"Hello, Chief Engineer Zhang, hello!" Liu Chi was still very respectful to this group of people. He walked up to them politely and shook hands.
These are the cutest group of people, worthy of our respect.
"Hello, Teacher Liu." Zhang Zhi also shook hands with Liu Chi enthusiastically.
As the chief designer of the 21st HNA, he naturally understands things that others don’t understand.
Although he didn't know as much as Hong Changtian, if someone suddenly joined his team, he naturally had to know something.
Although this person in front of me looks young, but...
He is a technical expert with a net worth of tens of billions.
"This is Chen Jiahua, deputy chief designer of XX HNA."
"Hello, Engineer Chen!" Liu Chi took two steps forward.
"......" After two minutes of introduction, Liu Chi sat down!
Liu Chi saw that everyone was staring at him, and without further ado, he went straight to the point: "Three of you, before I came here, I only saw the general information, and I don't know the details. Is there anyone who can give me a detailed introduction?"
"Let me introduce you, Teacher Liu." Zhang Zhi stood up, turned on the big screen on the wall, and picked up the laser pen.
"There are currently three main causes of 21st-century fighter accidents."
"The first is: when taking off, if there is a wind of level 4 or above, the flight will be unstable. If it is above level 5, the accident rate reaches 60%."
"The main reason is that during takeoff, the flight speed was too slow and the force-bearing area was large. When the aircraft was subjected to resistance greater than N, it was difficult for the aircraft to control its balance, thus causing the accident. Therefore, the force generated by a force 4 wind is a critical point."
"The second is that when the plane lands, because the runway is too short, if it is forced to stop, the damage to the fuselage will be very serious. Because the entire aircraft weighs more than 30 tons, under the effect of inertia, it will need a major repair after landing eight times."
"......" Liu Chi nodded, and seeing Zhang Zhi's gaze towards him, he nodded to show his understanding and asked to continue.
"The third possibility is that because the 21 aircraft is a heavy, high-altitude, high-speed fighter, when the project was designed, the maximum altitude was meters and the maximum speed was Mach 3, which is 1,000 meters per second."
"At such a high speed, we flew five times and the engine shut down twice. We haven't found the cause yet, but we can infer that the engine cannot work effectively at high altitude and high speed. This is an engine problem."
"......"
"Would it be convenient for you to show me the detailed design information of the 21 fighter?" After Zhang Zhi finished his explanation, Liu Chi thought for a few seconds and asked several people.
"Sure, wait a moment." Zhang Zhi saw Old Hong nod, then he turned the computer in front of him to Liu Chi and said, "All the design data is in this computer."
"Let me study it first." Liu Chi chose to keep silent before understanding the situation.
Because Liu Chi kept his mouth shut, all the big guys were busy with a lot of things and had no time to waste, so today's meeting ended hastily.
Liu Chi took the information back to his temporary residence, called Ye Yuxin to report his safety, and then started to study the XX fighter.
After Liu Chi spent two days to thoroughly understand the detailed information;
The corner of his mouth twitched.
These three problems are not difficult to solve if you hand them over to your own mobile phone, but they will basically empty your bankroll.
The first question: When the wind reaches level 4, the fighter plane is subjected to excessive force. In this case, the load balancing system can be used. As long as the force-bearing surface is calculated, it should not be difficult to solve.
The second question: Isn't it too heavy? Just install the suspension system and turn it on during landing. If necessary, the 21st fighter can be designed as a vertical take-off and landing aircraft, thus saving the runway.
The third question: Although it is difficult, it is not impossible to solve it.
These old guys.
Liu Chi smiled bitterly.
The look is not ordinary poisonous.
Now that I'm involved in this project, I have to find a way to keep the two technologies I have confidential.
You must always be on guard against others!
For the first two problems, I guess those old guys know they can solve them themselves. As for the third one, they are definitely trying to catch me and take a gamble.
Liu Chi pondered over whether he should help them solve the third problem.
If the problem is solved, the power system must be replaced.
If it is changed, the entire aircraft will have to undergo a major modification, which may not be something that can be done in a short period of time.
MMP, it would be convenient if there was an automatic design system.
There's no need for any design. Just input the parameters you want and it will take a few days at the fastest.
If an aircraft exceeds Mach 3, the thrust must be at least 35 tons.
Currently, domestic engines are unable to reach this value.
Even “Taihang” is not acceptable!
The G series only weighs 30 tons when two are installed!
If you solve this problem yourself, your identity will become more sensitive.
etc......
Liu Chi raised the corner of his mouth.
Why do I have to solve the third problem?
Wouldn't it be better if you can make the third question no longer a problem? This 21st fighter weighs 30 tons, which is why it needs such a large thrust. If you can make it 15 tons or even lighter.
Then a thrust of 30 tons should be enough!
Thinking of this, Liu Chi couldn't help but want to give himself a thumbs up!
So damn clever.
Anyway, we already know about the balance system and suspension system, so there is nothing wrong in giving them some help.
Just keep it confidential.
As for the power system, let's wait and see. Eat one bite at a time and don't be impatient.
But first we need to prove it!
According to the previous robot's suspension area, it can suspend a weight of 40 kilograms, and the XX aircraft is 30 tons, which means 30 tons and 40 kilograms.
Multiply it by the area, 0.042 squared.
If you want to offset all gravity!
That means it needs to be at least 31.5 square meters.
The entire 21st fighter is 23 meters long, 19 meters wide and 5.08 meters high.
The entire wing area is 68 square meters, which is completely sufficient. Even if some area that cannot be etched with the suspension array is subtracted, it is still sufficient.
Another thing to consider is the temperature!
If the flight speed reaches Mach 3, at such a high speed, the Eagle Sauce is FX5, and the surface temperature is about 170 degrees at a speed of Mach 2.5. At Mach 3, the surface temperature of the aircraft will reach about 300-350 degrees.
This operating temperature is no problem at all with the strong magnetic alloy installed on the robot!
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