Chapter 529 I want to use it as a fighter jet
The origin of this stack of paper is the same as the previous stack, but it comes from a different chapter. But Mr. Xiao didn't know that Gao Zhendong took out a stack of paper on the left and a stack of paper on the right like magic, which immediately stunned him.
Mr. Gao, do you never do your own job and do these things every day? Why didn't your factory fire you?
Although I was shocked, I still had to collect the things, otherwise I would really become what my comrades called "goose eggs".
In this stack of information, there is a comparison of the aerodynamic performance of the fused fuselage and the rotary fuselage under various conditions, as well as some design parameters of the fused fuselage. At this time, it is still very useful. of.
Spin body is the name of ordinary body in this chapter.
Mr. Xiao took the information, hurriedly flipped through a few pages, and put it down. Although he was excited, now is not the time to read this, otherwise it would be a bit disrespectful to Comrade Gao Zhendong. Once you have the information, you can't run away. .
Gao Zhendong pointed to the information and said to Mr. Xiao: "Mr. Xiao, most of the advantages and disadvantages I mentioned just now are between these three ideas, and the advantages and disadvantages are compared with each other. As for the fusion of the wing body You have to weigh the quality of the plan based on this information. "
Comparison of plans mainly compares the differences between plans. As for the quality of the common goal of the plan, that is another matter. , not included in the plan comparison content.
Here, Gao Zhendong’s three considerations are three solutions, and the integration of the side wing and the wing body is the common goal.
Mr. Xiao naturally knew this. He nodded: "Well, tell me about the other two considerations."
"The second consideration is to take bigger steps." It's easy to pull off the eggs." I swallowed the words.
“The wind tunnel is blown first. After the wind tunnel is blown, the main load-bearing structure of the wing-body fused body section is redesigned according to the best configuration obtained, and then the flight test modifications are carried out to finally obtain the best structure and try to eliminate the The disadvantages of this solution are that it may be improved to a higher level. This method may involve moving the air intake and the main structure, which is more troublesome. The advantages and disadvantages are obvious, but they are not enough.”
< br> Mr. Xiao found it quite interesting. This second plan is not so much a plan as it is the continuation and official conclusion of the first idea.
“Well, this is considered a deepening of the previous one, so it seems that your three plans are gradual?”
Gao Zhendong smiled and nodded: "Yes, the third option is to replace the airfoil and use a truncated delta wing, reduce the thickness of the main wing, and add a transition connection between the main wing and the tail wing to further improve the lift performance and further enhance the aircraft's performance. The internal volume is good, and the high-speed performance of the truncated delta wing is also good, and there are many advantages. In this way, the rear fuselage is considered to be redesigned, but this is an extreme idea, and there may be a lot of new ones. Only with technology can this aircraft fly stably. "
This is already similar to the relationship between Gao Zhendong's previous life, Master 7, and his fortune. They are not the same type of aircraft, or even the same generation of aircraft.
This move was so big that it scared Mr. Xiao. After doing this, is it still -5 attack? When Mr. Gao became radical, he left no room for retreat.
But this is just Gao Zhendong’s idea. As for attacking -5, Mr. Xiao still has to make his own decision. He knows the situation best.
After thinking for a long time, Mr. Xiao made up his mind.
"Let's work on the first one. This one has the backing of the old design, and the risk is relatively small. The advantages and disadvantages can be seen, and it is easier to control. I will digest your two materials first when I get back, and make a few models to show off. . ”
This is quite good. In fact, Gao Zhendong is not willing to spend too much energy and money on Master 5. This is its positioning as a cheap multi-purpose fighter. It has enough functions and can be used, but cost is still the first priority.
As long as the first solution can be realized, the lift performance can be appropriately improved, and the mounting structure can be rationalized to make the aircraft more portable without increasing the cost too much, then it will be excellent whether for personal use or export. Yes, the original 5 Ye was the first-generation export star product.
Gao Zhendong nodded: "Well, Mr. Xiao's idea is very good. I personally prefer the first option."
Mr. Xiao smiled and said: "The main reason is that I think the second option This movement is too big, but it is not good enough to be worth paying such a high price. As for the third one, the risk is too great.”
After finishing speaking, he looked at the schematic diagram of wing-body fusion drawn by Gao Zhendong and sighed: "But this aircraft after wing-body fusion is really beautiful, what a pity..."
In order to fuse the wings, Gao Zhendong The benefits of body-body fusion are more intuitive, so the schematic diagram is drawn with reference to Wu Ye’s actual aircraft wing. The drawing is very serious and expressive, and it looks very beautiful at first glance.
Gao Zhendong thought that Mr. Xiao’s pity meant that he could not be the most beautiful, but Mr. Xiao’s next sentence did not mean that.
"It's a pity that this wing knife looks too awkward to me, and it ruins the aesthetic feeling."
I have to say that Xiao always has artistic talent. If it is on a rotary body, everyone will They are all too abrupt and straight. If the two tall and upright wing blades do not seem inconsistent at all, then after the wing body is fused, the smooth transition from the body to the wing is very beautiful. Halfway through, I suddenly see a wall. , anyone would feel panicked.
The wing-inserting knife of 6 Ye is not inconsistent, but the wing-inserting knife of 10 Ye is extremely ugly. The main reason is that a unified art style is destroyed all at once, let alone the wing knives, the few lines between the air inlet and the fuselage of 10 Ye A small stick has been ridiculed as a "villain" by netizens all their lives. It didn't stop until the B/C model became DSI. In fact, Gao Zhendong has no objection to Master 5's wing knife. This thing can be regarded as a simple, direct, effective and low-cost means of controlling wingtip stall.
Aside from being a bit ugly, having to pay a certain weight penalty, and affecting the horizontal maneuverability of the aircraft, there are not many other problems with it in this era.
Don’t talk about Wuye and Liuye. When Citigroup’s F/A-18 was improved, the original boundary layer blowout design was on the verge of failure due to the cargo load destroying the airflow. It was all just as simple. I roughly added two small wing blades to the wings.
But now that Mr. Xiao has mentioned this matter, it’s not like Gao Zhendong can’t tell him something.
"It's possible to get rid of this thing, but it will bring some workload. You need to use the wings."
Mr. Xiao did not expect that Gao Zhendong could even do this thing, mainly because it is already very partial. Well, even if you have an amateur interest in aerodynamics, you generally won't consider this thing.
It seems that Mr. Gao’s research on the aerodynamic shape of aircraft is very thorough and extensive, going into every detail. For a moment, he almost came up with the idea of picking up a third high-risk plan.
However, although that plan cannot be implemented, he is still very interested in how to remove the wing knife: "Mr. Gao, tell me, let me see if it can be used."
Gao Zhendong After thinking for a while: "There are many ways, but most of them involve relatively large changes to the wings, which are not suitable for you at this stage. There is only one you can try."
There are many ways, many plans, and the CEO Gao has a lot of things in his head.
This time Gao Zhendong does not have to go get the information. This method is relatively simple and intuitive. Just tell them and let them go to the wind tunnel and blow it.
"Sawtooth wing! The wing blade uses physical methods to erect a metal wall to prevent the boundary layer airflow from flowing to the wing tip. It actually works quite well, hahaha."
Gao Zhendong smiled and drew a simple diagram of a sawtooth wing on the paper.
“The sawtooth wing uses the sawtooth to stir up vortices and disrupt the flow of the boundary layer to the wing tip. It is equivalent to a wall of air. However, I think this thing is not necessarily as effective as the wing blade. And it’s not as simple as the wing knife. In short, this is a method, but it is not a necessary alternative. You can try it.”
The Wing Knife survived on our plane until Mr. Jian Tou 8 and Mr. Bao. The reason is not necessarily because we had no other options.
After all, I may not have thoroughly studied it in the first ten years or so, but in the next few decades I still thought there was no way to do it.
So Gao Zhendong does not mean to strongly recommend it, but just states this method for reference. Whether it can be used, or whether it can be used well, the comrades of the Porcelain Flying Factory have to go to the wind tunnel to test it themselves. .
To be able to design the G-5 so well-proportioned and beautiful in this era, I guess Mr. Xiao has certain attainments and pursuits in aesthetics, at least he is very sensitive. For Gao Zhendong’s painting, it is considered simple. Straightforward Sawtooth Wing, which he had great interest in.
He copied down the schematic diagram drawn by Gao Zhendong very seriously, and praised repeatedly: "Well, this method is not bad. I will definitely try it when I go back."
Just try to integrate the wing and wing body into the same model. Mr. Xiao made a decision in his mind.
Looking at him copying the drawings, Gao Zhendong smiled and said: "Mr. Xiao, this is probably the case with wing body fusion. There is another usage problem you mentioned. What is the problem?"
Mr. Xiao finished copying the picture in a few strokes and looked up from his notebook: "Mr. Gao, judging from the fact that you attacked us with -5, I'm afraid you don't just want to use -5 as an attack machine, right?"< br>
Old-timers are old-timers, you can see through it at a glance.
Gao Zhendong smiled and said: "You are right, Mr. Xiao, I actually want to use it as a multi-purpose fighter."
"Multi-purpose fighter jets? Isn't it too luxurious to use fighter jets to do other chores?"
Gao Zhendong shook his head: "On the contrary, in my opinion, this is one of the reasons why we currently have insufficient number of fighter jets. Think about it. An aircraft can be used as a fighter, light bomber or attack aircraft. It can run faster than a light bomber, can shoot more accurately than an attack aircraft, and is cheaper than a fighter jet. Then Will our air power become more comfortable in use? "
Gao Zhendong didn't talk about battlefield interdiction and close air support. It would be a bit extraneous to talk about these with Mr. Xiao now.
(End of this chapter)