Siheyuan starts from a better life

Chapter 490, talk

Early the next morning, Jiang Yan got up early and glanced at Jiang Sirui, who was still sleeping. Jiang Yan got up carefully, washed and dressed, and walked to the canteen with his lunch box.

Breakfast is rice porridge with red dates and kidney beans in it. It smells delicious and is paired with pickles and cabbage, radish and vermicelli buns. The taste is so good.

There were meat buns for sale this morning. Jiang Yan bought two meat buns and vegetarian buns respectively and returned to his house without thinking.

At this time, Jiang Sirui had already gotten up, and the two of them walked to the laboratory together after breakfast.

Because other tests needed to be carried out yesterday, Mr. Xu, the chief engineer in charge of this fighter jet, did not pick up Jiang Yan. He came to his office early this morning and told his secretary Xiao Hu to wait until Jiang Yan was arranged. , inform yourself to go see him by yourself.

As soon as he arrived at the research building, he saw Liu Yang waiting there.

"Mr. Jiang, your office has been arranged for you. I will take you there right now."

After waving goodbye to Jiang Sirui, Jiang Yan took his secretary Xiao Gong to the office prepared for him.

The office is a suite, with more than 30 square meters outside and only a dozen square meters inside. The inner room is a bedroom and bathroom.

I heard from Liu Yang that this office was originally used by experts from the Bear Country.

"Dong dong dong." As soon as he settled down, Jiang Yan heard a knock on the door. Jiang Yan was a little confused when he heard the knock on the door. He knew only a limited number of people in the Shengjing Aircraft Factory. Who was looking for him? , but he still arranged for his secretary Xiao Gong to open the door to his office.

When he saw the person who came into his office, Jiang Yan was stunned, and then became excited.

"Hello, Mr. Xu. I said I would visit you after I finish packing. I didn't expect you to come. Sit down quickly. Sit down quickly."

Seeing Mr. Xu sit down, Jiang Yan quickly arranged for Xiao Gong to pour water, and then placed the water glass in front of Mr. Xu with his own hands.

"Mr. Jiang, you know me." Mr. Xu was a little confused by Jiang Yan's enthusiasm, so he asked Jiang Yan.

Hearing Mr. Xu's question, Jiang Yan didn't know how to talk about it for a while. He said he knew him!I do know myself.

Mr. Xu was a legendary figure in his own time. He was later honored as the master of aircraft design in my country. He was a versatile genius, a patriot and a struggler. Under extreme difficulties, he led an average of only The 22-year-old designer designed my country's first jet trainer aircraft and also participated in the design of Zhan-6 and Zhan-7 aircraft.

Now, the Zhan-6 aircraft he presided over has been equipped with more than 5000 troops, and he has set a record of shooting down and damaging 23 enemy aircraft, with zero damage to himself. He is known as "a famous aircraft with outstanding achievements in the world."

It is also known as the 'God of War' by our country. As our country's first supersonic fighter, it served for 51 years and was not retired until 2010! "Even after retiring, he has been modernized and improved to serve as a death squad guarding our country's skies.

Otherwise, as soon as Jiang Yan heard that the Zhan 6 aircraft was being developed, Jiang Yan readily agreed.

"I've heard of your name, Mr. Xu, and I've been friends with you for a long time." Jiang Yan replied with a haha.

"I don't know why Mr. Xu came to me." Hearing Jiang Yan's question, Mr. Xu smiled and said, "I'm quite curious about you, so I came here to take a look. To be honest, what you researched this time Alloy has been a big help to me.”

"Especially the A-1 and A-3 alloys gave us a huge surprise."

The state, together with the formulas submitted by Jiang Yan, compiled a total of more than a dozen alloy formulas. Due to the need for confidentiality, all alloys were named according to the heavenly stems and earthly branches.

Jiang Yan knew that these two alloys that Mr. Xu was talking about were high-temperature-resistant alloys, with the temperature zero point being around 1°C.

这个时期，战机6的飞机装备的是WP-6涡喷发动机，单台最大推力为25.5千牛（2600公斤），加力推力为31.87千牛（3250公斤）。

This engine is copied from the PД-19B engine of the Mao Xiongguo MG-9.

The Pen-6 was finalized in July 59. It is China's first supersonic aeroengine. It is an axial-flow single-rotor turbojet engine with an afterburner.It's powerful and has plenty of room for improvement.

"By the way, and your improvements to the wings of the Zhan-6 aircraft have benefited me a lot. I came here to ask for advice."

"How did you come up with the idea of ​​adding wing blades to the wings of airplanes?" Mr. Xu asked next.

As the chief designer of the Zhan-6 aircraft, he is very familiar with the advantages and disadvantages of this aircraft. Due to technical level and equipment development ideas, this aircraft is better than the previous model equipped by Mao Xiong Country. No more advanced technologies were adopted, and naturally the shortcomings were also inherited.

This aircraft has a serious wingtip stall problem due to the large wing sweep angle.Stalled into a spiral multiple times during combat.

All this was unsolvable in the early days. Chinese designers also thought of many ways, but basically did not solve the root cause. It was not until the 70s that we thoroughly understood this aircraft. In order to solve the spiral accident, we boldly adopted a pair of large wing blades. I came here to solve the problem of wingtip stall, and I didn’t expect that the effect was surprisingly good.

However, in terms of effect, automatic slats are much better than wing knives.This design has both the influence of traditional design ideas and the limitations of technical level.

For our country at that time, this design was easy to copy, but it was not conducive to the development of advanced aviation technology. However, all this should be completely changed with the arrival of Jiang Yanfen. Because of this wrong route, Jiang Yan could not lead them in the Walk once.

Jiang Yan had already prepared a draft for the question he asked. He was also afraid of being asked, so he made preparations in advance, and his answer was flawless and convincing.

After the two people asked and answered questions, two hours passed. Jiang Yan felt that these two hours were more tiring than working for a whole day. In order to answer his questions, Jiang Yan's mind kept running at high speed, but okay before he paused to inquire of his own.

Initially, Mr. Xu was a little disapproving of Jiang Yan. After questioning and discussing, he was very impressed with Jiang Yan. I originally thought that he was good at metal and machinery, but I didn't expect that he studied aircraft more deeply than himself, especially He is currently researching a replica of the Division 6 aircraft. Mr. Xu feels that he has not researched this aircraft thoroughly enough.

If Jiang Yan knew what Mr. Xu was thinking at this time, he would probably be grinning from ear to ear. Other aircraft can't guarantee it, but this one, so be polite and pinch it with your hands.

In later generations, there are quite a lot of magical modifications and research on this aircraft on the Internet. Any one you pick out is quite amazing. There is even a master who directly transformed this aircraft from the fuselage to the shape on the Internet. A thorough improvement has been made. After the improvement, the performance on paper is basically on par with the later Z-7 aircraft.

Jiang Yan often visited this kind of forum in his previous life, and he often looked at such design drawings. After his memory has been strengthened in this life, he can think of all the details, and he can really draw them by himself.

(End of this chapter)