The day before the take-off and landing test was implemented, the Air Force and the Military Region Air Force sent a research team to the Central South Station and brought a rating plan.

Simply put, Li Zhan was ordered to do the rating flight of the station at the same time. It is said that the Air Force is preparing to establish a base level system with a brand new assessment standard. The Air Force Station is the same as the civil aviation airport, such as the Beiku War Training Base, which is in

Before the base was changed, it was a regiment-level large yard station, which could take off large military aircraft and was backward compatible. This hierarchy system is similar to that of civil aviation airports and is evaluated based on runways and other foundations.

The new rating system includes new factors such as guarantee ability, difficulty of use, geographical location, etc. It comprehensively considers the level of a station and provides a sufficient basis for future adjustments.

As soon as the new rating system entered the actual testing stage, the Second Division encountered the take-off and landing test of the Central South Station. It simply combined and did not work. The Second Division put the test rating pilot project in the Second Division, and Li Zhan carried out the test flight.

Therefore, the established flight day had to be pushed back, and Li Zhan needed to learn and understand the detailed requirements and details of the new rating system. This time, not only did he need to find a suitable take-off and landing route, but he also had to repeatedly rub and explore more details, such as clearer.

up-down compatibility range.

In the new rating system, some stations specially deployed with fighter jets may be adjusted to higher levels due to their geographical locations, while some large stations that are not as outstanding in military geographical locations may be adjusted to lower levels due to this.

The new rating system is related to the vital interests of officers and soldiers. After the Beiku Station becomes the Beiku combat training base, it is not only the result of baseization, but also the result of the increase in the station level. Most of the officers and soldiers at the station benefited from this.

Some cadres who are difficult to advance and hopeless have even upgraded in such changes.

What interested Li Zhan the most was that the level of the base station is related to various subsidy standards. If the rating is labeled as a high-risk label, the relevant subsidies will be increased accordingly.

Everything that involves the vital interests of officers and soldiers must be rigorous and cautious. After repeated discussions, research and pilot projects, a large amount of data must be collected and analyzed and studied, and then implemented with caution.

The weather is not good, and the southern Hunan region ushers in the first snow.

Li Zhan got up early in the morning and stood in the corridor. He looked across the runway and looked at the mountains covered with thick fog in the distance. He couldn't help but sigh. He knew that this was not a good weather for flying without looking at the weather report.

While having breakfast, Zhang Wei came over with a report in his hand. After sitting down, he seemed disappointed and breathed a sigh of relief, "I can't fly, the Northern Guizhou Meteorological Observatory has not approved it."

Li Zhan was not surprised and said, "The visibility is less than 200 meters, and the plain airport can be tried, so let's not be the ones in the mountains."

"Oh, you're afraid too?" Zhang Wei said.

After drinking the last little porridge, Li Zhan looked at Zhang Wei and said, "Why are you still relieved? Are you scared?"

"Me? No, no, why am I afraid?" Zhang Wei forced himself to smile.

Li Zhan said leisurely, "Let's talk to the Chief of Staff later, and then to the research team. As for testing flights, the current weather is actually quite appropriate when the flight limit is to be reached."

Zhang Wei almost stood up and said indignantly, "What's wrong with you? Is it just a visibility of 500 meters? Look, look at the wind, you want to take off with the wind, don't say whether the runway is enough or not, it's enough to enter.

What should I do if I am in the mountains? There are also low air flows in the mountainous areas under bad weather. The southern mountainous areas are completely different from those in the western Beiku. There are traces of your Beiku that can follow the low air flows in the southern mountainous areas. There is no rule. You all have these.

I know."

He stared at Zhang Wei with a serious expression for a while. Li Zhan got up and took the basin to the recycling station, then strode towards the commuter car waiting on the side.

Zhang Wei was stunned. After a while, he hurriedly chased him out and jumped into the car, explaining, "Old Li, you misunderstood. I am not afraid of death, why am I afraid of death? I mean, take off in an impossible weather.

But being irresponsible to oneself is also being irresponsible to the Air Force’s property. If you lose your life, you will be a big deal if you lose your life."

Li Zhan couldn't hold back anymore, laughed out loud and said, "Look, I'm scared of you. Whoever is not afraid of death is also afraid of death. I definitely won't do it so hard that you keep your heart in your stomach."

Zhang Wei secretly breathed a sigh of relief. He was really afraid that Li Zhan would ask for a normal flight. Tang Guozheng might really agree, because he knew very well that Tang Guozheng was also an adventurous and agreed with many of Li Zhan's views, especially Li Zhan's "bad"

The theory of the environment hitting the troops.

What is the concept of visibility of two hundred meters?

The driver of the commuter car tightened every nerve and stared at the road ahead. His muscles were ready. He silently recited ten thousand times in his mind, "Press the brake as soon as possible if there is a situation." The right side of the accelerator pedal

I didn't dare to really exert force on my feet.

Ice and snow, heavy fog.

As Zhang Wei said, the situation in the south is different from that in the north and west. The snow in the south also has a southern character, with a restrained and gentle style on the surface. Compared with the blizzards that are bombarded in the west and the heavy snow in the north, the south

Snows have no intention of grabbing the headlines. They will always silently fulfill their mission inadvertently, but what they leave behind is a disaster that is far more serious than heavy snow in the north.

When he arrived at the tower, Li Zhanzai carefully checked the latest weather report and finally realized that he could not fly this morning. Moreover, the forecast of the Northern Guangxi Meteorological Observatory clearly stated that the next forty-eight hours will not be allowed to fly.

This made Li Zhan feel like he was empty with one punch. He had made very sufficient preparations to erect the flag of the Beiku Eagle Falcon in the second division.

Zhang Wei said regretfully, "There is no way, it's just right to prepare more. I have to make more preparations for you as a navigator. It's just right, and there are two days left."

Suddenly there was a clamor.

Everyone looked up and saw the scene of rain hitting the windshield. Rain and snow, this strange weather phenomenon is probably unique to the southern region. High-altitude cumulonimbus clouds quickly solidified after precipitation below zero temperatures

It turns into snow, forming a snow phenomenon. Sleet is a phenomenon that forms the future and the frozen rain and the frozen snow mixed together.

Usually sleet occurs at the joints where the rain and snow are transformed, from rain to snow, or from snow to rain.

The report mentioned that snow began to fall at around 3 a.m. As the temperature rises, snowfall will change to rainfall.

So it can be concluded that snowfall will quickly turn into rainfall.

Compared to snowfall, Li Zhan hates rainfall even more because he thinks it will increase the difficulty of taking off and landing and flying. And it is very likely to have heavy fog weather after the rain. Such a variety of weather changes in a day is the climate in the mountains in the south.

and is quite difficult to predict.

Seeing that the rain was getting heavier and heavier, the flying snowflakes were replaced in an instant. Zhang Wei shrugged and said, "I can't fly today. There may be heavy fog after the rain stops.

The lower the visibility.

Li Zhan put down the weather report in disappointment and said, "The weather is not good, let's go and discuss the flight plan."

Zhang Wei shook his head helplessly, "You are such a flying madman. The flight plan has been discussed more than a hundred times over and over again."

The two of them were talking and about to leave the tower.

Suddenly the commander received a call, and Li Zhan heard a few words, and the random tower suddenly became nervous and busy.

"A civil aviation cargo plane must be prepared for the dangerous situation in the red. Hurry up, clean the runway and prepare for rescue!" The commander quickly issued an order.

Now Li Zhan stopped leaving and turned back to find out the situation.

A postal 8 cargo aircraft performs a cargo mission from Zhongyuan to Zhongnan Zhangjie Tourism Airport. The flight code is 8y1771. It is a fixed cargo flight from the above two places. It has one round trip every day and transports air mail. The flight is

A medium-sized transport aircraft of the Y8f400 that joined the Postal Fleet ten years ago, with the civil aviation number b25277, was a relatively advanced medium-sized transport aircraft in China that used turboprop engines at that time. Now it seems old and backward.

Time is turned back twenty minutes ago.

The crew found that the power of the No. 1 engine was decreasing, and the problem was not solved after emergency response. The Y-8 was equipped with four turboprop 6 engines and conducted a test flight that year, proving that it was relied on three engines after losing the thrust of one engine.

It can still take off and land normally.

Therefore, the crew was not too worried.

The Y-8f400 has improved the cockpit, so the crew has been reduced to three, namely the captain, the co-pilot, and the flight engineer, which is more in line with commercial purposes. After all, the company needs to control costs. The crew composition of the 8y1771 cargo flight deserves attention.

The captain is the first generation of pilot trained by the civil aviation system on its own training system. He has more than 5,000 hours of flight time, and the flight time of the Y-8 model has reached more than 2,000 hours, while the co-pilot is only 27 years old.

The flight hours of Y8 are only over one hundred hours.

However, this combination does not seem abrupt. It is not difficult for medium and short-distance freight flights, and relatively speaking, the requirements for the crew are not as high as those for passenger flights. Some of them are like the level requirements of motor vehicle drivers, such as driving a large passenger bus requires the highest level.

A1 driver's license of grade, and driving a large truck only requires b2.

When the power attenuation of engine No. 1 showed decisive power, the captain decisively took over control, and randomly stopped engine No. 1 after he took over control of the aircraft five seconds.

At this time, the flight was passing through the storm area, with high altitude lightning, thunder and low altitude rain and snow flying. 8y1771 flew in the air, with a flight altitude of 6,200 meters. This is the route height assigned by the air traffic control to the short-distance propeller aircraft, which is exactly the better weather.

in the gap space.

Similar weather is often encountered by crew members of Flight 8y1771, especially in summer, winter and seasonal changes. The captain flies this route every year and is prepared for changing weather in the mountains and has experience in dealing with bad weather.

Very rich, too.

But the captain never encountered the engine going out, although it was only one of four engines.

If that's all, the problem will not be very big. It's only a twenty-minute flight from the tourist airport, and it's more than 300 kilometers away. With the remaining three engines, you can completely make a perfect three-engine landing on the established runway of the tourist airport.

, may receive the company's reward.

However, engine 1 is only the beginning of a series of problems.

One minute later, the captain found that the thrust of the No. 2 engine also decreased, and then completely lost its thrust in just five seconds and then turned off.

In other words, there are only two engines left for the 8y1771.

The flight carries 17 tons of cargo, including precision electronic devices, air mail, luxury goods, electronic equipment, etc., which are very important and highly value-added commodities, worth more than 2 million yuan. For the captain, he doesn't care about the plane.

Which bastard's luxury goods are loaded on it? He only focuses on how heavy the goods are.

The maximum commercial load of the aircraft is 15 tons, which means that the 8y1771 carries an extra 2 tons of cargo, but this does not violate the regulations, because this route allows the 8f400 to be loaded at most 20 tons of cargo. The problem is that the premise is that four rounds are normal

With three engines, you can still fly to the destination and land safely.

But after losing the thrust of both engines, everything became impossible.

On the outside of the left wing is the No. 1 engine, on the inside is the No. 3 engine, on the inside of the right wing is the No. 2 engine, and on the outside is the No. 4 engine.

The captain was glad that he lost the thrust of the No. 1 and No. 2 engines, so that one engine still works normally on both sides of the left and right wings, ensuring the balance of the thrust. If he lost the two engines on the same side, things might be very good.

In trouble.

While increasing the thrust of engines 3 and 4, the captain pulled the aircraft that had dropped some altitude due to the reduction of thrust and re-pulled the air traffic control route assigned by the air traffic control. After a brief discussion, they decided to restart No. 1 and 2.

engine.

It takes about sixty seconds to start the engine using the apu auxiliary power unit.

The reduction in thrust caused the aircraft to be at lower altitude. Two engines that were still working normally were already operating at full load, but it was obviously difficult to support aircraft with infinite load approaching the maximum load to fly at the original altitude.
To be continued...