Military Industry: On the eve of the Anti-Eagle War, unlock the skills of a strong country

Chapter 35 Qin Dongtian's Worries

After arranging all the work, Zhang Tian announced the adjournment of the meeting.

Everyone expressed in unison that they would ensure the completion of the task, and then went out with full confidence.

But Qin Dongtian didn't leave and stayed behind.

After thinking about it, he still felt unsure. Although Zhang Tian was the factory director, he still thought he should persuade him.

It can't be because everything has always been smooth sailing.

Just thinking about going to heaven.

After everyone had left, he came up and asked quietly, "Director, are you sure about this helicopter?"

"Isn't this a bit too risky?"

Zhang Tian looked at Qin Dongtian with some amusement: "Director Qin, are you worried about this?"

Qin Dongtian nodded.

He said, "This is definitely an airplane. We have never seen one before. You suddenly announced that you are going to build an airplane. I am worried..."

Before he could finish, Zhang Tian waved his hand.

"Director Qin, don't worry about this. Since I can get the information, it means I have confidence. You just need to concentrate on doing it."

"Now that we have built tanks, we cannot ignore the guarding power in the sky."

“This is an idea I’ve been thinking about for a few days.”

Qin Dongtian said anxiously: "But this plane can't run on the ground like artillery and tanks, it has to fly into the sky."

“Is this too radical?”

Zhang Tian smiled when he heard that.

He thought what Qin Dongtian was worried about, it turned out he was worried about this.

Isn't it just flying into the sky?

A helicopter makes me lose confidence, so what if I tell him to create a mushroom cloud in the future?

That would scare him to death.

He said with a smile: "Director Qin, let me tell you another piece of news. After the success of this helicopter, we will also have a fighter jet project next."

After saying that, he packed up his things and left the meeting room.

Qin Dongtian was stunned.

Wow, it turns out this is not just a fight.

This guy is so awesome that he even made a fighter jet?

Qin Dongtian shook his head and sighed.

Also left the meeting room.

Zhang Tian is the factory director, and he has done all the persuasion he should do.

The rest depends on the results.

After returning to the office, Zhang Tian wrote down everything he wanted and then made a phone call to the general assembly department.

Those who need help should still ask for it.

Otherwise, he wouldn't be able to get it all together at once.

Minister Wang was not in the office, so his secretary answered the phone. The other party asked Zhang Tian with a smile what was the matter.

Now Zhang Tian is a favorite in Minister Wang's eyes, so he doesn't dare to put on airs in front of him.

Zhang Tian said everything he wanted.

The secretary wrote them down one by one, and then told Zhang Tian and other leaders to report as soon as they returned.

Zhang Tian thanked him with a smile and hung up the phone.

Now, the advance has begun.

Holding the information, Zhang Tian plunged into the R&D center.

…………

Time passed quickly, and in the blink of an eye, another week had passed and the final assembly team had delivered the goods.

Basically, there is no difference.

Some engine parts are missing.

All the key electrical instruments were present and were obtained through certain overseas channels.

Zhang Tian felt more confident.

Inside the workshop, after developing the tank, things became busy again.

Everyone is full of energy.

They are preparing to build an airplane. Is there anything more exciting than this?

As for whether it can be made.

No one worried about these things.

One thing they are very sure of now is that if they follow Zhang Tian’s direction, they will definitely not go wrong.

Just look at those artillery, tanks and the like to prove Zhang Tian's ability.

Qin Dongtian and his men were working on the 701 engine.

With the experience from last time, they are now able to build engines with some ease.

The structural principles are mostly similar.

But now it is still stuck in cylinder manufacturing.

Zhang Tian went to see it several times.

But Qin Dongtian patted his chest and told him to go about his own business.

He can handle this little thing.

Seeing the situation, Zhang Tian didn't force it anymore and took his men to work on his helicopter propeller.

The venue is located in the courtyard.

A helicopter propeller is one of the key components of a helicopter, just like a human foot.

With it, the helicopter can move.

Helicopter propellers typically consist of multiple blades whose shape and design are carefully calculated and optimized to achieve efficient aerodynamic performance.

Its working principle is to generate lift and thrust through rotation. When the propeller rotates rapidly, the blades cut through the air and make the air flow downward.

This is where aerodynamics come in.

According to Newton's third law, this will generate upward lift, thereby supporting the weight of the helicopter so that it can take off. At the same time, adjusting the direction and angle of the propeller rotation can control the flight direction and posture of the helicopter.

Like in front, behind, or quick penetration and violent attack.

Zhang Tian said this was not difficult.

He's not an expert in aerodynamics, but he has a system.

All necessary information is available.

Why bother researching? Just build it.

The propeller adopts the lay-up process.

Yes, it's the kind that is laid on layer by layer.

First, the fiber material pre-impregnated with resin is laid layer by layer in the prepared mold according to the designed laying order and direction, and then placed in a high-temperature and high-pressure curing furnace to allow the resin to cure and form a solid structure.

Thanks to that great genius master, the curing furnace was developed long ago.

Just use it directly

The curing time does not need to be too long, as long as the specified time is reached, and then it is precisely machined to achieve the designed shape and dimensional accuracy.

Size is important, if it’s too big the helicopter won’t be able to handle it.

If it’s too small, I won’t feel it.

Can't fly.

The next step is to mill the blade shape, trim the edges, and process the mounting holes.

Then it is painted and the propeller hub is manufactured.

Everything is ready, it's just a matter of assembling, installing the blades on the hub, using thick and large bolts to firmly connect and accurately align the target.

This is not over yet, there is also a dynamic balance test.

Yes, this is just like car tires, and it also needs dynamic balancing test.

Just in a different way.

Use balancing equipment to perform dynamic and static balancing on the propeller to see if its vibration frequency is within the parameters.

If it is too high, it is unqualified.

Then we can only start over again.

Fortunately, after testing, all data was very normal.

The subsequent performance test cannot be done for the time being.

Because this requires a special experimental environment.

Wind tunnel testing.

Zhang Tian hasn’t built this yet. Considering that the propeller has been successfully completed, this laboratory can’t wait any longer.

This helicopter will also be used when the time comes.