Straight-20
At the time of the Wenchuan earthquake, we deeply felt that our army’s helicopters had serious shortages in both quantity and quality. Especially in the plateau areas, domestic helicopters could not fly up. Only the American Black Hawk and Russia's MiG-26 can carry out high-intensity transportation support missions in plateau areas. The emergence of the Z-20 filled the long-term lack of 10-ton general-purpose helicopters in our army, and truly “plugged in the wings for the Chinese Army. Z2z
was at the 14th Aerospace Laurel Award Ceremony on November 18th. He Long March No. 5, Beidou No. 3, Flying Leopard and other domestic heavy equipment won awards. Chief Deng Jinghui led the team has been in the helicopter field for more than 30 years, leading the team to break through a series of core key technologies, Z-20 turned out to be a reality in China The helicopter from the third generation to the fourth generation. At the same time, CCTV military also publicly disclosed for the first time the shocking picture of the Zhi-20 test flight on the snow-covered plateau. The Zhi-20 truly has the capability of all-terrain and all-weather combat. Let the Z-20 fly in the extreme cold airspace of the plateau thanks to a technology. This is the helicopter rotor deicing technology that Deng Jinghui spent 20 years conquering. Before
, only the United States, Russia, and France had mastered the rotor deicing technology. However, in 2014, the AVIC Helicopter Institute finally conquered this universal technology urgently needed by China’s helicopters and became the fourth country in the world to master this technology. From this we can see how difficult the anti-icing technology of rotors is.
Black Hawk Helicopter
The American Black Hawk helicopter has such excellent high altitude safety flight ability because of its excellent rotor anti-ice technology. Generally, when a helicopter flies in a low temperature climate, the cold water droplets in the atmosphere will quickly gather on the high-speed rotating rotor. Ice is formed on the blades, which will cause a great risk.
first changes the aerodynamic shape of the rotor blades, reducing the performance of the helicopter, and in severe cases can cause the aircraft to lose control and stall or even crash; secondly, it can affect the dynamic characteristics of the blades , It is easy to make the helicopter out of control; some ice will fall off the rotor and damage other parts of the helicopter. For example, in 1980, a newly introduced "Super Hornet" helicopter from China crashed in Shandong due to icing of the rotor.
China does not have a domestically-made helicopter that uses rotor anti-deicing technology, which limits the use of helicopters in harsh climates and plateau environments. China is completely backward in this field, including icing detection technology and new anti-icing technology, which are world problems. It is reported that China has negotiated with Russia on the transfer of rotor anti-icing technology but was flatly rejected, so in any case the core technology has to rely on itself. According to
analysis, especially in the context of the continuous confrontation between China and India at the border, heavy helicopters in winter The role of supply, emergency use, wartime force projection, material supply, etc. is very prominent. It is worth noting that there is a rare white painted Z-20 at the end of CCTV's announcement video, which is indeed more suitable for combat on the plateau.
