Li Zhen spoke, let me try.

Then you have to try.

According to Liu Jinghong's idea, it is necessary to wait, wait until the mobile institute breaks through and all the data are qualified, and then experiment when the theory is fully prepared.

But Li Zhen didn't want them to waste their time like this anymore.

Instead of pinning all your hopes on others, it is better to touch the south wall once and then be honest and down-to-earth.

Under Li Zhen's words, the people of the mobile institute fully cooperated, and the plan to develop a rotary engine was temporarily shelved. Instead, the data for testing the radial engine began.

When I went to the experiment seriously, I found that it was too difficult.

Because it's hard to get two engines to generate the same amount of power. Every engine is absolutely unique and has mistakes.

The problem is obvious.

Because the industry of New Kyushu cannot be compared with the industry of Zhangzhi's era at all.

Although Shin Kyushu is an industry, machines only replace human power, but they still need human command.

If a steel plate is cut, it needs to be measured by hand, and then cut by hand with a machine.

If the data is measured by people, then there is absolutely no absolute truth, and there will definitely be all kinds of small errors. Even the most professional master has a trembling hand.

And Zhang Zhi was a real CNC machine tool in that era.

It is cut by the computer directly at the command of the machine, and the computer has more advantages than the human brain in that the computer does not make mistakes in the data. It is said that this batch of goods is all one specification, and it is absolutely impossible to have an error. Not a millimeter.

However, the industry of New Kyushu is far from that level, and even if there is a template to restrain it, it still cannot be perfectly accurate.

Small errors in the specifications of the parts and components will cause errors in the power of the finished engine. It's almost impossible to build two engines with exactly the same power and power.

That's what Li Zhen said, why they are wasting time.

Because placing an engine on the wingspan, now it is simply impossible.

The most important thing is that only Li Zhen knows one of the most important reasons. At that time, the engine that could be placed on the wingspan was not a propeller engine at all, but a turbojet engine.

What is the concept of a turbojet engine? That's a concept that none of them have yet touched. Even Li Zhen is very vague.

It is impossible for Zhang Zhi to give Li Zhen a drawing of a turbojet engine, and he can't tell it at all.

After all, Zhang Zhi is just an ordinary college student, no matter how much she learns, she will not be able to build a turbojet engine with her bare hands. It takes more expertise than the usual imagination.

And the propeller engine placed on the wingspan, which ...... Actually, it won't work out.

One problem they are ignoring. Placing it on the wings will increase the weight of the wings. In fact, the lighter the wings, the more lift they have. Two star-shaped engines are added to the wings, and the wings will instantly add nearly a hundred catties of weight. If you want a smooth flight, the power requirements for the engine are too high.

So that's why only turbojet engines can be put on wings, because turbojet engines are much more powerful than propeller engines.

Li Zhen can't understand these truths with them, there is nothing wrong with being stubborn, just let them try, and failure can be regarded as experience.

Under Li Zhen's arrangement, the Mobile Institute and the Aviation Institute entered a state of close communication again, and began to cooperate for the first aircraft that could fly into the blue sky.

A week later, the people of the mobile institute worked hard to debug the two star engines, and the power difference was not big.

And the Aviation Institute also spent this week constructing the fuselage.

They added steel pipes to the wingspan, which were directly connected to the fuselage to form a vein of bones and bones.

Then, the latest electric welding technology of the Institute of Electromagnetic Weapons was used to weld two star engines to the wings.

With two propellers installed, the world's first aircraft in the true sense of the word was born.

Liu Jinghong sent out a number of invitations in advance, inviting political dignitaries, wealthy businessmen, and scientists from all over the country to watch the test flight.

For this test flight, everyone took it seriously.

If this test flight is successful, the new Kyushu can officially announce that it has entered the era of aerospace.

Liu Jinghong also attaches great importance to it.

On the day of the test flight, a temporary airport runway that had been rested by Dafeng Tai was emptied and overcrowded.

Xun Shifei came, and the Supreme Commander of the Eastern Military Region came. Scientists from all over the country came. Even Yun Kexian, the former president of the National Academy of Sciences, came.

All the dignitaries and dignitaries came. The temporary take-off runway will be full on both sides of the stand.

A black sedan drove quietly, Li Zhen got out of the car, and then sat in the pergola that had been set up in advance.

Xun Shifei stood up and shook hands with Li Zhen: "Congratulations, junior brother, this time the Kyushu Academy of Sciences is finally going to successfully conquer the blue sky." ”

Li Zhen smiled, didn't say anything, sat down and drank tea.

The people sitting in the pergola took a deep look at Li Zhen, and they all felt that Li Zhen didn't seem to be optimistic about this test flight, and they were thoughtful.

A moment later, the entire runway was completely noisy, and everyone was looking at the end with their necks tied up.

A large trailer drove up with a behemoth covered in canvas. When the canvas was lifted, a silver-colored, streamlined, sci-fi plane made its debut and appeared in front of the world.

"Wow, that's handsome."

"This ...... Is this an airplane? ”

"Silver."

"Is this the overlord who is about to conquer the blue sky in the future?"

"The information revealed by the Kyushu Academy of Sciences said that the name of this plane is Swordfish."

"Swordfish? Why swordfish? ”

"Because you see how much it looks like a swordfish, it's so sharp in front that it can poke people to death."

"Good name, Swordfish."

"I don't know if I can make it."

“……”

Liu Jinghong jumped out of the car and arranged for someone to get the swordfish off the trailer.

Then the staff of the aviation institute took a variety of tools and began to carry out the final measurement test.

'Buzz'

The moment the engine was running, everyone on the entire runway held their breath. Listening to the shocking sound of the engine and looking at the propeller that began to spin at high speed, there was a touch of fanaticism in his eyes.

The moment the engine starts. The swordfish began to struggle uneasily, and dust was rolling up behind it, like an angry dragon trying to ascend to heaven, constantly struggling.

If it weren't for the rope behind it, it would be full of surging power, and it would have rushed out in an instant and jumped into the blue sky and white clouds.