Recently, AS700 "Xiangyun" manned airship won 18 new orders, which is the largest single order in the domestic civilian manned airship field so far, indicating the market's full recognition of advanced domestic aviation products and injecting strong impetus into the vigorous development of China's low altitude economy. The "Xiangyun" manned airship was independently developed by the Special Aircraft Research Institute of China Aviation Industry Corporation (hereinafter referred to as "Special Aircraft Institute"). It is the first manned airship in China developed in accordance with airworthiness regulations and has complete independent intellectual property rights. Its successful research and development, as well as market-oriented promotion, are of great significance for improving China's general aviation spectrum and expanding new forms of low altitude tourism. How was the experience of riding on the "Xiangyun" manned airship? What "black technologies" are used for security protection? What other application scenarios are there? The reporter from Science and Technology Daily interviewed relevant experts on this matter. The "Xiangyun" manned airship, with a total length of 50 meters and a maximum range of 700 kilometers, can carry 10 people from the best altitude overlooking the beautiful mountains and rivers. The airship, with its characteristics of "low altitude slow flight, safety and reliability", can provide visitors with an immersive experience of "swimming in the painting" at the best viewing altitude of 100-300 meters, allowing them to overlook the beautiful scenery of the motherland's rivers and mountains. Flying low, slowly, and steadily, these advantages can make the 'Xiangyun' manned airship adept and at ease in low altitude tourism and other application scenarios. ”Lin Hong, a pilot of the manned airship "Xiangyun" at the Special Flight Station, said that flying low and slowly can allow tourists to see clearly and carefully. In addition, the 'auspicious cloud' flew very smoothly. Many passengers said after getting off the airship that it was more stable than taking a boat, and the flight noise was lower, which was within an acceptable range. Some passengers even made phone calls on the airship, "he said. Multiple 'black technologies' enhance safety, which is the lifeline of aircraft. The safety factor of airships is relatively high. ”Wang Binbin, deputy chief designer of the "Xiangyun" manned airship at the Special Flight Institute, told reporters that from the analysis of aircraft lift components, the lift surfaces of fixed wing and rotary wing aircraft are thin and flat airfoils, while the capsule that provides lift for the airship is almost spherical. Therefore, no matter which angle the airflow comes from during flight, the airship is not prone to serious airflow separation hazards, which can effectively avoid the dangerous situation of stalling and falling. Wang Binbin further introduced that "Xiangyun" manned airship has used many "black technologies" to ensure safety - the airbag is made of high-strength, low leakage, low temperature resistant, anti-aging non-metallic multi-layer composite materials, which can effectively ensure the safety of the main structure; It has the functions of emergency release of helium gas and emergency throwing of ballast water. In the event of complete loss of power or malfunction of the control system of the airship, it can also slowly land the airship to ensure the safety of passengers; By using vector control technology, the thrust vector can be turned from -120 ° to+90 °, which not only enables the airship to have the ability of vertical short takeoff and landing, but also assists in controlling the airship's takeoff and landing in case of abnormal power, significantly enhancing safety. It can also be used for geological exploration and urban security. Currently, the 'Xiangyun' manned airship is mainly used for low altitude sightseeing tourism. In addition, we are actively expanding the scope of applications such as geological exploration and urban security. ”Wang Binbin said. In the field of scientific research exploration and surveying, the stable flight platform of airships can carry high-precision surveying equipment, remote sensing sensors and other instruments to perform tasks such as regional geological exploration, forestry resource monitoring, atmospheric environment sampling, etc. Especially in the process of geological exploration, the commonly used drones have many metal components, which can interfere with the observation instruments they carry. However, the majority of the "Xiangyun" manned airships are made of non-metallic materials, which can effectively improve the accuracy of exploration data. In the field of urban public services, the "Xiangyun" manned airship can be used for aerial security patrols, traffic flow monitoring, or serving as an aerial display platform for the city's image during large-scale events. At a previous concert in Jingmen, Hubei, the airship was equipped with security devices and transformed into a "security guard". As soon as his chubby image appeared in the air, it added another "flame" to the lively scene. Wang Binbin stated that the commercialization of the "Xiangyun" manned airship will effectively drive the development of the entire industry chain from research and development, manufacturing, operation and maintenance to personnel training and infrastructure construction, and become an important pivot to leverage the diversified development of China's low altitude economy. Its soaring indicates that the prelude to the "airship era" of general aviation in China is slowly unfolding. (New Society)