Gao Qiancheng patted Miao Yongfeng on the shoulder.

Miao Yongfeng nodded stupidly and temporarily suspended the metal flaw detection.

But his expression was still unconvinced.

He stared at Wang Bu'an silently with gloomy eyes.

Boy, you're in luck.

But what if you can pass the basic test for 2 hours?

There are countless tests to come.

All the tests are very brutal. There is something you have to bear.

Engines developed by several research institutes, factories, and dozens of first-class universities may not be able to pass the test.

You're alone? and you want to resurrect the turbofan 6? just kidding

Cheng Kailong slowly became nervous again.

The main thing is the atmosphere of the scene, it doesn't feel right!

The vast majority of old experts, old professors, do not seem to be very optimistic about turbofan 6.

Their resistance can be seen by idiots.

If I had known, I would have changed the test site.

After all, this kind of experimentation is informal.

In other words, this is a private test, and it cannot be put on the table. If you mess up, there will be absolutely no next time.

Will Wang Buan mess up?

It's hard to say for the time being.

It's time to speak.

Wang Buan is very calm.

What is that? It's only 3,000 rpm. The combustion chamber temperature is less than 800 degrees Celsius.

How high can the 50 billion tons of hydraulic press forged parts withstand high temperatures? Wang Bu'an himself has no way to accurately estimate it.

Purely in terms of raw materials, it can withstand high temperatures of 7200 degrees. If there is a special bonus to the process, then 10,000 degrees is no problem. What kind of combustion can reach 10,000 degrees? Just with aviation kerosene? Hehe, this is completely like using matches to barbecue titanium alloy! It's strange if it has an effect.

"Continue testing?"

"Keep testing. ”

Zhao Ce pressed the start switch.

The second stage of testing begins.

This time, the continuous operation time of the engine will exceed 10 hours.

The engine speed is still limited to about 3,000 rpm.

What does this speed do?

Cruise.

Subsonic cruise.

Generally speaking, when a fighter cruises, the speed is around Mach 08.

This speed is the most fuel-efficient. The life protection of the engine is also the best. Only in special circumstances will the engine turn on the afterburner and increase the speed.

Many people think that modern fighter jets fly at supersonic speeds all the time, but they are not.

Even a fighter like 15,35 will not cruise faster than the speed of sound.

Supersonic cruise is regarded as one of the basic characteristics of fifth-generation fighters. As far as the current situation is concerned, for the time being only 22 of the US imperialists will be able to do it.

And, of course, the super pervert of 71 Blackbird.

Europe's Typhoon fighters can do the same. The problem is that it shortens the life of the engine. Pay for one's whistle.

Subsonic cruising tends to take a long time.

Five hours is often needed. Ten hours is no exception.

What are these ten hours asking for?

Just two points:

Stable.

Reliable.

To put it simply, don't make mistakes.

If the engine can't even do the most basic ten hours of cruising, it's scrap metal. It's definitely going to be thrown in the garbage.

Ten hours above that, thirty hours. Then came a hundred hours. Then three hundred hours. And then a thousand hours. Then there are three thousand hours and so on, and the longer the experiment, the better. In the case that the parts are not replaced, the longer the maintenance time, the better.

This time can also be called zero downtime.

Some of the excellent engines of the American imperialists, the zero downtime is very amazing.

Among them, 15 fighters are the most outstanding. Up to 500 hours or more. 22 and 35 are squeamish. Only less than 100 hours.

In terms of reliability and maintenance difficulty, 15 is the most practical. It can be described as sturdy and durable.

In terms of fighters that have been put into real combat so far, 15 is undoubtedly the most outstanding.

Whether it is the Su-27 or the MiG-29, they are not opponents at all!

"I went to sleep. Wang Buan couldn't hold it anymore.

Reliability testing and stability testing are boring. It takes a long time.

There was no way he could have waited ten hours on the spot.

"Oh, good. Follow me. Cheng Kailong hurriedly arranged a room for him.

Of course, the 556 Institute has guest rooms.

Wang Bu'an picked the largest and most comfortable room, checked in, bathed, and slept.

Fall asleep.

When I woke up, it was night again.

Looking at the time, it seems that ten hours of testing is about the same. Just go and see the results.

When I came to the test workshop, I found that the LCD screen had begun to count down.

Turbofan 6 engine, has been running for 11 hours, 43 minutes and 39 seconds.

The previous 2 hours, plus the current 10 hours, will soon have a cumulative run time of 12 hours.

There were no failures.

Stable is like a scale.

The only downside is that it consumes a lot of fuel.

At 3,000 rpm, its fuel consumption is more than 1 ton per hour. Resulting in the fuel system requiring several refuelings.

This is an inherent flaw in the design of the turbofan 6. Wang Buyan can't change either.

Unless hydrogen is introduced to support combustion.

But then it needs to be overhauled.

I didn't see Miao Yongfeng, nor did I see Gao Qiancheng, so I guess I went to rest.

After all, this kind of test is boring.

Except for Zhao Ce's hard work, the personnel on the scene have all changed.

Cheng Kailong and Zhao Ce were smoking cigarettes on the side. Both of them are big smokers. The institute also does not ban smoking. It shows that there are a lot of smoking guns. I often see cigarette butts on the ground.

Seeing Wang Bu'an coming, Cheng Kailong took a few puffs greedily before throwing the cigarette on the ground and then stepping on it.

"Pay attention," Wang Bu'an pointed to the big slogan on the wall.

Fireworks are prohibited.

Cheng Kailong laughed.

Zhao Ce also laughed and took a few quick puffs greedily.

"What do you continue to test?" Wang said, "or reliability and stability?"

"Probably not. Zhao Ce shook his head and said, "Test afterburner." ”

"That's pretty much it. ”

"One?"

"Don't. ”

Wang Buyan refused to smoke.

He circled around the various test instruments.

There are no anomalies.

Very stable.

Cybertron's technology has always been trustworthy.

The integrated turbofan 6 engine cannot find any flaws. Defects are also not possible. Unless it's left the earth.

It's that fuel consumption, it's so touching.

This is still not in the state of afterburner, and the turbo is not deeply added. Less than 50 kilograms of air are inhaled per second.

If the afterburner is turned on, the turbo speed will skyrocket, and 130 kilograms of air will be drawn in every second.

At that time, I am afraid that fuel consumption will increase by more than three or four times.

I don't know who bears the cost of this test in the end?

"The director is here. ”

"Attention all. ”

While speaking, Chen Daguang had already appeared with a large group of people.

Sun Chaosheng, Miao Yongfeng, Gao Qiancheng and others are all there. There is also an unfamiliar face. The introduction is that it is the 775 Research Institute's Pu Qian Cheng.

A skinny old man, he feels a little similar to Ma Xiangtong.

People like them are almost all raunchy. Shaggy hair, bearded bazaar. I don't care at all.

All they care about is their work.

Pu Qiancheng's main area of responsibility is the fire control system of fighter jets. Including a variety of armaments.

Why is he here? Must have been called.

The engine is the heart of a fighter.

Everything else needs to revolve around this heart.

How strong is the thrust of the engine?

How many weapons can it carry?

What type of weapons is it carrying?

What weapons does it use best?

All of this has to be done after the accurate data of the engine is in hand.

It seems that the fire control system of the 15 carrier-based aircraft is more depressing. Due to the limitation of take-off weight, it can carry very limited weapons. The fire control system has little room to play.

On the contrary, if it is such as the 10 attack aircraft of the US imperialists, which can hang a large number of weapons to the fullest, then the fire control system is powerful.

"Comrade Xiao Wang, how much is the estimated thrust of this turbofan 6?" Sure enough, Pu Qiancheng asked.

"It's certainly no problem to meet the design targets. Wang Buyan replied cautiously.

"I hope so. Pu Qiancheng was a little emotional.

"Definitely. Wang Buan replied in a deep voice.

He could understand Pu Qiancheng's feelings.

Heroes are useless!

It seems that the original J-8 fighter, due to the lack of power of the engine, can carry not many weapons, and many designs are not used.

Air-to-air

Air-to-ship

Air-to-ground

Missiles, cannons, machine guns, aerial bombs, cloud burst bombs, thermobaric bombs

In our Huaxia arsenal, there are all kinds of weapons. There are atomic bombs and hydrogen bombs. As long as you can use it, you will be equipped without hesitation.

Unfortunately, the premise is that you have to fly.

If there are too many weapons, too heavy, and you can't fly, it's a tragedy.

If there is any hope for Pu Qiancheng, the thrust of the engine is large enough for him to pour weapons on the plane as much as possible.

It's a pity that this wish has never been fulfilled.

The thrust of the engine never feels like it's enough.

"Increase the rpm?"

"Speed limit!"

Zhao Ce pressed the start switch.

The turbo is deeply involved, and the engine revs rise sharply.

4000 rpm

5000 rpm

6000 rpm

The sound of the engine is also noticeably enhanced.

The air jets from behind became very violent, sweeping away all the dust on the ground, as if it had produced a ten-level storm.

Everyone can't help but retreat.

I am afraid that I will be irradiated by the high temperature of the tail flame.

However, the test data showed that the outside temperature of the engine changed very little.

However, Wang Bu'an integrated layer after layer of heat-insulating ceramics into the shell of the engine, which can well block the heat.

The engine's nozzle is also specially treated to block heat scattering.

The temperature inside the main combustion chamber has reached more than 1400 degrees.

Ordinary parts simply cannot withstand such high temperatures. Abnormalities tend to occur.

However, they are not ordinary components.