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Electric Aircraft
An electric aircraft is an aircraft powered by electricity. Electric aircraft are seen as a way to reduce the environmental effects of aviation, providing zero emissions and quieter flights. Electricity may be supplied by a variety of methods, the most common being electric battery, batteries. Most have electric motors driving propellers or turbines. Crewed flights in an electrically powered airship go back to the 19th century, and to 1917 for a tethered helicopter. Model aircraft#Electric power, Electrically powered model aircraft have been flown at least since 1957, preceding the small unmanned aerial vehicles (UAV) or drones used today. Small Unmanned aircraft system, UAS could be used for parcel deliveries, and larger ones for long-endurance applications: aerial imagery, surveillance, telecommunications. The first crewed free flight by an electrically powered aeroplane, the Militky MB-E1, MB-E1, was made in 1973, and most crewed electric aircraft today are still only e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pipistrel Velis Electro Sn003 LJAJ Left
Pipistrel d.o.o Ajdovščina is a Slovenian Ultralight aviation, light aircraft manufacturer established in 1989Or 1989... --> by Ivo Boscarol and based in Ajdovščina. Its facilities are located in Ajdovščina, Slovenia, and near Gorizia, Italy. By March 2019, Pipistrel had produced more than 2000 aircraft. In April 2022, the company was purchased by Textron. History Due to legal restrictions imposed by the Yugoslavian government during the 1980s, Pipistrel's first aircraft was flown secretly in the evening between dusk and dark. The flying times and triangular shape of the hang-glider style wings earned the aircraft the nickname "bats," which was adopted by the company naming themselves after the Italian word for bat, :wikt:it:pipistrello, pipistrello. Initially, Pipistrel produced only powered hang gliders designed by Ivo Boscarol, who produced experimental ultralight trikes with a group of his friends as a private enterprise starting in the mid 1980s. The first serial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VTOL
A vertical take-off and landing (VTOL) aircraft is one that can takeoff and landing, take off and land vertically without relying on a runway. This classification can include a variety of types of aircraft including helicopters as well as thrust-vectoring fixed-wing aircraft and other hybrid aircraft with powered helicopter rotor, rotors such as cyclogyro, cyclogyros/cyclocopters and gyrodynes. Some VTOL aircraft can operate in other modes as well, such as CTOL (conventional take-off & landing), STOL (short take-off & landing), or STOVL (short take-off & vertical landing). Others, such as some helicopters, can only operate as VTOL, due to the aircraft lacking landing gear that can handle taxiing. VTOL is a subset of V/STOL (vertical or short take-off & landing). Some aerostat, lighter-than-air aircraft also qualify as VTOL aircraft, as they can hover, takeoff and land with vertical approach/departure profiles. Electric vertical takeoff and landing aircraft, or eVTOLs, are being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio-controlled Aircraft
A radio-controlled aircraft (often called RC aircraft or RC plane) is a small flying machine that is radio controlled by an operator on the ground using a hand-held radio transmitter. The transmitter continuously communicates with a receiver (radio), receiver within the craft that sends signals to servomechanisms (servos) which move the Flight control surfaces, control surfaces based on the position of joysticks on the transmitter. The control surfaces, in turn, directly affect the orientation of the plane. Flying RC aircraft as a hobby grew substantially from the 2000s with improvements in the cost, weight, performance, and capabilities of motors, battery (electricity), batteries and electronics. Scientific, government, and military organizations are also using RC aircraft for experiments, gathering weather readings, aerodynamics, aerodynamic modeling, and testing. A wide variety of models, parts, and styles is available for the DIY market. Nowadays, distinct from recreational c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Free Flight (model Aircraft)
Free flight is the segment of Model aircraft, 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 ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La France (airship)
The ''La France'' was a French Army non-rigid airship launched by Charles Renard and Arthur Constantin Krebs on August 9, 1884. Collaborating with Charles Renard, Arthur Constantin Krebs piloted the first fully controlled free-flight with the ''La France''. The long, airship, electric-powered with a zinc-chlorine flow battery completed a flight that covered in 23 minutes. It was the first full round trip flight with a landing on the starting point. On its seven flights in 1884 and 1885 the ''La France'' dirigible returned five times to its starting point. Hangar The ''La France'' was constructed in Hangar "Y" at Chalais-Meudon near Paris in 1879. Hangar "Y" is one of the few remaining airship hangars in Europe. Specifications See also *Timeline of hydrogen technologies This is a timeline of the history of hydrogen technology. Timeline 16th century * c. 1520 – First recorded observation of hydrogen by Paracelsus through dissolution of metals (iron, zinc, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthur Krebs
Arthur Constantin Krebs (16 November 1850 – 22 March 1935) was a French officer and pioneer in automotive engineering. Life Collaborating with Charles Renard, Krebs piloted the first fully controlled free-flight made in the French Army airship '' La France'', which was designed in 1884. The flight covered in 23 minutes. The flight landed back at its starting point. On its seven flights the ''La France'' dirigible returned five times to its starting point. Krebs and Renard shared the 1886 Ponti prize of the French ''Académie des sciences'' for their contribution to aerostation. Krebs inspired Jules Verne. In Verne's 1886 novel ''Robur The Conqueror'', he writes of "the striking experiments of Captain Krebs and Captain Renard". In 1888 Krebs and Gustave Zédé designed the first modern French submarine, the '' Gymnote''. The submarine was fitted with the first naval periscope and the first naval electric gyrocompass. The latter allowed the ''Gymnote'' to force ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Renard
Charles Renard (1847–1905) born in Damblain, Vosges, was a French military engineer. Airships After the Franco-Prussian War of 1870-1871 he started work on the design of airships at the French army aeronautical department. Together with Arthur C. Krebs and his brother Paul, in 1884 he constructed '' La France'', which made its maiden flight on 9 August 1884 at Chalais-Meudon, making a 23-minute circular flight. This was the first time that a flying machine made a flight which returned to the place of take-off. It was later exhibited at the Paris Exposition Universelle (1889). Preferred numbers Ca. 1877 he proposed a now widely used system of preferred numbers known as Renard numbers that was later reportedly published in an 1886 instruction for captive balloon troops, named after him in the 1920s and finally became international standard ISO 3. It helped the French army to reduce the number of different balloon ropes kept on inventory Inventory (British English) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaston Tissandier
Gaston Tissandier (November 21, 1843 – August 30, 1899) was a French chemist, meteorologist, aviator, and editor. He founded and edited the scientific magazine ''La Nature'' and wrote several books. His brother was illustrator Albert Tissandier. His son Paul became a well known aviator in his own right. Biography Gaston Tissandier was born in Paris in 1843. He studied chemistry and in 1864 became the head of the experimental laboratory of Union nationales. He was also a teacher at Association polytechnique. His interest in meteorology led him to take up aviation. His first trip in the air was conducted at Calais in 1868 together with , where his balloon drifted out over the sea and was brought back by an air stream of opposite direction in a higher layer of air. In September 1870, during the Franco-Prussian War, he managed to escape the besieged Paris by balloon. His most adventurous air trip took place near Paris in April 1875. He and companions Joseph Crocé-Spinelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Aviation
General aviation (GA) is defined by the International Civil Aviation Organization (ICAO) as all civil aviation aircraft operations except for commercial air transport or aerial work, which is defined as specialized aviation services for other purposes. However, for statistical purposes, ICAO uses a definition of general aviation which includes aerial work. General aviation thus represents the " private transport" and recreational components of aviation, most of which is accomplished with light aircraft. Definition The International Civil Aviation Organization (ICAO) defines civil aviation aircraft operations in three categories: General Aviation (GA), Aerial Work (AW) and Commercial Air Transport (CAT). Aerial work operations are separated from general aviation by ICAO by this definition. Aerial work is when an aircraft is used for specialized services such as agriculture, construction, photography, surveying, observation and patrol, search and rescue, and aerial adver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roland Berger
Roland Berger (born 22 November 1937) is a German entrepreneur, consultant and philanthropist. Life Roland Berger was born in Berlin in 1937 as Robert Altmann; his family name changed later, after his father, Georg L. Berger, married his mother in a second marriage. An early member of the Nazi Party (NSDAP), Georg Berger was chief bookkeeper of the Hitler Youth from 1936 to 1939, and in 1940 was appointed general manager of the aryanized Austrian food company Ankerbrot. In 1937 Hitler had appointed Georg Berger Ministerialrat in the Reichswirtschaftsministerium. Contrary to earlier statements by Roland Berger, Georg Berger was not an active opponent of the persecution of the Jews, nor was he ever sent to a concentration camp. Rather, Berger profited willingly off their persecution.Roland Berger (in German). ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
