In this era, Western fighters have begun to adopt an integral windshield, and the front is a perfect streamlined arc structure, which is almost integrated with the fighter in order to achieve the purpose of minimum flight resistance, and at the same time, due to the lack of a partition frame, it gives the pilot a larger field of vision.

However, this requires a high processing technology, at the same time, after the front also becomes an arc, it will produce distortion, the most basic, is the principle of an arc-shaped magnifying glass, look at the past, the distance or something, can not be determined, at this time, even if it is the use of a flat display, it also needs to be calibrated, it is calculated by the computer, the corrected image, such as the hotline of the cannon.

Therefore, even the original F-14 fighter, because of the early age of its birth, can not use the overall windshield, it is still a three-piece type, of course, this has another intention, people's optical glass processing level has been reached, so the front of the glass, directly as a flat display to use.

It is not good for oneself, domestic aviation technology is backward in all aspects, which naturally includes the simplest windshield.

The MiG-21 fighter is a small aircraft, relying on a low-thrust engine, but it has achieved a flight of Mach 2, of course, it has a lot to do with the small windward area, and its front is also a windshield, which is not only surrounded by a metal frame, but also has a thick layer of bulletproof glass behind it.

For the aircraft, a big threat is the bird, the speed of the bird is not fast, but the speed of the fighter is very large, especially when taking off and landing, it is easy to cause accidents because of the collision with the bird, and this windshield plus bulletproof glass, not only to prevent the debris in the battle from piercing the windshield, but also to avoid the glass being broken when hitting the bird, causing the sacrifice of the pilot.

It's just that this superposition has led to poor light transmission of the windshield, and in the previous test flight, there was no big problem with aiming with your own optical sight, but now with the flat display, it will be blurred.

It can be said that the shadow on the head-up display is not blurred, but when you look out through the windshield, a series of optical effects are generated, resulting in a hazy image.

Inside the hangar, there is a wall in front, there will be no reflections, so that you can see clearly, and after takeoff, it will not work.

How to fix it?

The best is of course to strive to improve the quality of domestic windshields, but now their own demand is so urgent, it is not possible to rely on the domestic, then it can only be imported!

The British "triple" company has a good optical quality windshield anti-bird glass, with this kind of glass is no problem, at the same time, this also means that their own future production of fighters, also have to use this kind of glass, when the domestic production of similar products, this has added a supporting introduction.

However, this quality must be guaranteed, and it must not be ambiguous!

In fact, the glass of the cockpit canopy has always been advanced in the West, when there were just fighters, pilots always liked to open the cockpit canopy, one of the reasons is that the glass of the cockpit canopy has been worn out after a period of time, and it is not easy to observe the outside world.

The United States was technologically advanced and quickly solved it, while the Soviet Union, until the end of World War II, did not effectively solve this problem.

Because it was originally a cooperation with the Marconi company, the import of this glass was very fast, a few days later, this new J-7II.A aircraft was completed, when the Western windshield was installed, you can see that the front is really clear, as if there is no glass!

That vague question, finally gone.

In the narrative of the Marconi company, their company's head-up display is even installed on the F-16 fighter, so their head-up display will not have such a mistake, and now that the glass has been replaced, it is finally good.

At the same time, the second J-7II.A aircraft also came off the production line, and the two aircraft were tested together, which could speed up the progress of the flight.

The transition flight began.

"I'll see you as long as I have time." Qin Feng went to the station first to see off his wife, although he really wanted Tingting to go to Dalian with him, but unfortunately, the time for school was still up, and Gu Tingting needed to go back.

"You can fly with peace of mind, I should intern soon." Gu Tingting said to Qin Feng, her intention was obvious, the current separation was temporary, and soon, Gu Tingting would be with Qin Feng.

On the platform, watching Gu Tingting get on the train, the moment the train drove away, Qin Feng really felt that his nose was a little sour, and unconsciously, he was used to the days of two people.

"Little Bie is better than a newlywed. Soon you'll see each other again. Just then, a voice came to my ears.

Brother Sun and Qin Feng came together, the two of them gave them away, and they had to buy some things, and now, after hearing Brother Sun's words, Qin Feng said, "Brother Sun, where is your wife?" Do you miss them? Qin Feng asked Brother Sun.

At this time, Qin Feng realized that for such a long time, he had hardly heard him talk about his family.

"Old husband and wife, it's not interesting. My sons are almost adults. Brother Sun said casually: "Go, get in the car." ”

Qin Feng was a little strange, could it be that after a long time, the husband and wife began to dislike each other? That's terrible, isn't it?

I don't want to be like that.

Returning to Factory 132, Qin Feng and Brother Sun made some preparations, and in the afternoon of the same day, the two piloted a fighter plane from Chengdu to Dalian.

The vast land kept appearing under the wings, and Qin Feng even had an impulse to look down, every time he crossed the railway line, he had to see if there was a train passing by, and if there was Gu Tingting on the train.

"006, pay attention, calibrate our course at the landmark ahead." Brother Sun's voice came from the earphones.

Brother Sun is worthy of being a veteran who has flown for more than 1,000 hours, and this transfer flight has to write down the landmarks along the way, all kinds of navigation data, Brother Sun almost never forgets it, and remembers it clearly.

Without an advanced inertial navigation system, it would have to rely on the human brain.

Qin Feng looked at the towering chimney below, which was a large chemical plant, an obvious landmark on the route.

Calibrate your course and move on!

Suddenly, there was a sharp howl from the earphones, and Qin Feng was almost about to exclaim, damn it, his ears were deafened!

This radio station, but it is equipped with the latest, how can there be a howling sound on the radio provided by Marconi Company? It's not as good as an old-fashioned radio station.

Qin Feng raised his head, looked outside, saw Brother Sun on the side, and also pointed to his own ears, this howling is really hateful.

What a problem!