General Lin shouted: "Give me this task, I must knock it down!" ”

General Lin is already full of anger, any enemy plane to invade his airspace, it must be let have no return!

"Lao Lin, we have to sum it up, after all, although the MiG-25 has been declassified, there has been no successful interception in the past few years."

When they heard this, all the people became solemn.

That's right, the MiG-25 dominates the sky, and so far, it has really not missed.

The MiG-25 is the king of this era, a god-like existence.

After the end of World War II, all aircraft designers were rushing towards the speed of sound, and when they reached the speed of sound, they would encounter something called a sound barrier, and everyone was guessing that sound was like a wall, and it would smash the aircraft that tried to rush through it.

However, soon, this sound barrier was overcome, and many fighters were able to fly at supersonic speeds, and the sound barrier was no longer terrible in front of everyone.

The speed of the fighters is constantly increasing, and many planes can fly up to Mach 2, and when they accelerate again, they will encounter something called a thermal barrier.

When the fighter is in flight, the fuselage and the air rub against it, and it will heat up, and the size of this heat is mainly determined by the speed of the aircraft.

For example, when the MiG-19 flies in Mach 1.3 in the air at zero degrees Celsius, the nose of the aircraft rubs against the air flow to generate heat, and the temperature reaches 72 degrees Celsius. And on the MiG-2.05, flying at Mach 2.05, this temperature rises to 107 degrees Celsius.

It has been calculated that by Mach 3, this temperature will reach 300 degrees.

The main material of the fighter is aluminum alloy, which can only withstand 140°C, and if the aircraft flies to Mach 3, then the fighter is burned by friction.

The Eagle Country took the ordinary road and immediately thought of titanium alloy, while the Bear Country took the edge of the sword and directly used the simplest stainless steel.

At that time, high-altitude and high-speed is the ideal pursued by all aircraft designers, even if it is domestic, there have been countless models, take J-9 as an example, in the long development, a lot of indicators have been proposed, such as double 28, double 26 and so on, it can be seen how much we are looking forward to excellent high-altitude and high-speed performance.

In addition to being a sharp weapon for quick interception, it is also a sharp weapon for reconnaissance, and it is difficult to be intercepted.

To put it simply, the high-altitude anti-aircraft missile that is the main force in China is still the Hongqi-2, which is an imitation of the Sam-2 missile.

After many years of operation, the performance of this missile has long been outdated, although the maximum launch height is 27,000 kilometers, but this maximum launch height is a useless number, it is the number of the missile hitting the top of the head vertically, what plane can fly just above the head?

As long as the firing is oblique, the altitude will be greatly reduced, and the maximum range and maximum firing height are two numbers that restrict each other.

It is impossible for its height to exceed twenty-four thousand under normal combat.

Therefore, using it to intercept such a high-altitude and high-speed reconnaissance aircraft as the MiG-25 has exceeded its design capabilities, and it is impossible to successfully intercept it.

If the Hongqi-2 is not good, then you can only rely on fighters, and if you rely on fighters, it will be even more unreliable, what fighters can fly to 30,000 meters?

Now in China, the only mature one is the J-7, even if it is the most fragrant dream, no one will want to use it to fight the MiG-25, right?

So, the problem is huge.

"Lao Tu, tell everyone about it." Sure enough, General Lin looked at Tu Lao.

In fact, Mr. Gu and others, who were in charge of the J-8 project, had also received the news and were heading to the Air Force Headquarters, but because Tu Lao was already in the capital, he was the first to arrive.

"Our J-7 fighter, if you use the power jump method, can climb to 22,23, and no matter how high it is, you can't be sure." Tu Lao said.

What if the fighter does not have enough ceilings? That, of course, is a power jump!

The simple idea of power jump is to exchange speed for height.

A few years ago, the Americans' high-altitude unmanned reconnaissance planes have been intruding into China's territorial airspace all along, relying on their altitude superiority to do whatever they want.

At that time, the altitude of their reconnaissance aircraft was 17,000-20,000 meters, while the maximum flight altitude of the domestically equipped Jian-6 fighters was 16,800 meters.

Therefore, the pilots are bold and innovative, relying on their superb flying skills, at an altitude of more than 16,000 meters, first glide at a certain angle, and then pull up, although the speed is getting slower and slower, the height is getting higher and higher, just like a bicycle riding fast, without pedaling can also jump up the hill.

Relying on inertia, the J-6 fighter climbed up and shot down the target, relying on this way, in August 1964, our army used the J-6 for the first time to shoot down the United States high-altitude unmanned reconnaissance aircraft.

After a few fights, they didn't dare to come.

Now, if you plan to intercept it with a fighter, you can only use the same technology, but unfortunately, even if the J-7 jumps in power, it will not be enough.

"It seems that the J-7 will not work, but what about the J-8?" General Lin asked.

This sentence is asked to Qin Feng, after all, who is currently near the capital and is familiar with the J-8, then only Qin Feng is there.

Hearing General Lin's question, Qin Feng thought for a moment and said: "Our J-8, the flight envelope is still expanding, according to the design, there is no problem to reach double 22." ”

The goal of the J-8 design is high-altitude and high-speed, so its performance must be better than that of the J-7, although the expansion of the entire flight envelope has not yet been completed, but according to this trend, the altitude is 22,000, and the speed is Mach 2.2, there is no problem.

Of course, for the sake of safety, after entering the army, the actual ceiling of the J-8 was limited to 20,500 meters, in fact, it can fly higher, and even its maximum speed has once flown to Mach 2.35.

"So, if we use the J-8 to make a power jump, it's no problem to jump to 25,000." Qin Feng said: "It's just that we also know that the MiG-25 can fly to 30,000 meters, and no matter how high it is, we can't do it." ”

The J-8 has a high ceiling and a high speed, so its power jump must be higher, but this does not mean that it can kill the MiG-25, and people can easily fly 30,000 meters!

Everyone frowned and pondered, since the establishment of the PLA Air Force, it has been tenacious in style, and there are no conditions, so find a way to create conditions, in short, we must achieve our goal!

For more than ten minutes, the conference room fell silent, and at this moment, Qin Feng suddenly thought of something: "The maximum altitude of this aircraft is 30,000 meters, but it can't be 30,000 meters all the way, right?" We just need to intercept it in the airspace below the altitude of 25,000 meters, right? ”

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