After a short time, Yang Luo wrote the suicide note, and then handed it over to Chief Master Wang, and turned around to go next door to change into flying equipment.

"Wait a minute." Chief Master Wang stopped Yang Luo.

Yang Luo turned around suspiciously and said, "Chief Master, is there anything else?" ”

Chief Master Wang didn't look at the content of the suicide note written by Yang Luo, folded it and handed it to the assistant on the side, and then said, "Since it's a test flight, don't wear your set of anti-load clothes, I'll prepare a new set for you." ”

As he spoke, he took out a set of brand-new anti-load suits that were still in the vacuum plastic packaging, handed them to Yang Luo, and said, "This is a special anti-load suit for test pilots, your anti-load suit can increase the overload of up to 2g, and this one is much better than yours, at least it can increase the overload of 3g, and even 4g is possible, and the specific amount depends on the person." ”

"Thank you, Chief." Yang Luo was overjoyed, took over the anti-load suit, rubbed his hands against the plastic packaging, and couldn't put it down, with this anti-load suit, there would be no black vision when flying 9g's large overload maneuver, and it was even possible to challenge 10g.

"No thanks, I'm also here for you to better complete the test flight." Chief Master Wang said with a smile, "You have to take good care of it, this is a new high-end technology, the output is not high, worth 400,000 pieces, even the J-20 pilots use a lower grade of Kh-9 anti-load clothing, and they are not qualified to use it." ”

"Don't worry, the chief teacher, I will take good care of it." Yang Luo said solemnly.

"After the mission is over, I will call the shots, and this anti-load suit will be given to you." Chief Master Wang smiled, "Let's go change your clothes." ”

"Yes."

Yang Luo was even happier, his steps were a little fluttering, and he entered the dressing room next door to change clothes.

I never thought that when I came to perform a test flight mission, I could also get a special anti-load suit for test pilots, which was the only one in the flight unit.

First put on a warm flight leather jacket and survival vest, then open the plastic packaging, put on a test pilot special anti-load suit worth 400,000 yuan, and it is best to put the Beidou locator, pistol, paratrooper knife, military mechanical watch and other equipment on your body, put the changed training uniforms and mobile phones and other items into the locker and lock them, and return to the flight briefing room with the TK-10C helmet.

"Not bad." Chief Engineer Wang looked at Yang Luo and said, "Today, the subject of our test flight is very dangerous, and it can be said that it is one of the most dangerous subjects, low-altitude and large table speed. ”

High gauge speed at low altitude?

Hearing that it was this subject, Yang Luo's face became very serious, he didn't expect to fly such a dangerous subject as soon as he came, this subject is indeed one of the high-risk subjects.

In high-altitude flight, even if there is a failure, even if the engine is turned off, at least there is an altitude to deal with, you can try to restart the engine, and you can choose to parachute at the worst, and the danger is greatly reduced.

But it is not possible to fly at low altitudes, especially at low altitudes and high speeds.

First of all, let's talk about the definition of low-altitude and large-speed subject test flight, low-altitude high-speed is the closest value that can be achieved by flying out of the aircraft speed under the premise that the aircraft does not disintegrate.

The biggest danger of a low-altitude and large-speed test flight is not a fighter malfunction, not an obstacle, but the biggest danger is the disintegration of the aircraft. Once the plane disintegrates, at low altitude, even if the ejection is successful, the probability of survival is not large, not to mention whether there will be a chance of ejection.

In the process of test flights, there are many precedents for the disintegration of aircraft at this low altitude and high table speed. And the basic result is that the machine is destroyed and people die, and there is no way to come out.

Some people may ask, since you have to risk so much to fly, what is the use of this subject?

In the current world pattern, basically the high altitude is guarded by all kinds of ground radars, and fighter jets can only fly at ultra-low altitudes if they want to avoid the defense of radars and break through the blockade line.

And war is a race against time, fighters cannot rush to the battlefield slowly, they must be at the fastest speed, and at this time the low altitude and large table speed play a role.

Only by flying the low-altitude and high-speed limit of the fighter in advance can non-combat losses be reduced in wartime.

"The test flight site of the low-altitude and high-speed subject is 200 kilometers away in the northwest, where there is a desert, which is deserted and uninhabited, which will not affect the people on the ground, and is also equipped with monitoring equipment." Chief Master Wang looked at Yang Luo and said, "The desert there is basically flat, and the highest place is only twenty meters, and now we need to determine the altitude of the test flight." ”

By definition, a flight at an altitude of 100 to 1,000 above the ground or water surface is considered low-altitude. What is the height of the low-altitude and high-speed meter?

"Chief Engineer, what was the flight altitude of the J-10 at low altitude and high speed during the test flight?" Yang Luo asked.

"The test pilot at that time was Li Zhonghua, who flew at an altitude of 1,000 meters, first dive and accelerated from a high altitude, then changed to horizontal flight at an altitude of 1,000 meters, continued to accelerate, and maintained for 20 seconds, and finally reached a speed of 1,453 kilometers per hour." Chief Master Wang seemed to return to the scene when he was testing the flight at the beginning, and said leisurely.

1,000 km, 1,453 km/h.

Yang Luo pondered in his heart for a while, looked up at Chief Master Wang, and asked, "I don't dive and accelerate from a high altitude, I directly accelerate in level flight, fly a hundred meters, how about it?" ”

A hundred meters, are you kidding, who would dare to fly so low?

Hearing Yang Luo's words, Chief Master Wang's face was a little ugly, and he said, "Yang Luo, this is not a joke, one hundred meters is too low." ”

Chief Master Wang's assistant looked at Yang Luo in front of him in surprise, he was young and his tone was so big, senior pilots only dared to fly at an altitude of thousands of meters, you had to lose a zero directly, and you wanted to speak, but he was not qualified to speak here.

"The limit of the kilometer air has come out, and in the case that the body material has not been innovated, I will not have better results if I fly again, I believe it will not have better results, it is better to test flying at a lower altitude to see what kind of data can be obtained." Yang Luo said.

"No, it's too low, it's too dangerous." Chief Master Wang shook his head and said.

The lower the altitude, the denser the air, the most powerful engine thrust, and the aircraft can fly at maximum speed. However, the faster the speed of the aircraft, the greater the resistance it will experience, and the high-speed air flow will "sharpen" the aircraft like an increasingly sharp steel knife. If the aircraft is not strong enough, the shell will be pried up and the wings will be flattened.

Figuratively speaking, just like we ride a bicycle against the wind, the faster we ride, the greater the drag, which requires the aircraft to fly at a low altitude and high speed, and the test is the ultimate strength of the aircraft structure, and the maximum flight speed when flying out of the ultimate strength.

"Chief Master, the lower the altitude, the more representative it is, Li Zhonghua and I just pinched one end and the other at a low altitude, and the maximum speed at the height between 100 meters and 1,000 meters can be completely calculated." Yang Luo continued to insist on flying at an altitude of 100 meters.

Chief Master Wang looked at Yang Luo and asked very seriously, "Comrade Yang Luo, you have to think about it, at a low altitude of 100 meters, once something goes wrong, it will be doomed." ”

Yang Luo said firmly, "Chief Master, I firmly believe that I can complete it." If you want to know more about me than the chief master, I dare to fly 700 kilometers per hour at an ultra-low altitude of 50 meters in the valley. ”

Although the dangers faced by the valley ultra-low-altitude penetration and the 100-meter low-altitude high-speed flight are different, one danger comes from obstacles, and the other danger is the disintegration of the aircraft in the air, but in terms of danger, there is not much difference, and they are both very dangerous flights.

"Okay, since you insist, fly according to the altitude you said." Chief Master Wang nodded and said, "Once you find a problem, report it immediately and slow down." ”

"Yes." Yang Luo said solemnly and loudly, "Guarantee to complete the task." ”

"Let's go, go to the hangar."

With a wave of his hand, Chief Master Wang took the lead out of the flight briefing room, got into a commuter car waiting outside the door, and the assistant on the side hurriedly picked up the briefcase, followed with Yang Luo, got out of the flight briefing room, and sat in the commuter car.

After everyone got into the car, the driver started the engine, refueled and put the gear, and the commuter car started smoothly and headed straight for the hangar.

ps The next chapter will be a little later, probably after midnight.

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