-performance glider built of glass-reinforced plastic. The DG-300 was designed by Wilhelm Dirks and manufactured by Glaser-Dirks Flugzeugbau's Slovenian partner company Elan (company). A total of 511 of all versions were built since production started in 1983. Representative contemporary types from competing manufacturers are the Rolladen-Schneider LS4 and the Schempp-Hirth Discus. Design and development The DG-300 has a flapless wing with triple taper based on the Hansjörg Streifeneder Falcon, and employs the HQ 21/II, a relatively thick profile (ca. 17.5%). This wing is 'blown' on the underside by 900 small holes to achieve a controlled transition from laminar to turbulent flow without additional drag. However, these holes are prone to clogging due to dirt, moisture and wing surface polishing, which makes them less effective over time. As with any racing glider, the thickness of the wing makes it relatively sensitiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sintra
Sintra (, ) is a town and municipality in the Greater Lisbon region of Portugal, located on the Portuguese Riviera. The population of the municipality in 2011 was 377,835, in an area of . Sintra is one of the most urbanized and densely populated municipalities of Portugal. A major tourist destination famed for its picturesqueness, the municipality has several historic palaces, castles, scenic beaches, parks and gardens. The area includes the Sintra-Cascais Nature Park through which the Sintra Mountains run. The historic center of the ''Vila de Sintra'' is famous for its 19th-century Romanticist architecture, historic estates and villas, gardens, and royal palaces and castles, which resulted in the classification of the town as a UNESCO World Heritage Site. Sintra's landmarks include the medieval Castle of the Moors, the romanticist Pena National Palace and the Portuguese Renaissance Sintra National Palace. Sintra is one of the wealthiest municipalities in both Portugal and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hansjörg Streifeneder Falcon
The Hansjörg Streifeneder Falcon is a German sailplane developed by the glider manufacturer Glasflügel. Specifications See also *List of gliders This is a list of gliders/ sailplanes of the world, (this reference lists all gliders with references, where available) Note: Any aircraft can glide for a short time, but gliders are designed to glide for longer. By nationality * List of Amer ... References Glider aircraft Glasflügel aircraft 1980s German sailplanes Aircraft first flown in 1981 {{aircraft-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DG Flugzeugbau Aircraft
DG may refer to: Arts and entertainment * Death Grips, an American experimental hip hop group * DG (character), in the science fiction series ''Tin Man'' * Dial Global, a radio network * Dragon Gate, a Japanese professional wrestling promotion * Drain Gang, a Swedish rap group Business and organizations * Data General, a minicomputer manufacturer * DG Flugzeugbau, a German airplane manufacturer * Desnoes & Geddes, DG, D&G, a Jamaican brand of soft drinks * Deutsche Grammophon, a classical music record label * Dial Global, a radio network * Dolce & Gabbana, an Italian luxury fashion design * Dollar General, an American variety store (NYSE ticker DG) * Cebgo, formerly South East Asian Airlines, SEAir, Tigerair Philippines; IATA code *Delta Gamma, a women's fraternity Places * DG postcode area, the Dumfries and Galloway postcode area in Scotland * Danilovgrad, a municipality in Montenegro, abbreviated DG on car plates * German-speaking Community of Belgium (german: Deutschspra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1970s German Sailplanes
Year 197 ( CXCVII) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Magius and Rufinus (or, less frequently, year 950 ''Ab urbe condita''). The denomination 197 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * February 19 – Battle of Lugdunum: Emperor Septimius Severus defeats the self-proclaimed emperor Clodius Albinus at Lugdunum (modern Lyon). Albinus commits suicide; legionaries sack the town. * Septimius Severus returns to Rome and has about 30 of Albinus's supporters in the Senate executed. After his victory he declares himself the adopted son of the late Marcus Aurelius. * Septimius Severus forms new naval units, manning all the triremes in Italy with heavily armed troops for war in the East. His soldiers embark on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Gliders
This is a list of gliders/sailplanes of the world, (this reference lists all gliders with references, where available) Note: Any aircraft can glide for a short time, but gliders are designed to glide for longer. By nationality *List of American gliders *List of Argentine gliders * List of Australian gliders *List of Austrian gliders *List of Belgian gliders *List of Brazilian gliders *List of British gliders * List of Bulgarian gliders *List of Canadian gliders *List of Chinese gliders *List of Czechoslovak gliders *List of Danish gliders *List of Dutch gliders * List of Estonian gliders *List of Finnish gliders *List of French gliders *List of German gliders *List of Greek gliders *List of Hungarian gliders *List of Indian gliders *List of Iranian gliders *List of Irish gliders *List of Italian gliders *List of Japanese gliders *List of Latvian gliders *List of Lithuanian gliders *List of New Zealand gliders *List of Philippines gliders *List of Polish gliders *List of Portugu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schleicher ASW 19
The ASW 19 is a single-seat glider built by Alexander Schleicher GmbH & Co, first flying in 1975. It was originally designed as a Standard Class glider, but now mainly competes in the Club Class. The ASW 19 is known for its pleasant handling and some clubs use it as a training glider. It was succeeded by the all-new Schleicher ASW 24. Design The wings are from the ASW 15 with upper-surface Schempp-Hirth metal air brakes added. Later models received modified brakes with an additional panel to improve effectiveness. The all-new fibreglass fuselage was built without the honeycombs that were used on the ASW 15 and ASW 17. It has a winch hook, which is covered by the main wheel doors, and an aerotow hook situated approximately from the nose. The wings are held in place with two main pins. Up to of water ballast can be carried. The tail unit is also of glassfibre/foam sandwich, and the horizontal tailplane has a fixed stabilizer. Variants With the ASW 19b version, the maximu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slovenia
Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: , abbr.: ''RS''), is a country in Central Europe. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the southeast, and the Adriatic Sea to the southwest. Slovenia is mostly mountainous and forested, covers , and has a population of 2.1 million (2,108,708 people). Slovenes constitute over 80% of the country's population. Slovene, a South Slavic language, is the official language. Slovenia has a predominantly temperate continental climate, with the exception of the Slovene Littoral and the Julian Alps. A sub-mediterranean climate reaches to the northern extensions of the Dinaric Alps that traverse the country in a northwest–southeast direction. The Julian Alps in the northwest have an alpine climate. Toward the northeastern Pannonian Basin, a continental climate is more pronounced. Ljubljana, the capital and largest city of Slovenia, is geogr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wingtip Device
Wingtip devices are intended to improve the efficiency of fixed-wing aircraft by reducing drag. Although there are several types of wing tip devices which function in different manners, their intended effect is always to reduce an aircraft's drag by partial recovery of the tip vortex energy. Wingtip devices can also improve aircraft handling characteristics and enhance safety for following aircraft. Such devices increase the effective aspect ratio of a wing without greatly increasing the wingspan. Extending the span would lower lift-induced drag, but would increase parasitic drag and would require boosting the strength and weight of the wing. At some point, there is no net benefit from further increased span. There may also be operational considerations that limit the allowable wingspan (e.g., available width at airport gates). Wingtip devices help prevent the flow around the wingtip of higher pressure air under the wing flowing to the lower pressure surface on top at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glass-reinforced Plastic
Fiberglass (American English) or fibreglass (Commonwealth English) is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet called a chopped strand mat, or woven into glass cloth. The plastic matrix may be a thermoset polymer matrix—most often based on thermosetting polymers such as epoxy, polyester resin, or vinyl ester resin—or a thermoplastic. Cheaper and more flexible than carbon fiber, it is stronger than many metals by weight, non-magnetic, non-conductive, transparent to electromagnetic radiation, can be molded into complex shapes, and is chemically inert under many circumstances. Applications include aircraft, boats, automobiles, bath tubs and enclosures, swimming pools, hot tubs, septic tanks, water tanks, roofing, pipes, cladding, orthopedic casts, surfboards, and external door skins. Other common names for fiberglass are glass-reinforced plastic (GRP), glass-fiber reinforced plastic (GFRP) or GFK ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schempp-Hirth Discus
The Schempp-Hirth Discus is a Standard Class glider designed by Schempp-Hirth. It was produced in Germany between 1984 and 1995 but has continued in production in the Czech Republic. It replaced the Standard Cirrus. It was designed by Klaus Holighaus. Design and development The Discus was the first production sailplane to have a distinctive swept-back leading edge. This is now common in contemporary sailplanes. Studies had long shown that the ideal wing for minimizing induced drag should be an elliptic planform. To keep production costs down, a triple-trapezoidal approximation of this shape was adopted for the Discus. The wing section was also new. Winglets were only available towards the end of the production run, though many have been retro-fitted. The fuselage and tail were adapted from the Schempp-Hirth Ventus. A version with a narrow fuselage is called the Discus 'a' and the wider fuselage version is called the 'b'. The fuselage is made of glass-reinforced plastic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portugal
Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of the Azores and Madeira. It features the westernmost point in continental Europe, and its Iberian portion is bordered to the west and south by the Atlantic Ocean and to the north and east by Spain, the sole country to have a land border with Portugal. Its two archipelagos form two autonomous regions with their own regional governments. Lisbon is the capital and largest city by population. Portugal is the oldest continuously existing nation state on the Iberian Peninsula and one of the oldest in Europe, its territory having been continuously settled, invaded and fought over since prehistoric times. It was inhabited by pre-Celtic and Celtic peoples who had contact with Phoenicians and Ancient Greek traders, it was ruled by the Ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
