Genius is just the threshold for me!

Chapter 10 Students of Northwestern Polytechnical University

"Kid, are you alright?"

"I'm so sorry, I'm so sorry, our test flight failed."

"Are you injured anywhere? We'll take you to the hospital for a checkup!"

The three of them ran over, not bothering to check the crashed model airplane, and looked at Lin Dong with tense expressions.

"fine."

Lin Dong looked at the three of them, then at the model airplane that had been reduced to fragments on the ground: "Did you make this model airplane yourselves?"

At this point, Lin Dong roughly guessed the identities of the three people.

Unsurprisingly, they were three college students majoring in aviation-related fields, and like him, they were relatives of Chengdu Aircraft Industry Group employees.

After all, this is the outer perimeter of the Chengdu Aircraft Industry Group (CAC) base. Although there isn't much secrecy here, ordinary citizens can apply to come in and visit.

But playing with model airplanes here is not something ordinary people are allowed to do.

As for the employees of Chengdu Aircraft Industry Group...

Chengdu Aircraft Industry Group (CAC) doesn't have employees with such clear and innocent eyes, much less employees who can crash a model airplane.

"Yes, we are freshmen at Northwestern Polytechnical University. There is an unmanned aerial vehicle (UAV) model competition at the start of the semester in September. We will come back and make a UAV model."

The young man in the lead confirmed that Lin Dong was alright, and his expression clearly showed relief. Then he looked at the model airplane fragments on the ground with concern.

"Wang Rui, the engine has exploded, and the explosion point is in the combustion chamber."

At this moment, one of the three young men squatted down and carefully examined the parts of the model airplane, quickly pinpointing the initial point of failure.

"Zhang Yue, this is impossible. We tested the machine several times on the ground and there were no problems." Wang Rui looked incredulous upon hearing this.

"The explosion point can't be faked; there must be something wrong there. We'll investigate step by step."

Another young man opened his laptop and opened the design drawings for the aero-engine. The three of them huddled together and began to calculate and troubleshoot bit by bit.

"The engine design is fine; everything has been calculated, and it has been tested on the ground to eliminate any faults."

"The tolerances of the parts are also fine. All parts have been simulated and calculated. There are no abnormal noises when running at maximum power on the ground."

"The control program is also fine; the parameter settings are all conservative values, so it's impossible for it to explode due to overload."

The three of them squatted on the ground and carefully analyzed and checked for a while, confirming that there were no problems with any of the links and modules.

But this very engine, which showed no problems whatsoever, exploded in the air.

"Wang Rui, Cai Wei, let's build another one. Since the design drawings have been checked and there are no problems, it's probably because I set the torque of some engine part wrong during assembly."

Zhang Yue sighed with a look of self-reproach.

He is mainly responsible for the processing, manufacturing and assembly. Since no problems have been found in the design, it is highly likely that the problem occurred during final assembly.

While the turbojet engines in model airplanes cannot compare to the small turbofan engines used in real fighter jets, their technical standards far surpass those of piston engines in ordinary cars.

A torque deviation of just a few Newtons in a single component can cause abnormalities during operation, ultimately leading to the failure of the entire aero-engine.

"Remaking it is useless; once it flies into the sky, it will still explode."

At this moment, Lin Dong turned his gaze back to the laptop screen and casually remarked, "This is a material issue, or rather, a design issue."

What?

Wang Rui, Zhang Yue, and Cai Wei looked up in disbelief at Lin Dong, who was dressed in a primary school uniform.

"You know about aircraft engines?"

"I know a little bit."

Lin Dong nodded: "Your turbojet model aircraft engine is of average efficiency and has a low thrust-to-weight ratio. The technology isn't particularly difficult."

I go--

Wang Rui and the other two were stunned by Lin Dong's appearance.

When did elementary school students become so pretentious?

They even claimed that the technology behind their model aircraft engines wasn't particularly difficult...

Wang Rui, who was mainly responsible for the aero-engine design, pushed his laptop over with a look of disbelief and indignation: "Tell me, where is there a problem with the materials or the design?"

As students of Northwestern Polytechnical University, they would not allow elementary school students to act so arrogantly in front of them.

Even if you're wearing the school uniform of Chengdu Aircraft Industry Group Shishi Primary School, and are most likely a relative of someone from the Chengdu Aircraft Industry Group base, that's still not allowed.

"The mismatch in the intake port design from the combustion chamber to the turbine leads to excessive intake port resistance, resulting in increased fuel consumption, wasted efficiency, and the combustion chamber bearing more unnecessary pressure."

"This problem will not occur during ground testing, but once it takes off, the intake pressure and volume increase, further increasing the pressure inside the engine, and the combustion chamber will explode because it cannot withstand the pressure."

Lin Dong casually tapped the airway design parameters on the screen: "This improvement is also very simple. We can replace it with a stronger material or redesign the airway."

All the problems of modern technology, when traced back to their essence, are problems of materials.

All design and optimization are nothing more than compromises to the inadequacy of material properties.

If the material is strong enough, for example, we could use vibranium or a Three-Body Problem droplet material.

Let alone a chemical fuel-powered aircraft engine, you could easily fit a miniature sun's nuclear fusion reactor inside.

No?

You really know your stuff!

Wang Rui was completely dumbfounded.

He looked at Lin Dong, who was wearing a primary school uniform, then turned to look at his own design drawings. He racked his brains and calculated for a while, but still couldn't figure out how the problem existed.

"How can we improve this? Changing the materials is impossible, firstly because it would exceed our cost, and secondly because the processing difficulty is beyond our capabilities."

At this point, Wang Rui stopped worrying about why Lin Dong knew this and instead earnestly asked him for his advice.

He spent three whole months designing this aero-engine, starting not long after the start of the second semester. He had put so much effort into it, and he didn't want it to end like this.

"You can ask others for guidance in your model airplane competitions?" Lin Dong asked curiously.

"sure."

Wang Rui nodded: "As long as the students make it themselves and can answer all the technical details clearly and thoroughly, there is no problem. You can regard this competition as a practical assignment."

"So that's how it is."

Lin Dong nodded, his gaze sweeping over Wang Rui and the other two: "I can help you figure out how to solve this problem."

In exchange, you'll help me manufacture the mechanical parts for a model drone; I'll cover the material costs myself.

After more than half a year of study, he plans to design and build an unmanned model aircraft this summer to verify his learning results.

However, he can handle the design and software systems, but he can't handle the mechanical hardware. After all, you can't expect a primary school student to be able to handle these mechanical manufacturing processes.

He originally planned to continue seeking help from Xu Qingling's father.

However, because an unmanned aerial vehicle has many parts, even a model aircraft has at least two or three thousand parts, far exceeding the laser cannon base of the previous one by dozens of times.

Such a huge workload would inevitably affect Xu Ziming's normal work and life, so he hesitated to speak up.

But now, the appearance of Wang Rui and his two companions has shown him a new path...

Three young college students, and professional students at Northwestern Polytechnical University at that—what a perfect pair of oxen and horses!

"this……"

When Wang Rui and his two companions heard Lin Dong ask them to help build a model airplane, and then they saw that Lin Dong was wearing a primary school uniform, they were shocked.

Even though I already knew that the kid in front of me was amazing, I still couldn't help but feel a bit of absurdity.

"Approximately what size is your model airplane, and how many parts does it have?"

After a moment's hesitation, Zhang Yue, who was mainly responsible for manufacturing and assembly, thought for a moment and said, "We only have a little over a month. We have to go back to school in mid-August to prepare for the competition."

"About three meters long, with approximately two thousand parts," Lin Dong gave an approximate number.

"Can."

Zhang Yue thought for a moment, then gritted his teeth and said, "But we need CNC machining tools. We can only process two sets of parts for you, one set to assemble and one set as a spare. If your machine crashes more than twice, we won't have time for a third time."

"Don't worry, my model airplane won't crash."

Lin Dong beckoned the three of them to follow: "My name is Lin Dong. Come with me, and I'll tell you how to solve this problem with the aero-engine."