Eagle Sauce: The 055 destroyer was launched into the sea just after the founding of the country?

at the same time.

Inside the Great Wall Military Factory, the director's office.

Fang Yu was working at his desk, sketching lines on a piece of draft paper.

After he reported the food plan to the top leaders of Longguo.

In less than three days, a large number of science and engineering scholars and workers were sent to the military factory.

Fang Yu immediately formed an engineering team.

Zhao Zecheng was the team leader, responsible for coordinating the work and assisting the scientists and workers. He started the construction of the fertilizer plant based on the drawings and molecular formulas he provided.

Wang Changhai and Jiang He worked together to open up a piece of wasteland in the southeast corner of the military factory.

Under Fang Yu's guidance, a greenhouse was built and a grain seed improvement program was started.

Different from the weapons Fang Yu has designed so far.

The improvement of grain seeds cannot be accomplished overnight.

I did everything I could.

The rest can only be left to time.

But Fang Yu was not idle either.

Now that the food plan has been handed over, he can concentrate on researching helicopters.

In fact, the most important and core part of a helicopter is the same as that of a fighter jet, which is its engine.

Although we have the experience in developing turbofans for the JF-17 fighter.

However, unlike fighter jets, helicopters require specialized turboshaft engines.

It differs from turbofan engines in three aspects.

Working principle, structure, and characteristics.

A turboshaft engine drives a compressor through a turbine and burns the gas, which is then pushed out through a nozzle to generate thrust.

The turbofan engine not only adds a large fan outside the turbine, but also uses a compressor to compress the air and inject fuel into the combustion chamber to generate thrust.

And in terms of structure.

The turboshaft engine is relatively simple and mainly consists of three parts: compressor, combustion chamber and turbine.

The turbofan engine is relatively complex and mainly consists of two front and rear fan blades, a compressor, a combustion chamber, a turbine and a nozzle.

In terms of characteristics.

Turboshaft engines have the advantages of light weight, high power and compact structure, and are suitable for small aircraft and helicopters.

Turbofan engines have higher thrust and less noise than turboshaft engines, and are suitable for large passenger aircraft and new fighter jets.

It is because of these differences that the research and development of the helicopter is not as smooth as Fang Yu expected.

In fact, this is not just a problem that Fang Yu encounters.

Even in the era when Fang Yu lived.

Longguo is now able to independently produce turbofan engines with performance comparable to that of the Soviet Union and the United States.

However, the turboshaft engine for helicopters was not successfully developed until a few years later.

There are other reasons besides these that make manufacturing difficult.

It’s also because Fang Yu and his team chose to imitate the famous General Motors T700-GE turboshaft engine from the very beginning.

This turboshaft engine is one of the best turboshaft engines in the entire history of helicopters.

According to statistics, it has been counted since it was developed.

The cumulative operating time of all existing engines has reached 100 million hours!

Moreover, this engine has an extremely shocking feature.

That is, even if all the lubricating oil in the engine is drained, it can continue to run safely for more than half an hour.

This fundamentally eliminates the fatal flaw that once the lubricating oil leaks, the engine will directly overheat and explode!

The side also reflects the precision and reliability of this turboshaft engine.

However, because it is so precise, the error requirements for various parts are particularly small.

This also leads to the difficulty of developing mold manufacturing.

In order to solve this problem, Fang Yu had to modify the engine.

It has reached a level that Longguo can produce with its current industrial level.

Although this will cause a loss of some motivation, it at least solves the problem of whether or not to gain something.

As long as Longguo's industrial level continues to improve, Fang Yu believes that sooner or later, Longguo will be able to produce a full-powered T700 engine.

Even making a turboshaft engine that surpasses it is not difficult...

……

A month later.

With Fang Yu's unremitting efforts day and night and the hard work of other technicians.

Longguo’s first turboshaft engine was finally successfully manufactured!

"3!"

"2!"

"1!"

"ignition!"

One day later.

Under the watchful eyes of dozens of technicians and workers.

Fang Yu spoke word by word and gave the order to ignite!

The moment the ignition button was pressed, the crowd immediately felt a powerful stream of heat gushing out from the tail of the engine!

At the same time, the engine's massive bearings began to spin rapidly...

However, although the ignition has been successful.

The crowd present did not make any sound, all their eyes fixed on the starting engine.

Everyone's face showed an expression of great concern.

Because they all know that successful ignition is only the first step.

A true bench test requires the engine to run continuously for more than an hour without stalling to be considered a preliminary success.

And as time goes by.

The engine is still running well and all the data are normal.

Finally, the time came exactly one hour later.

Just as Fang Yu pressed the power off button.

A thunderous cheer echoed in this huge workshop!

"Success! We really built a turboshaft engine!"

"Inlet pressure 1.7 MPa! Temperature reaches over 1500°!"

"Under such high temperature and high pressure, there is no deformation at all!"

"Director Fang's design is truly amazing!"

"This turboshaft engine is far ahead of the rest of the world!"

"With this turboshaft engine, there's no need to worry about not being able to build a helicopter!"

"Director Fang is too amazing..."

"..."

Seeing this scene, the technicians present burst into excited exclamations.

Words of praise surged towards Fang Yu like a tide.

However, in the face of so much praise.

Fang Yu did not have the urge to float up.

Instead, he lightly kicked the butt of the technician closest to him.

Then he cursed with a smile.

"Fuck you, who's Han Chan?"

"You guys have been in the factory for so many years, and you've learned to flatter?"

"Opening champagne so early, what's wrong with you guys?"

Fang Yu said this and added with a frown.

"We've only just finished building an engine. We're still a long way from a finished helicopter!"

"After you're happy, let's get moving!"

"Ask other workshops to send over the remaining assembly parts!"

"Let's start assembling now!"

"Success or failure depends on us men!"