bonanza

The caller was Yang Dongsheng's appointment tomorrow.

They are XX units, code-named 624.

Fortunately, Dongsheng Heavy Industry and Dongsheng Semiconductor also produced many products for the army.

In addition, in recent years, domestic enterprises and institutions have deepened reforms, and various departments have gradually liberalized.

Yang Dongsheng was able to contact them and seek cooperation.

"Mr. Yang, I'm really sorry, there is something wrong with the unit, I'm afraid we won't be able to keep the appointment!" said the other side of the phone.

"If you need my help, just ask!"

Since it was on the phone, Yang Dongsheng didn't ask any more questions.

After waiting for about an hour, Yu finally faxed an official document from his classmate.

In addition to the epicenter and magnitude, there is also the latest statistical information.

"In addition to the previous 10 million donation, our group has discussed and decided to add another [-] billion yuan worth of disaster relief supplies." Yang Dongsheng said.

In fact, it was Yang Dongsheng who made the calculations in his mind.

"Great!" Classmate Yu changed his words, "But I'm afraid the leader doesn't have time to see you now! There are still two counties that can't be contacted, landslides have buried the road, and the phone line has been cut off. Contact the Air Force, I hope they can send a plane to take a look!"

When Yang Dongsheng heard it, he remembered a piece of news he had read in his previous life.

The Air Force helicopter flew back and forth eight times, but ultimately failed to land.

In the end, only [-] airborne troops could be sent to the disaster area to open up a landing field for the helicopter.

"There was an earthquake just now, and there are frequent aftershocks at this time. There must be heavy rain in the disaster area. Even if the helicopter can find a place, it may not be able to descend. The fixed-wing aircraft passed by. It was too high to see anything; it was too low. It's a mountainous area over there, and I accidentally bumped into the mountain." Yang Dongsheng said.

It is said that in the 80s, when the "Black Hawk" helicopter was introduced, the "Chinook" helicopter was almost introduced at the same time.

It's a pity that the country is too poor. If we could introduce a few "Chinooks" at the beginning, here is a single-point hover...

"What should I do?"

"Use a drone!" Yang Dongsheng has been preparing for this day for a long time. "The flying speed of drones is slow, light in weight, and highly flexible. Some drones can land on muddy roads! There will be no casualties."

"Does the Air Force have such drones?" Student Yu was taken aback.

"Whether the Air Force has it, we don't know, but we have it! Just in Chang'an, a project we cooperated with the Academy of Sciences, the Electronic Technology Group, and the Fire Brigade was originally intended for agricultural use, but I feel that no one who evaluates the growth of crops It is still possible to use it to look at the terrain and find a suitable landing field for the helicopter!" Yang Dongsheng said.

"Can your drone fly over?" Yu's voice was full of excitement.

"The range of these planes is several thousand kilometers, so it's no problem to let them fly over! However, flying from Chang'an to Sichuan Province requires the approval of the Air Force and air traffic control departments. It takes a lot of time for us to apply for it ourselves. It is best for both of us to do disaster relief. Jointly apply in the name of!"

Classmate Yu hurriedly said, "Wait a minute, I will report to the leader right away... this, can you come here?"

The Sichuan provincial government and Dongsheng Heavy Industry came forward together, and the country urgently approved Dongsheng Heavy Industry's drones for cross-provincial disaster relief.

A transport plane was also dispatched to transport multiple drone operating platforms from Chang'an to Chengdu.

A few hours later, several drones moved from Shaanxi Province to Sichuan Province.

These drones not only shoot remote sensing images, but also relay communications, transport, and weather forecasts...

When the first drone passed through the thick clouds and sent back the scene of one of the lost counties, the scene was boiling.

After the drone flew back and forth for more than two hours, it finally managed to find a landing site for the helicopter not far from the county seat.

And before the final return, two more backup landing sites were found.

According to the images sent back by the weather reconnaissance drone in front, the weather showed signs of improvement. The helicopters of the Air Force and the Army Aviation Corps set off with personnel and supplies, and successfully landed at the two landing sites, sending personnel and supplies to the disaster area. supplies.

The various troops stationed in Sichuan have been put into disaster relief one after another.

In the evening, Yang Dongsheng's ambulance team also arrived in Rongcheng by plane.

Excavators and engineering vehicles from various nearby mines have been transported over one after another.

A few days later, rescue teams and journalists from all over the country and even around the world also arrived.

Compared with the previous life, there is less of a team that likes to mourn collectively, take pictures for a show, and have more reporters than rescuers.

In addition to donations of up to 11 billion, Dongsheng Heavy Industry's drones have also frequently appeared on TV.

Agricultural remote sensing drones can scan the disaster area every two hours, allowing the disaster relief headquarters to understand the changes in the disaster area.

Although Beidou also has a short message function, the relay communication drone provides a larger capacity communication capability for the disaster area.

Yang Dongsheng transferred all the flying drones in Chang'an one after another.

Multi-rotor drones support various rescue teams.

At the same time, speed up the production of small branch drones.

This small unmanned transport aircraft can land directly on muddy dirt roads.

Especially after unloading, takeoff can be completed within a distance of 100 meters.

Its convenience is no less than that of a helicopter.

The transportation efficiency is more than ten times higher than that of helicopters.

For the rescue team deep in the mountains, with inconvenient transportation, donated canned beef, beef jerky, canned fruit, dried fruit, medicine and water to Dongsheng Food.

Dongsheng Mining also donated a large number of simple board houses that can be quickly installed based on years of field operation experience.

The time of the earthquake was more than a month earlier than in the previous life, and the weather was much colder than in the previous life!
Especially in mountainous areas, which are the hardest-hit areas, the nighttime temperature is only a few degrees.

And it had been raining heavily, very humid.

Compared with tents, these board houses have better insulation and moisture-proof effects.

The effect as a temporary hospital is also incomparable to tents.

The walking excavator of Dongsheng Heavy Industry also showed its face.

A section of the collapsed mountain blocked the river and formed a barrier lake.

In the previous life, we used the Mi-26 and hung the excavator to dig this section of the river.

Now they have walking excavators.

The excavator climbed over the mountains and ridges by itself, and dug the barrier lake in the past.

These TV pictures were broadcast to all parts of the country through TV stations.

Yang Dongsheng was personally interviewed by the leader who came to the front line of the earthquake relief and directed the disaster relief.

The ability to grow stagnant for a long time has been greatly improved.

……

The Sichuan Basin is surrounded by mountains, especially in the west, where the plains transition to the Qinghai-Tibet Plateau, where the mountains are steep and the altitude rises sharply.

From the west side of the plain, within 3000 to 4000 kilometers to the west, there are high mountains of more than [-] meters and more than [-] meters everywhere.

Sichuan Province is already the rear of our country, and these mountainous areas are the rear of the rear.

In the past few decades, the country has spent huge sums of money to build the largest wind tunnel group in our country and a high-altitude test platform here.

When the car is driving on the mountain road, you can see traces of mountain collapse and broken trees everywhere on both sides of the road.

At some point, the road will be blocked.

Fortunately, they didn't go too far into the mountains, and they saw a tall factory building in a river valley.

There are three huge chimneys at the entrance of one of the factory buildings.

This is the first and only high-altitude test platform in our country at this time.

Although Yang Dongsheng has never been here before, their Yangtze River and Yellow River engines have been tested here.

This is a veritable meritorious test bench.

After getting out of the car, I greeted everyone.

According to the introduction, the core part of this high-altitude test bench is a compressor driven by 14 high-power electric motors, each with a power of 1.2 kilowatts.

These motors and compressors are located in two buildings, one half for compression and the other half for extraction.

Auxiliary equipment includes heaters, mixers, drying and cooling devices, etc.

According to the simulation requirements, the engine in the test chamber can be provided with an air flow with a maximum air supply volume of 350 kg per second and a maximum air supply pressure of 4.5 atmospheres.

The matching heater can heat the air with a flow rate of nearly 70 kilograms per second from normal temperature to 500 degrees Celsius.

The cooling device can reduce the air flow rate of nearly 50 kilograms per second from normal temperature to minus 70 degrees.

Everyone only looked around the factory building outside, and did not enter the factory building to visit.

After the earthquake, the factory building cracked a crack visible to the naked eye, and it has become a dangerous building.

Various precision equipment in the factory building are still being inspected for damage.

Across the river from the factory building is the residential area, most of which are tube buildings made of red bricks.

Accommodation conditions for experts and leaders are slightly better.

However, most of them were destroyed by the earthquake and became dangerous buildings.

"Construction started in the 60s, and it was completed in the 90s. It took a full 30 years. It only took ten years, and this..." A grizzled old worker burst into tears, almost sitting on the ground and crying loudly.

Although Yang Dongsheng felt it was a pity, he had a different view.

Even if this test bench was not damaged by the earthquake, our country needs to rebuild a high-altitude test bench.

The environment alone can scare a lot of people away.

I heard that they have suffered a serious brain drain in the past two years.

And their equipment is also a bit outdated.

When running, the power is nearly 20 kilowatts.

Just in order to ensure the operation of these motors, a factory building was specially built for frequency conversion.

It is also equipped with a large substation.

The whole design is too complex.

The combination of fourteen large motors and compressors, if any of the motors and compressors in the middle fails, it may cause the test to be interrupted.

The next-generation "Haihe" aero-engine being developed by Dongsheng Heavy Industry has greatly improved its high-altitude and high-speed performance.

This high-altitude test bench may no longer be able to meet the needs of the test.

They now have bigger compressors and motors.

However, Yang Dongsheng felt that if the gas turbine was used as the power to drive the compressor, the design would be much simpler.

That's how natural gas pipelines work.

Storing natural gas is also much simpler than storing electricity.

The high-temperature exhaust gas produced by the gas turbine can also heat and cool the air.

Our country was too poor in gas turbine technology before, but it is different now.