AC313-made helicopter with seven technical advantage in the high altitude flight
Domestic AC313 large helicopter static display.
3 18 morning, Jingdezhen, China’s Lu airport helicopter research and production base, “Outlook” Newsweek has witnessed China’s independently developed the first large-scale civilian aircraft helicopter – AC313 successful first flight. According to our understanding of the project in 2008, “5.12″ Wenchuan earthquake, the official end of the year started, the aircraft industry Helicopter Design Institute deputy chief, chief researcher Xu Chaoliang as AC313 helicopters.
The 45-year-old “Young Marshal” organized a team of young researchers, in less than a year and a half to fill our gaps in the development of large civilian helicopters, so that China and Europe, the United States, Russia, as have the ability to independently develop large-scale helicopter.
professional aviation authorities, according to analysis, AC313 helicopter maximum takeoff weight of 13.8 tons, is the first full accordance with the requirements of airworthiness regulations and procedures for development of large civil transport helicopters, but also our own development and production the only large-scale helicopter, machine performance to achieve world-class level of the third generation of helicopters, transport helicopters to achieve our overall technological level of a large leap.
“It is not only a far advanced helicopters, is a modern advanced technology and includes the concept of helicopter development platform.” R & D units, helicopter companies in the aircraft industry official said to the Articles, involved in the development of the technical staff AC313 machine is highly optimistic about the prospects, “AC313 not only created the first Chinese and the Chinese civil helicopter opened the door to the future.”
According to statistics, China’s average 800 million people with a civilian helicopter eloquence, as the world average of 1/50. China’s vast territory, is a geological disaster-prone countries, especially the process of urbanization accelerates, AC313 civilian helicopter platform has great market potential.
seven technical advantage
Previously, China’s helicopter research and production systems, has independently developed straight-8, straight -9, -11 straight three platforms, more than 30 helicopter models. Straight-8 aircraft from the mid-1970s started to develop, which lasted nearly 10 years until the mid-1980s was successful maiden flight. Straight-11 machine started to develop in 1989, lasted five years to achieve a successful maiden flight.
Central Air Industrial Chang Fei companies and large-scale helicopter jointly developed by the civilian helicopter AC313, drawing on existing models developed platform, relying on domestic technological innovation, the use of digital co-design and manufacturing means, from the beginning detailed design, After parts manufacturing, the Ministry of loading, assembly, until the completion of the ground running test, and witnessed by the airworthiness tracking and review, in less than a year’s time, to complete a prototype trial, to flight status, to create our the miracle of the development process of civil helicopters.
Xu Chaoliang chief told the publication, “AC313 helicopters composite ball flexible rotor system, full authority digital electronic engine regulation and control, large-scale composite structures, integrated avionics systems, digital design and manufacturing and latest airworthiness safety standards for the signs, to achieve our overall technological level of large transport helicopters by the second generation to third generation leap. “
functional advantage, he introduced seven major helicopter AC313 characteristic:
– safe. Equipped with three engines, one engine in case of failure to continue the flight, in case of failure of two engines can be close to landing, greatly improving the crew’s survival probability.
– three anti-good. Strict accordance with the anti-salt, anti-heat, anti-fungal standard design, suitable for marine weather conditions and other harsh environments.
– a large space. Effective volume of 23.5 m3 cabin, high 1.83 meters, ordinary Chinese people can walk upright in them. Equipped with comfortable seats and interior air, as needed can be converted into a VIP jet.
– carrying ability. For cargo transportation, cargo cabin up to 4 tons, or an external lifting 5 tons. Used for personnel transport, the crew can carry up to 27, 15 stretchers or transport medical personnel and a chair and table. Cabin optional manual or electric winch, mooring equipment left on the floor, for easy handling and fixed goods.
– a long voyage. Inside the fuel tank full of oil a maximum range of 900 kilometers, carrying three tank transitions, the transition range may be increased to 1400 km or more.
– excellent handling performance. Ingenious control system design, the total distance and vertical and horizontal linkage to the manipulation, combined with four-axis autopilot, working load is small, good flying qualities.
– wide range of applications. At -40 ℃ ~ +50 ℃ temperature range of normal use, the maximum altitude up to 6000 meters in altitude of 4,500 meters of the airport landing.
AC313 body aerodynamic shape optimization, advanced airfoil rotor blades and configuration, rotor hover efficiency, tail and strong lateral wind, breaking the large transport helicopter flight performance of China’s limited technical bottlenecks, altitude flight with the ability to better meet the complex mountainous regions of the demanding requirements of the helicopter flight performance.
particular concern is the maximum altitude of up to 6,000 meters and maximum range of 900 kilometers technical indicators, means that China finally has a mission to meet a variety of motorized transport the whole territory of the rotor transport aircraft.
earthquake’s “mission model”
2008 years “5.12″ Wenchuan earthquake, a sudden disappearance of tens of thousands of compatriots life. Means of transport as the most effective relief, when our country is only 150 participated in the rescue helicopter, which is only 30 civilian helicopters, helicopter companies in the aircraft industry produced a total of straight 8-type machine 10 off disaster. Earthquake relief, compared with the flourish of foreign helicopters, highlights a serious shortage of home-made helicopters, lacks performance and other issues. In particular, China’s small and medium civilian helicopter to the main plateau, heavy is almost empty, not many high-performance medium.
8 straight in the relief line to maintain the normal course of the flight-type machine, the cadres and workers in the aircraft industry, witnessed and realized the disaster the government and people of more outstanding the expectations of a large helicopter, the heart is more firmly “Development of advanced medium-sized civilian helicopter, the helicopter world to catch up the level of development,” the persistent belief. Accelerate the development of China-made helicopter, helicopter to meet the government and the public’s demand to become parties to a consensus. In the central decision-making support, the aircraft industry accelerated the pace of development of large civilian helicopters. June 2009, Premier Wen Jiabao pointed out inspection in Hunan, “Let the small aircraft, helicopters and large aircraft of various types along the skies.”
AVIC helicopter Wang Bin, general manager, said, “My team and I know that national defense can not do without advanced technology, excellent performance, to meet the needs of different military military helicopter; national emergency rescue is the need to adapt to our weather and geographical conditions, with a reasonable tonnage of professional facilities and is not subject to external factors, improving the control of the helicopter industry’s strong support of national state-owned trust, civil forward to doing my part, but myself the courage to accelerate the development of national helicopter industry, is our consistent pursuit and mission. “
civilian helicopters for the existing model of domestic situation, adapt to our rescue system and national economic development needs, from research, to discuss the decision-making, From the design, development to the organization of production, the helicopter company in the aviation industry to accelerate the pace of independent research.
helicopter as a large investment, high technology, long production cycle of the modern product, without any research and development units and production companies have the slightest careless. AVIC helicopter AC313 development stage company, organization market research team visited seven civilian user units, and a police equipment users and the Bureau of Finance Ministry of Public Security to carry out research, from the civilian market, police on the market and the foreign trade market comprehensive analysis to assess the AC313 helicopters in the next 20 years, the domestic market prospects.
is in this context, the performance reached the world advanced level of large civil helicopters – AC313 helicopter to the fore.
“Young Marshal” Xu Chaoliang
introduced AC313 helicopters, most say is the chief designer. July 1987 graduated from the Nanjing Institute of helicopter aviation design professional Xu Chaoliang, participate in over 20 years, has been responsible for the heavy task of research, took part in straight-8, straight -9, -11, more than 10 straight helicopter models development work.
2001 annual self-access learning, University of California After returning home, Xu Chaoliang direct -8 series helicopters began hosting design research in recent years and is committed to the development of AC313 large civilian helicopters. In addition, he also presided over the space and aerospace training equipment overweight seat design study for China’s astronaut training and the “Shenzhou” series of spacecraft into space to make a contribution. Has received several honors, including the development of aerospace training equipment overweight, “Defence Science and Technology Progress Award”; direct -8 model development, “the defense industry a first personal weapons and equipment development.”
“He has a strong sense of innovation and broad expertise, long-term vision and strong cohesion”, responsible for the AC313 helicopters at a total structure technology teacher assistant Zhu Minfeng commented Xu Chaoliang. In order to meet AC313 helicopter flight in the alpine region, he proposed an increase in auxiliary power unit programs and to expand the types of applications; in order to improve the comfort of the machine, he determined to increase a body about the emergency doors and hanging elevator doors, windows, improved cabin lighting design; To improve security, he insisted on a 30-minute drive to the dry run test … …
AC313 Sun project team members about a development of the East Red highlighted examples, flight time is determined in the model, leaving development of the technical staff time is actually very tight. However, major changes in the short-wing issue or a small change needed to make decisions, Sun Dong-Hong Xu Chaoliang sought the views of others. Xu Chaoliang asked if the big change, then the success rate of how many to grasp? Sun Dong-Hong answer seven or eight percent of the grasp.
Xu Chaoliang immediately decided to major changes in the test, he said, “If this test fails, the progress of our development will be affected, but if successful progress can be shortened two to three months for the entire model developed to provide better guarantees, so it is worthwhile adventure. “After a charge of airworthiness aspects of the agreement, the trial was finally done in the Year of the Tiger Chinese New Year eve.
Sun Dong-hong said, AC313′s research has been able to in a very short period of time a breakthrough, the parties have been able to participate in collaborative research agreement, there is a very crucial factor, which is Xu Chaoliang project team When establishing a new management model. This model is the core of the project started at the beginning on the first clean technology status, to determine the complete list of the technical state. This list is very detailed, from the system, overall, eleven detailed list of the various aspects of technology, specific to each set of drawings and parts. Its advantage is the integration of production design can be implemented to ensure that the plans and processes in parallel. Technical state of the list is made based on map, but also process the catalog, so that both the design and production done well aware.
team to play everyone’s intelligence. Sparks of wisdom in the concentration of a regular meeting every Sunday collision. We compared the weekly meetings, “Landlords” at the meeting, Xu Chaoliang organization we find the problem, about the problem, a heated argument and confrontation of ideas after the harvest is the answer. Production plant personnel participate in the discussion, development and manufacture of the two sides formed a close working relationship. “Different opinions are resolved at the meeting, after we will of course keep in step.” Sun Dong-Hong personal experiences.
pay back all of these, is to lead the research team sought to Xu Chaoliang dry out the best civilian helicopter made a “ambition.” Moreover, Xu Chaoliang and his research team from the outset not to AC313 as a model for this view alone, he heart of the model is a complex, AC313 their design performance in the long term applications.
order to achieve long-term vitality of the cockpit layout and design, and Xu Chaoliang have raised a high standard, repeated selection of programs that seek the best design. It can be said Xu Chaoliang and his team build a new platform, AC313, based on our outlook for the future of large civil helicopters worth the wait.
AC313 helicopter Market
AC313 helicopter with a large tonnage, moderate, full-featured, versatile, and price advantage. In the beginning of project design, the helicopter company in the aviation industry made a solid market demand analysis, widely used to tease out the various areas and market potential:
forestry sector aviation forest. Use of helicopters for air forest protection, you can discover the fire while landing or cable down the rapid fire suppression personnel, or direct fire sprinklers will be nipped in the incipient stage, the losses to a minimum. Currently, the forestry sector, forest armed police have purchased eight straight 8 firefighting helicopter for forest fire fighting, transport supplies and so on. Next 10 to 15 years, China needs to model various types of forest fire fighting helicopter 180, AC313 helicopters which will be its main models, the demand of about 80.
in inaccessible or difficult to build fixed-wing airport where the helicopter can be used in short-distance transport services. The transport sector to develop a larger number of plans to buy helicopters for the rescue of marine salvage, transportation, in the “Eleventh Five-Year” period has begun implementing. Short-distance transport services, maritime rescue, life-saving salvage require large and medium-sized helicopters, the next 10 to 15 years to be large, about 40 medium-sized helicopters.
disaster relief. Disaster relief is a national emergency response system, the current national, provincial and municipal district disaster relief emergency centers have generated much-needed search and rescue, medical care, transport relief supplies to large and medium-sized helicopters, including natural disasters and the field of major accidents and more kind of rescue. Demands from the rescue helicopter in the Western developed countries such as Britain, France, Germany and other countries basically every 50 kilometers on a landing point; per 200 kilometers in the United States to establish a landing point. According to the needs of the Chinese rescue region, at least 300 bases, about 1000 light, medium and heavy helicopters.
offshore oil drilling and exploration services. China’s general aviation industry in the offshore oil drilling and exploration services, general aviation has been far more than in other fields. AC313 helicopters offshore safety, and floating with the water landing capabilities, is ideal for offshore operations. Oil, gas company has been using helicopters for offshore oil platforms and onshore oil transportation services, and has developed programs to increase the number and use of helicopters to carry out oil exploration, transportation services, etc.; SOA requires a large helicopter for scientific investigation . Next 10 to 15 years to be large, about 80 medium-sized helicopters.
the power sector for the erection of high voltage lines, lifting equipment and cabling, testing and so on. 2008 South snowstorm to the electricity sector, power transmission lines caused huge losses, the power sector on the development and application of helicopter power exploration, high-voltage lines set up, lifting equipment, wiring, power line patrol operations testing and increasing demands for This type of helicopter for AC313 is a good development opportunity for the next 10 to 15 years to be large, about 30 medium-lift helicopter.
medical care. Helicopters can be used for disaster areas, remote areas, inaccessible local implementation of emergency medical aid, sick and wounded transfer. In the establishment of China’s aviation emergency medical system, AC313 helicopter has enough room for air can be easily converted to the operating table, the implementation of air operations. Next 10 to 15 years to be large, medium-sized medical rescue helicopter about 20.
urban services will become the future of general aviation applications is an important breakthrough. In order to improve the comprehensive management of the city, police, fire and customs rapid response capability, the use of aircraft, helicopters is imperative. Abroad in this field, the use of helicopters, a high degree, but only at the initial and in our stage of development. Present – some medium-sized cities on the requirements of general aviation services, growing around such as police, city fire, emergency medical services in cities such as general aviation flight operations in the future will continue to grow. Next 10 to 15 years to be large, about 20 medium-lift helicopter.
air tour is becoming a new fashion tourism projects, visit our aviation market has great potential. China’s tourist attractions and more scenic spots within the many and scattered, there are many places to use ground transportation is very convenient. Although China’s aerial sightseeing, charter and other projects have not short-scale and industrial, but with the national economic development, the approval procedures simplified, China’s tourism market is expected to really start the helicopter in the next 5 to 10 years has been rapid development the next 10 to 15 years to be large, about 20 medium-lift helicopter.
security system widely used, demand urgent. Main uses include personnel and material transport, urban fire and so on. In personnel transport, the implementation of urgently needed anti-terror task, especially in southern China, northwestern frontier, anti-terrorism situation is very grim. Fire safety in the city, police equipment, fire fighting equipment can be directly implemented with a large urban fire-fighting helicopter operations. The next 10 to 15 years in this area requires roughly 35 large helicopters.
through the domestic civil helicopter market analysis, combined with our general aviation business development, market research and marketing the show, the next 10 to 15 years, large and medium civilian helicopter market in the domestic demand about 420.
It is reported that, in view of AC313 is a large helicopter at the end of 2010 aviation airworthiness certificate can be obtained, taking into account the background of gradual opening up of domestic airspace, and the domestic civil helicopter market maturity and market share of domestic helicopter, 2020 years, AC313 helicopter in the domestic civilian market demand for the 100 or so.
in the international market, AC313 helicopter in international large and medium helicopter market with many competitive advantages, the existing number of domestic and foreign companies and institutions interested in buying and agents AC313 helicopters, have been the intention of receiving the order 32, mainly from Southeast Asia, West Asia, Africa and South America customers.
helicopter flight in the AC313 ceremony, CATIC International Leasing Co., Ltd., China Dragon representatives of the professional development of the airline and helicopter companies in the aviation industry signed the five AC313 Order contract. Cuilian Jun Riverside