What if it rains during the National Day military parade?

Military parade is an important form to show the achievements of the armed forces and establish national self-confidence and pride. In particular, the annual National Day military parade is the focus of world attention, and its preparations need to be extremely meticulous and rigorous. Then, what if it rains during the National Day military parade? Today's calendar will be introduced to you.

There is a National Day military parade in the rain. In fact, it was not without rain in the history of China's National Day military parade. For example, the National Day military parade in 1956 was an unprecedented test for all the officers and men who were read at that time-the military parade was held in heavy rain. This year's military parade is also the only one in the National Day military parade after the founding of New China.

Sun Guozhen, an old man who served as the head coach of the National Day parade in the capital in 1950s, recalled that people celebrating the parade in the rain could hold umbrellas at that time, but the PLA parade could not. However, the heavier the rain, the higher the morale of the soldiers being read, and the more neatly they walk than other teams.

Lao Sunman Guozhen said that at that time, the parade troops concentrated on training in Beijing, training during the day, and engaging in cultural activities in addition to studying, watching plays and movies at night. Once, watching Peking Opera in the open-air concert hall of Zhongshan Park, it rained heavily and no one moved in their queue.

As long as the actors on the stage don't stop performing, the soldiers won't leave to show their respect for the actors. As a result, I watched the same play three times in a row. It happened that it rained three times, but I didn't finish it. But this style, the actors were very moved and said: This is called the People's Liberation Army!

At that time, Tiananmen Square and Chang 'an Avenue were far less flat than they are now. A heavy rain filled the puddle. However, when the reading team passed Tiananmen Square, the pace was still uniform, and the slogan was magnificent and full of energy. The hot air evaporated from them formed a mist. Far away, I saw the splash being kicked forcefully!

At the end of the military parade, the officers and men who were read were not only wet in shoes and trousers, but also wet in the upper body, and they could wring water from the waist down. However, they still successfully completed the task, and demonstrated the tenacious style, high morale and indomitable will of the battle-hardened people's army through the military parade.

Of course, the National Day rainstorm of 1956 still brought regret: the air parade in that year was forced to be cancelled. Sun Guozhen's wish to see our latest domestic jet fighter during the National Day military parade failed, and this wish was not realized until the National Day military parade in 1957.

What should I do if it rains during the National Day military parade? Later, people also tried to avoid rain during the National Day military parade. Today, our army has special forces that can change the weather. The troops are composed of meteorologists, officers and men from the air force transport aviation division and airborne troops-their "enemies" are clouds, rain and fog that may affect the National Day military parade.

By installing "big funnel" and "rocket launcher" on the transport plane to realize the operation of removing clouds and reducing rain, it is to sprinkle environmental protection catalysts on the plane. The plane used is a transport plane, and a square steel "big funnel" is installed in the middle of the cabin of each transport plane, and a rectangular "steel mouth" under the "big funnel" extends out of the belly of the plane.

This is a catalyst seeding device for eliminating clouds, and the catalyst is broadcast from this "steel nozzle". There is a crank on the seed metering device, which can calculate and accurately control the seed metering amount in seconds. The seeding device of rain-reducing catalyst is like a rocket launcher on an armed helicopter, and each seeding device can insert 10 silver iodide flame strips. When operating, the flame rod is not fired, and its shell will be brought back to the ground after burning.

Fog removal by turbojet engine on truck frame is another key point of weather modification operation, which is mainly aimed at the airport where the parade airborne echelon is stationed. Fog directly affects the take-off and landing of aircraft. When the visibility of the airport is lower than 1 km specified by the military parade, the fog will be blown away by the airflow sprayed by the fog eliminator.

The base of the demister is a truck, and each truck is equipped with a retired turbojet engine. This is a relatively mature practice, and there are similar devices abroad. General 1 demister for runway 10 or so. After working for 30 minutes, the horizontal visibility can be improved by 800 meters to 1000 meters for more than 30 minutes.

According to the simple principle of meteorology, the airflow lifts the water vapor to form a stable structure and becomes a cloud. If there is more and more water vapor in the cloud, it will combine with rain cores such as dust to form raindrops, and the saturated airflow will turn into rain and fall to the ground.

Cloud removal is mainly to spread catalyst in the cloud or at the top of the cloud to absorb the falling water in the cloud, and to suppress the upward airflow through this falling. At the same time, the aircraft adopts a serpentine flight route to increase the spreading area of the catalyst, thus achieving the purpose of dispersing the clouds. These catalysts are abundant in nature, and different catalysts should be selected in different situations, but from the perspective of environmental protection, environmental protection catalysts are generally chosen as far as possible.

Reducing rain is another way. If rain clouds appear outside the area, artificial precipitation enhancement is adopted to advance the rainfall. If there are rain clouds in this area, a large number of silver iodide flame strips will be ignited in the clouds, and excessive catalysis will be adopted to delay precipitation and achieve the purpose of reducing rain.

An important prerequisite for weather modification is to accurately forecast weather changes. To this end, the Operation Command will exclusively use the third generation aviation numerical forecast system of China. The system is based on a computer with 65,438+00 trillion operations per second. It can quantitatively forecast the global weather situation and aviation meteorological elements twice a day, with the time change accurate to 3 hours and the horizontal resolution accurate to 30 kilometers.

There are still many unknowns about weather modification. According to experts, there are many uncertain factors in weather change, and sometimes the energy of nature is irresistible to human beings, which increases the difficulty of artificial operation affecting the weather.

Weather modification requires certain conditions. For example, for low clouds with a thickness less than 1000m, a good effect can be achieved, but for low clouds with a thickness greater than 1000m, it is difficult to disperse them by manual operation. However, if the scope of the cloud is large, the catalyst scattered by the transport aircraft has little effect on the cloud.

The same is true of rain reduction. At present, there is no effective rainfall reduction method for large-scale rainfall with medium and small intensity in the world. There is another possibility: in case of bad weather, the operation plane cannot take off, which increases the difficulty of operation.

Of course, when encountering adverse weather during important activities such as the National Day military parade, this "special" unit that can change the weather will do its best to carry out weather modification operations as planned. Experts and officers and men all hope that the homework can get better results, and of course they hope that the day of the military parade will be sunny.

Learn more about horoscope encyclopedia, horoscope marriage, horoscope career, marriage fortune, horoscope of the god of wealth, emotional combination, seeing the other half, horoscope calculation, name speed matching, life fortune, compound opportunities. You can click on the bottom for online consultation (for entertainment only): /xz/