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AVIC AC332
The AVIC AC332 is a Chinese civil helicopter that is under development by the Aviation Industry Corporation of China (AVIC). The AC 332's chief designer at AVIC is Li Shengwei. The aircraft is intended to be type certificate, type certified for production. The design prototype had its first flight on 7 April 2023. The AC332 designation was previously applied to an unrelated project for a scaled down version of the Russian Mil Mi-26 that was to have first flown in 2032. Design and development The aircraft is intended as a utility helicopter for personnel transport, search and rescue and Police aviation, law enforcement, including high density altitude operations. The design features a single, four-bladed main rotor, a fenestron tail rotor, twin engines, an enclosed cabin and skid-type landing gear. The design has seating for two crew members and ten passengers. It is expected to have a lower price than comparable western helicopters. The aircraft has a gross weight of , a max ... [...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] |
Fenestron
A Fenestron (sometimes alternatively referred to as a fantail or a "fan-in-fin" arrangementLeishman 2006, p. 321.) is an enclosed helicopter tail rotor that operates like a ducted fan. The term ''Fenestron'' is a trademark of multinational helicopter manufacturing consortium Airbus Helicopters (formerly known as Eurocopter). The word itself comes from the Occitan term for a ''small window'', and is ultimately derived from the Latin word ''fenestra'' for ''window''.Prouty, Ray. ''Helicopter Aerodynamics'', Helobooks, 1985, 2004. p. 266. Like the conventional tail rotor it replaces, a Fenestron counteracts the torque generated by the main rotor. However, it differs from a conventional open tail rotor by being integrally housed within the tail boom. While conventional tail rotors typically have between two and six blades, Fenestrons have between seven and eighteen blades; these may have variable angular spacing so that the noise is distributed over different frequencies. By placing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2020s Chinese Civil Aircraft
S, or s, is the nineteenth letter of the Latin alphabet, used in the English alphabet, the alphabets of other western European languages and other latin alphabets worldwide. Its name in English is ''ess'' (pronounced ), plural ''esses''. History Northwest Semitic šîn represented a voiceless postalveolar fricative (as in 'ip'). It originated most likely as a pictogram of a tooth () and represented the phoneme via the acrophonic principle. Ancient Greek did not have a "sh" phoneme, so the derived Greek letter Sigma () came to represent the voiceless alveolar sibilant . While the letter shape Σ continues Phoenician ''šîn'', its name ''sigma'' is taken from the letter ''Samekh'', while the shape and position of ''samekh'' but name of ''šîn'' is continued in the '' xi''. Within Greek, the name of ''sigma'' was influenced by its association with the Greek word (earlier ), "to hiss". The original name of the letter "Sigma" may have been ''san'', but due to the earl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AVIC Aircraft
The Aviation Industry Corporation of China (AVIC) is a Chinese state-owned publicly-traded aerospace and defense conglomerate headquartered in Beijing. AVIC is overseen by the State-owned Assets Supervision and Administration Commission of the State Council. It is ranked 140th in the ''Fortune'' Global 500 list as of 2021, and has over 100 subsidiaries, 27 listed companies and 500,000 employees across the globe. AVIC is also the sixth largest defense contractor globally as of 2022 and second largest Chinese defense contractor with total revenue of $79 billion (from both defense and non-defense services). History Since being established on 1 April 1951 as the Aviation Industry Administration Commission, the aviation industry of the People's Republic of China has been through 12 systemic reforms. In 1994, Avic was among the large industrial state-owned enterprises of China which were selected for a pilot program of restructuring as state holding companies, thereby enabling parti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rotorcraft
This is a list of rotorcraft, including helicopters, autogyros, rotor kites and convertiplanes. A A-B Helicopters * A-B Helicopters A/W 95 Aero *Aero HC-2 Heli Baby Aero-Astra * Aero-Astra Okhotnik 1 Aero Eli Serviza * Aero Eli Serviza Yo-Yo 222 Aerokopter * Aerokopter AK1-3 Sanka Aerospace General * Aerospace General Mini-Copter Aérospatiale *Aérospatiale Alouette II *Aérospatiale Alouette III * Aérospatiale Cougar * Aérospatiale Dauphin * Aérospatiale Djinn * Aérospatiale Ecureuil *Aérospatiale Gazelle *Aérospatiale Lama *Aérospatiale Puma * Aérospatiale Super Frelon * Aérospatiale Super Puma Aerotécnica * Aerotécnica AC-11 * Aerotécnica AC-12 * Aerotécnica AC-14 Agusta * Agusta A103 * Agusta A104 Helicar * Agusta A105 * Agusta A106 * Agusta A109 * Agusta A115 * Agusta A119 Koala * Agusta A129 Mangusta * Agusta AB.102 * Agusta AZ.101G AgustaWestland *AgustaWestland AW101 * AgustaWestland AW109 * AgustaWestland AW109 Grand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turboshaft Engine
A turboshaft engine is a form of gas turbine that is optimized to produce shaft horsepower rather than jet thrust. In concept, turboshaft engines are very similar to turbojets, with additional turbine expansion to extract heat energy from the exhaust and convert it into output shaft power. They are even more similar to turboprops, with only minor differences, and a single engine is often sold in both forms. Turboshaft engines are commonly used in applications that require a sustained high power output, high reliability, small size, and light weight. These include helicopters, auxiliary power units, boats and ships, tanks, hovercraft, and stationary equipment. Overview A turboshaft engine may be made up of two major parts assemblies: the 'gas generator' and the 'power section'. The gas generator consists of the compressor, combustion chambers with ignitors and fuel nozzles, and one or more stages of turbine. The power section consists of additional stages of turbines, a gear r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xiamen
Xiamen,), also known as Amoy ( ; from the Zhangzhou Hokkien pronunciation, zh, c=, s=, t=, p=, poj=Ē͘-mûi, historically romanized as Amoy, is a sub-provincial city in southeastern Fujian, People's Republic of China, beside the Taiwan Strait. It is divided into six District of the People's Republic of China, districts: Huli District, Huli, Siming District, Siming, Jimei District, Jimei, Tong'an, Haicang District, Haicang, and Xiang'an. All together, these cover an area of with a population of 5,163,970 as of 2020 Chinese census, 2020 and estimated at 5.35 million as of 31 December 2024. The urbanization in China, urbanized area of the city has spread from its original island to include most parts of all six of its District of the People's Republic of China, districts, as well as 4 Zhangzhou districts (Xiangcheng District, Zhangzhou, Xiangcheng, Longwen, Longhai District, Longhai and Changtai), which form a built-up area of 7,284,148 inhabitants. This area also connects with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airbus H145
The Airbus Helicopters H145, formerly the Eurocopter EC145, is a twin-engine light utility helicopter developed and manufactured by Airbus Helicopters. Originally designated as the ''BK 117'', the H145 is based upon the MBB/Kawasaki BK 117, MBB/Kawasaki BK 117 C1, which became a part of the combined Eurocopter line-up in 1992 with the merger of Messerschmitt-Bölkow-Blohm's helicopter division of Daimler-Benz into Eurocopter. The helicopter was initially named EC145; an updated version, EC145 T2, was renamed H145 in 2015. The helicopter was significantly updated in the 2020s with first a fenestron replacing the traditional tail rotor, followed later by a 5-blade main rotor head. The H145 is a twin-engine aircraft and can carry up to nine passengers along with two crew, depending on customer configuration. The helicopter is marketed for passenger transport, corporate transport, emergency medical services (EMS), search and rescue, parapublic and utility roles. Military variants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bell 429
The Bell 429 GlobalRanger is a light, twin-engine helicopter developed by Bell Helicopter and Korea Aerospace Industries. The first flight of the prototype took place on February 27, 2007,"Bell Flies 429, Stretches Program" . ''Rotor & Wing'', April 2007. and the aircraft received type certification on July 1, 2009."Bell 429 Achieves Certification" . Bell Helicopter, July 1, 2009. The Bell 429 is capable of single-pilot IFR and Runway Category A operations. Development The impetus for developing the Bell 429 came primarily from the |
Service Ceiling
With respect to aircraft performance, a ceiling is the maximum density altitude an aircraft can reach under a set of conditions, as determined by its flight envelope. Service ceiling Service ceiling is the density altitude at which the rate of climb drops below a prescribed value. The service ceiling is the maximum altitude of an aircraft during normal operations. Specifically, it is the density altitude at which flying in a clean configuration, at the best rate of climb airspeed for that altitude and with all engines operating and producing maximum continuous power, will produce a given rate of climb. A typical value might be climb, or on the order of climb for jet aircraft. The one-engine inoperative (OEI) service ceiling of a twin-engine, fixed-wing aircraft is the density altitude at which flying in a clean configuration, at the best rate of climb airspeed for that altitude with one engine producing maximum continuous power and the other engine shut down (and if it has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landing Gear
Landing gear is the undercarriage of an aircraft or spacecraft that is used for taxiing, takeoff or landing. For aircraft, it is generally needed for all three of these. It was also formerly called ''alighting gear'' by some manufacturers, such as the Glenn L. Martin Company. For aircraft, Stinton makes the terminology distinction ''undercarriage (British) = landing gear (US)''. For aircraft, the landing gear supports the craft when it is not flying, allowing it to take off, land, and taxi without damage. Wheeled landing gear is the most common, with skis or Seaplane, floats needed to operate from snow/ice/water and skids for vertical operation on land. Retractable undercarriages fold away during flight, which reduces drag (physics), drag, allowing for faster airspeeds. Landing gear must be strong enough to support the aircraft and its design affects the weight, balance and performance. It often comprises three wheels, or wheel-sets, giving a tripod effect. Some unusual land ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
