Chapter 1072 Strange Fan Design

When he was reborn many years ago, Chang Haonan deliberately named some projects the same as in his previous life.

But as his influence on the timeline becomes more and more obvious, many models with similar positioning have completely taken new paths in technology.

In this case, inconsistent naming will increase.

Therefore, Chang Haonan has no objection to the name AE1500, which is easy to understand and in line with international practices.

And since Lan Xinzhi even took the initiative to come up with the name, he obviously approved of this plan.

After all, he didn't really have any other choice.

“Are there any additional procedures required?”

Chang Haonan asked directly.

"Uh... the detailed steps are actually quite troublesome."

Lan Xinzhi scratched his head in some confusion.

Because these types of projects involve financial support, they cannot be included in the support list casually.

But Chang Haonan was not taking advantage by inserting the WS-20. Instead, he was helping out, just like when the Equipment Industry Department was established a few years ago.

If you still ask people to go through the process themselves, it would be a bit too inhumane.

"How about this, when the project is established, our office will send a representative to participate, and you can let him handle all matters related to the construction of key projects?"

He had no choice but to suggest tentatively.

"That's not necessary."

Chang Haonan waved his hand:

"After all, the Aviation Power Group is still subject to the business guidance of the Science and Industry Bureau. It is not convenient for outsiders to be assigned to the project, and we are not short of one or two administrative staff."

Lan Xinzhi thought about it and it made sense. Instead of doing all these nonsense, it would be better to do something more practical...

"Then, Consultant Chang, is there anything else that we can support this project?"

After finishing speaking, he quickly added:

"Of course, I mean in addition to the conventional funding, such as land use approval, or other aspects that require cooperation from other industries. As long as it is within our capabilities, we will give full cooperation... It would be best if we can see some clear and significant results within five years..."

Five years.

The meaning of this timetable is very clear.

China’s institutional adjustments will not be limited to the 03 wave.

Lan Xinzhi obviously hopes to produce some convincing results before the next time.

But it is impossible to put direct pressure on Chang Haonan.

So I had to express my opinion in a roundabout way.

However, he has been in charge of the Equipment Industry Department for too long, and his understanding of the military industry has been a bit slow.

Especially after the WS-10 was finalized, although China did not start developing new aircraft engine models, it has accumulated a lot of experience through the two international cooperation projects, M88/SeA650 and Trent 900.

With these accumulations, even the complexity of civil aircraft engines in testing and certification far exceeds that of military products.

But five years is still a relatively relaxed period.

After all, it took Rolls-Royce's Trent 900 five years from project proposal to planned first flight, with the design being modified several times.

The GP7200 of the rival engine alliance is scheduled to make its maiden flight in three and a half years.

No matter what, the technical difficulty of the WS-20 is much lower than these two models.

"This model is ready for everything except the east wind."

Chang Haonan smiled and replied:

"As long as the planned funds are in place, there will definitely be no problem with the R&D cycle."

"As for your additional support... just keep it in mind for when I need it in the future..."

……

Chang Haonan returned to Beijing to wait for news on the reorganization of the Science and Technology Commission.

Now that the hammer has dropped, even though what he worried about did not happen, such a big move still kept the entire Aviation Power Group busy for a while.

Therefore, it was not until a week later when the specific division plan of the various departments of the Industrial and Construction Committee came out that Chang Haonan was finally able to return to Gaojing.

I also saw the two men sent back by Ren Bingda.

“You can’t reveal the model directly, but can you provide us with the necessary design parameters?”

At the briefing, even Chang Haonan couldn't hold back after hearing this statement.

"That's it."

Jin Xu, who was introducing the situation on the stage, quickly explained:

"So Mr. Ren speculated that this was most likely a military model, and the reason why the design parameters were provided was probably because the other party took advantage of some loopholes in their contract."

Chang Haonan was originally prepared to accept Luo Luo's proposal for cooperation, but now he is even more interested:

"Does the military model need to introduce a permanent magnet power generation system?"

There aren't many military aircraft engine models under development around the world, and if we screen out some that obviously don't meet the requirements...

The answer is obvious.

"Then what else is there to guess... Isn't it F136... or F135?"

Chang Haonan immediately sat up straight.

"Well...we speculated this at first, but after getting the data, we are not so sure..."

Jin Xu said as he clicked the mouse.

The PPT then switched to the next page:

"They gave some data about the fan, but to be honest... it doesn't look like a typical military engine..."

On the screen, a design drawing is displayed.

It is said to be related to the fan, but in fact, only the parameters of the blade part are relatively complete.

Of course, if you only use the new non-contact magnetic bearing on the first fulcrum like SeA650, there is actually no need for more parameters.

Soon, Chang Haonan understood why the other party said that this did not look like a military aircraft engine...

"This size...if converted, the diameter would probably be around 1.3 meters?"

An engineer looked up after doing a simple calculation on paper, revealing a rather shocked expression:

"What on earth are they trying to create?"

You should know that most military aircraft engines will not use particularly exaggerated bypass ratios in order to ensure high-speed performance.

Generally speaking, the diameter of a high-thrust engine used in fighter jets is about 1.1 meters, while the diameter of a medium-thrust engine is reduced to around 0.9 meters.

What does it mean when this 1.3-meter diameter is placed on an aircraft engine of normal proportions?

The NK160 on the Tu-32 bomber is only about 1.45 meters long.

This size is generally designed for supersonic strategic bombers with a thrust of 20 tons or more.

But it's the 21st century now, who would still choose this technical route?

However, for Chang Haonan, this is not a problem.

In order to meet the thrust requirements of the F135 "single-engine heavy aircraft" and vertical take-off and landing, the F136/35 did choose a larger fan size.

If he remembered correctly, it should be 1.27 meters.

Including the structure surrounding the receiver, it is indeed around 1.3 meters.

Instead, it further confirmed my previous guess.

What really concerned him was the appearance of the blade.

Of course, Chang Haonan had never been exposed to the detailed design parameters of the F135 or F136 in his previous life, but when the F35B takes off vertically, the lift fan can be directly seen.

Even with the naked eye, one could tell that the leaf in front of him was completely different from the one he had seen in his previous life.

At the same time, Zhang Zhenhua, who was sitting next to him, also noticed something was wrong.

But not the shape.

"Boss Chang, isn't this blade of the British... a little too light?"

He leaned close to Chang Haonan's ear and asked in a low voice:

"Although I'm only estimating, based on its size, unless it is completely hollowed out and the wall thickness is designed to be very thin, it would be impossible to produce this weight even if titanium alloy is used, right?"

For a moment, the entire conference room fell silent.

"Maybe the British gave us false data?"

Soon, someone gave a non-technical guess:

"Based on my experience, they were not so easy to talk to in the past. They dared to bring out the design parameters before seeing any benefits."

This view has gained a lot of recognition.

Gaofei Group started its cooperative relationship with Rolls-Royce as early as the late 80s. It can be said that they are the group of people in China who understand the British best.

Whenever something happens, it’s probably right to think of the worst.

However, there are different opinions:

"With Luo Luo's level, even if it's fake data, there can't be such an obvious loophole, right?"

“And they don’t have to do that.”

Zhang Zhenhua added:

"If they want us to agree with the conclusion of the investigation report, they must sign the contract. They will have to provide the real data sooner or later. If they think it is risky to provide it in advance, they can wait until the contract is signed. There is no need to come up with such a low-level fake plan..."

People were talking back and forth, and the speculations they put forward became more and more outrageous.

In the end, naturally, no one could be determined.

I had no choice but to turn my attention back to Chang Haonan who was sitting in the first seat.

But the latter was a little undecided at this time, so he had to come up with a compromise plan:

"Anyway, let's simulate the performance of this blade first..."