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Trixy Eye
The Trixy Eye is an Austrian tandem-seat autogyro designed and built by Trixy Aviation Products intended for police and military operators for the observation and reconnaissance roles. Design The Eye was developed from the Trixy G 4-2 R. It features a single main rotor, tricycle landing gear with wheel pants, a tail caster, 2 LED landing lights and 2 LED navigation and strobe lights on the cabin sides, a Trixy 912 Ti or Rotax 912ULS engine in pusher configuration, and a pedal actuated main rotor pre-rotator to reduce the takeoff roll. An optionally heated cabin with removable canopy glass, UV-protected canopy and windshield and a defroster fan built into the instruments panel provide climate control. The aircraft's fuel and electrical system are redundant and alternative battery and mechanical instruments are provided. Fuel is stored in two M.E.Rin anti-explosion tanks. The rear seat can be fitted with simplified controls to emergency use and Kevlar armour is optional. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autogyro
An autogyro (from Greek and , "self-turning"), also known as a ''gyroplane'', is a type of rotorcraft that uses an unpowered rotor in free autorotation to develop lift. Forward thrust is provided independently, by an engine-driven propeller. While similar to a helicopter rotor in appearance, the autogyro's rotor must have air flowing across the rotor disc to generate rotation, and the air flows upwards through the rotor disc rather than down. The autogyro was invented by Spanish engineer Juan de la Cierva in an attempt to create an aircraft that could fly safely at low speeds. He first flew one on 9 January 1923, at Cuatro Vientos Airfield in Madrid. The aircraft resembled the fixed-wing aircraft of the day, with a front-mounted engine and propeller. Cierva's autogyro is considered the predecessor of the modern helicopter. The success of the autogyro garnered the interest of industrialists and under license from Cierva in the 1920s and 1930s, the Pitcairn & Kellett compan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kevlar
Kevlar (para-aramid) is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora. Developed by Stephanie Kwolek at DuPont in 1965, the high-strength material was first used commercially in the early 1970s as a replacement for steel in racing tires. It is typically spun into ropes or fabric sheets that can be used as such, or as an ingredient in composite material components. Kevlar has many applications, ranging from bicycle tires and racing sails to bulletproof vests, all due to its high tensile strength-to-weight ratio; by this measure it is five times stronger than steel. It is also used to make modern marching drumheads that withstand high impact; and for mooring lines and other underwater applications. A similar fiber called Twaron with the same chemical structure was developed by Akzo in the 1970s; commercial production started in 1986, and Twaron is now manufactured by Teijin. History Poly-paraphenylene terephthalamide (K2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shaanxi Baojii Special Vehicles Lie Ying Falcon
The Shaanxi Baojii Special Vehicles Lie Ying Falcon ("Semi-Open Cabin With Tandem Seats Falcon"), otherwise known as Hunting Eagle Strike Gyrocopter, is a Chinese autogyro that was designed and produced by the Shaanxi Baojii Special Vehicles Manufacturing Company of Baoji in Shaanxi province. The aircraft was supplied complete and ready-to-fly.Tacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', page 199. Flying Pages Europe SARL, 2015. The manufacturer is a well-known builder of armoured vehicles for police and military use and the aircraft was reportedly flying in 2015, but the original website was taken down in late 2016. However, there is a new company website. The aircraft gained media attention when it appears as part of 2019 China National Day military parade. Nicknamed "air tricycle", the aircraft reportedly costs approximately 40,000 Chinese Yuan. Design and development The Falcon was designed for police and military use as a surveillanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Winter War
The Winter War,, sv, Vinterkriget, rus, Зи́мняя война́, r=Zimnyaya voyna. The names Soviet–Finnish War 1939–1940 (russian: link=no, Сове́тско-финская война́ 1939–1940) and Soviet–Finland War 1939–1940 (russian: link=no, Сове́тско-финляндская война́ 1939–1940) are often used in Russian historiographybr>В.Н. Барышников. От прохладного мира к Зимней войне. Восточная политика Финляндии в 1930–е годы. Санкт-Петербург, 1997.; О.Д. Дудорова. Неизвестные страницы Зимней войны. In: Военно-исторический журнал. 1991. №9.; Зимняя война 1939–1940. Книга первая. Политическая история. М., 1998. – ; ttp://www.otvaga2004.narod.ru/photo/winterwar/wwar1.htm М. Коломиец. Танки в Зимней войне 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kamov A-7
The Kamov A-7 is a Soviet two-seat wing-type autogyro with a three-blade rotor, developed by Nikolai Kamov and built by the Central Aerohydronamic Institute (TsAGI). It was the world's first combat autogyro and the first mass-produced rotary-wing aircraft in the USSR. Two experimental machines were built, the A-7 and A-7bis, and five production aircraft (A-7-3A) were completed. History and development Development of the A-7 began in 1931 at TsAGI, which had previously manufactured the TsAGI A-4 autogyro. It was intended to be used for communications, reconnaissance, and artillery spotting, with possible use on naval vessels. The A-7 was completed in 1934. The A-7bis featured better aerodynamics and test flights for it began in 1937. The prototype of the lightened production aircraft, the A-7-3A, was completed in 1940. The autogyros were propelled by a 353 kW M-22 air-cooled engine with a maximum speed of 221 km/h. The tricycle landing gear featured hydraulic dampeners an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celier Xenon 4
The Celier Xenon 4 (also referred to by the manufacturer as the Xenon IV) is a Maltese autogyro designed by Raphael Celier and produced by Celier Aviation of Safi, Malta. The aircraft is supplied complete and ready-to-fly.Tacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', page 191. Flying Pages Europe SARL, 2015. Design and development The Xenon 4 is a development of the Celier Xenon 2 and Celier Xenon 3, with a newly designed fuselage and longer tailboom. It features a single main rotor, a two-seats-in side-by-side configuration enclosed cockpit, with some models offering a third seat. It has tricycle landing gear and a modified four cylinder, liquid and air-cooled, four stroke turbocharged Rotax 912 engine in pusher configuration. The fuselage is a monocoque made from carbon fiber reinforced polymer and features a cabin internal width of . The two-bladed rotor has a diameter of and a chord of . The aircraft has a typical empty weight of and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft Engine
An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Most aircraft engines are either piston engines or gas turbines, although a few have been rocket powered and in recent years many small UAVs have used electric motors. Manufacturing industry In commercial aviation the major Western manufacturers of turbofan engines are Pratt & Whitney (a subsidiary of Raytheon Technologies), General Electric, Rolls-Royce, and CFM International (a joint venture of Safran Aircraft Engines and General Electric). Russian manufacturers include the United Engine Corporation, Aviadvigatel and Klimov. Aeroengine Corporation of China was formed in 2016 with the merger of several smaller companies. The largest manufacturer of turboprop engines for general aviation is Pratt & Whitney. General Electric announced in 2015 entrance into the market. Development history * 1848: John Stringfellow made a steam engine for a 10-foot wingspan mod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Four Stroke
A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either direction. The four separate strokes are termed: #Intake: Also known as induction or suction. This stroke of the piston begins at top dead center (T.D.C.) and ends at bottom dead center (B.D.C.). In this stroke the intake valve must be in the open position while the piston pulls an air-fuel mixture into the cylinder by producing vacuum pressure into the cylinder through its downward motion. The piston is moving down as air is being sucked in by the downward motion against the piston. #Compression: This stroke begins at B.D.C, or just at the end of the suction stroke, and ends at T.D.C. In this stroke the piston compresses the air-fuel mixture in preparation for ignition during the power stroke (below). Both the intake and exhaust valves are clos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trixy 912 TI
Trixy Aviation Products GmbH is an Austrian aircraft manufacturer based in Dornbirn, that was founded by Rainer Farrag. The company specializes in the design and manufacture of autogyros.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 187. WDLA UK, Lancaster UK, 2011. History Trixy Aviation Products was founded in late 2010 with the aim of developing a roadable aircraft. Farrag recognized that most past roadable aircraft designs were not practical because they did not operate well on roads, due to the bulk of wings or rotors, parking problems, mechanical complexity and the high price tag associated with a dual use vehicle. Furthermore, one vehicle cannot fill all missions and aviation regulations restrict the operation of aircraft largely to airports, not permitting flying from residential driveways. Farrag's approach was instead his project TRIXYZ, an electric motorcycle that could be docked to create an airplane, autogyro, helico ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pusher Configuration
In an aircraft with a pusher configuration (as opposed to a tractor configuration), the propeller(s) are mounted behind their respective engine(s). Since a pusher propeller is mounted behind the engine, the drive shaft is in compression in normal operation. Pusher configuration describes this specific (propeller or ducted fan) thrust device attached to a craft, either aerostat (airship) or aerodyne (aircraft, WIG, paramotor, rotorcraft) or others types such as hovercraft, airboat and propeller-driven snowmobiles. "Pusher configuration" also describes the layout of a fixed-wing aircraft in which the thrust device has a pusher configuration. This kind of aircraft is commonly called a pusher. Pushers have been designed and built in many different layouts, some of them quite radical. History The rubber-powered "Planophore", designed by Alphonse Pénaud in 1871, was an early successful model aircraft with a pusher propeller. Many early aircraft (especially biplanes) were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austria
Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous city and state. A landlocked country, Austria is bordered by Germany to the northwest, the Czech Republic to the north, Slovakia to the northeast, Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the west. The country occupies an area of and has a population of 9 million. Austria emerged from the remnants of the Eastern and Hungarian March at the end of the first millennium. Originally a margraviate of Bavaria, it developed into a duchy of the Holy Roman Empire in 1156 and was later made an archduchy in 1453. In the 16th century, Vienna began serving as the empire's administrative capital and Austria thus became the heartland of the Habsburg monarchy. After the dissolution of the H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotax 912ULS
The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. It features liquid-cooled cylinder heads and air-cooled cylinders. Originally equipped with carburetors, later versions are fuel injected. Dominating the market for small aircraft and kitplanes, Rotax produced its 50,000th 912-series engine in 2014. Originally available only for light sport aircraft, ultralight aircraft, autogyros and drones, the 912-series engine was approved for certified aircraft in 1995. Design and development The Rotax 912 was first sold in 1989 in non- certificated form for use in ultralights and motorgliders. The original 912 UL engine has a capacity of and a compression ratio of 9.1:1. The engine differs from previous generation aircraft engines (such as the Lycoming O-235) in that it has air-cooled cylinders with liquid-cooled heads and uses a 2.43:1 PSRU reduction gearbox to reduce the engine's relatively high 5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
