You were asked to repeat your senior year of high school, and you took advantage of the opportunity

Chapter 711: Hehehe, I can finally fight the ugly J-20

One of the most prominent features of the fifth-generation stealth fighter is its stealth.

The 'invisibility' here does not mean invisibility in the physical sense.

After all, reality is not the world of immortals.

You can cast an invisibility spell to become invisible and not be seen by the naked eye.

The "stealth" here actually refers to the fact that when scientists develop aircraft (ships, etc.), they use technologies such as appearance design, fuselage materials, stealth treatment of special parts, etc. to prevent aircraft (ships, etc.) from being detected and discovered by enemy radar.

As early as 1842, scientists proposed the principle of hunting by imitating bats' emission of ultrasonic waves to obtain the specific location of prey and transmit radio waves to detect certain substances.

During World War I, in order to cope with air attacks from Germany, the British urgently needed a technology that could detect metal objects in the air so that they could help search for German aircraft in anti-air raid warfare.

However, this technology did not mature until during World War II.

This is radar (technology).

After World War II.

Detecting and discovering air (sea) targets by using radar has become mainstream.

The relationship between radar and aircraft (ship) is similar to that between a spear and a shield.

Into the 21st century.

Various types of aircraft (aircraft, missiles, etc.) have increasingly longer ranges and fly faster and faster.

The detection range of radar is also getting wider and longer.

And with the emergence of the first stealth aircraft in human history, the F-117A attack aircraft.

The battle between spear and shield.

It seemed to end with the victory of 'Spear'.

Next.

Human beings have not stopped the research and development of stealth aircraft.

The B-2 stealth strategic bomber, F-22 Raptor fighter, F-35 Lightning fighter, J-20 Warhawk fighter came into being, as well as various stealth drones, the semi-finished T-50 (T-50 was officially renamed Su-2017 in 57), F-31 Falcon, etc. were developed one after another.

It seemed that in this battle between spear and shield, the spear had won a glorious victory.

But in fact.

The spear is making progress, but the shield has never stopped.

From the initial Doppler type, to passive phased array, active phased array to the current meter-wave radar.

The shield is also improving.

Therefore, the fifth-generation stealth aircraft only has a small radar reflection surface, but it is not completely invisible and cannot be "seen" by radar.

As early as 1998 on the Kosovo battlefield, the Federal Republic of Yugoslavia used passive radar to detect a US stealth F-117 aircraft and guided the air defense missile to shoot it down.

This is the first stealth aircraft to be shot down in the history of Blue Star.

Passive radars can detect stealth aircraft.

Not to mention the all-round radar that integrates various radar functions - meter-wave radar.

However, meter-wave radar has become the mainstream radar in the air defense networks of various countries as early as the 50s.

However, due to its low operating frequency and low detection accuracy and resolution, it was once synonymous with simple and backward radar and was not taken seriously.

As meter-wave radars continue to be improved and upgraded, microwave radars have become "blind" against stealth aircraft.

So meter-wave radar has gained a second life.

However, meter-wave radar still has many shortcomings, and various new technologies are not yet mature.

In addition, the new meter-wave radar is expensive and large in size.

Therefore, only a few countries in the world have formed strategic deployment.

Todai is one of them.

In order to cope with the threat from across the ocean, the East China Air Force built a number of meter-wave radar stations on islands and reefs in the East China Sea, South China Sea, Yellow Sea and other waters a few years ago.

Even some of the navy's electronic reconnaissance ships have replaced traditional microwave radars with meter-wave radars.

In other words.

As long as the US F-35 Lightning breaks into the East China Sea.

There is a high probability that Todai will discover its traces.

no way.

From the founding of the People's Republic of China to the present day, people have been blocking the entrance of Dongda University almost every day.

I am a little more comfortable now.

I have to stock up some good stuff at home.

What if one day someone really comes to your door and you don’t have a suitable weapon in your hand?

"The donkey in Guizhou, the cave is turning, and two suspicious targets are found. After analysis, it is determined that they may be two F-35 Lightnings."

In the communication channel.

The East Command controller's voice rang out. "The two suspicious targets are now about 200 nautical miles (about 370 kilometers) away from you. The data link has been sent over."

"The Donkey from Qian received it." Jiang Chen replied immediately.

Data link received.

He first calculated silently in his mind.

Then he said, "Master, please find a way to expose your tracks. I will go around and squat to see what these two F-35s are trying to do."

Although Xiao Yun didn't understand what this kid was trying to do.

But he knew that this kid would not cheat him.

So there was no hesitation.

Immediately said, "Understood."

Done.

Xiao Yun immediately pushed the throttle valve hard and flew the J-20 Virtua towards the coordinates provided by the East Command with great momentum.

Jiang Chen lowered the nose of the plane.

Keep a certain distance from Xiao Yun.

However, the speed was not as fast as Xiao Yun, but remained at around 400 knots.

Because this way he can always keep the nose of the plane facing the enemy plane.

It probably flew for a few minutes.

Xiao Yun estimated that the distance between himself and the "enemy plane" was only about a hundred kilometers.

Only then did he slowly pull up the nose of the plane.

First climb to a higher altitude and expose the belly of the plane.

Then turn around and return.

The tail wing is exposed.

It’s not that Xiao Yun has a bad taste.

Instead, the front reflective surface of a stealth fighter is much smaller than the back reflective surface.

So he exposed the belly of the plane and turned around.

The purpose is actually very simple.

The purpose is to allow enemy aircraft to capture weak signal sources.

Attract enemy aircraft to take the bait.

really,

About a hundred kilometers away.

The two F-35A Lightning fighter jets were flying at a constant speed.

But when a weak signal appeared on the airborne radar screen and disappeared in an instant.

The two American pilots immediately felt like they had found a treasure.

"Eagle's Nest, a weak signal source was found in airspace 05. It should be the target we are looking for." The pilot of the lead plane, codenamed "Mole", grinned.

"Close reconnaissance, pay attention to safety." Eagle Nest immediately gave the order.

The mole's expression was quite relaxed.

Because in his eyes.

Isn't Tokyo just a poor country that can only produce and imitate inferior products?

Everything in this country is knockoff.

Who can produce fighter jets, the crystallization of modern industrial art?

Not to mention stealth fighters.

So the mole has always scoffed at the so-called stealth fighter of the University of Tokyo.

I think it's just a shell that was invented.

Especially the two pairs of duck wings.

It's so ugly.

So he strongly agreed with the military experts' view that "the best canard is on the enemy aircraft."