"Our control system is indeed not as good as the current mainstream digital control system, but the first requirement of civil aviation engines is reliability and safety. For this reason, we decided to use a more reliable mechanical hydraulic control system after consideration. ”

Yang Hui's remarks also attracted the attention of the MPC-75 power system group of the Xifei side, and they also raised their hands in favor of Yang Hui's remarks.

First of all, it was affirmed by the German MBB, which nodded and explained the requirements of the power system of the passenger aircraft.

"This is very right, our civil aircraft engine requirements are safe and reliable, as for the use of digital control system or mechanical control system, it is not too concerned."

Passenger aircraft pay attention to safety and reliability, and now Southwest Science and Industry itself says that it does not have much confidence in the digital control system, so it must not be able to use this kind of thing.

As for the sluggishness caused by the use of mechanical hydraulic control systems, there is no way to do it. Anyway, what civil aircraft want is smooth linear output, not the violent, ultra-fast acceleration of military engines.

Using a mechanical control system, rather than a digital one, may also lead to some higher engine fuel consumption, but it is not a big problem because ......

Yang Hui saw that MBB said this, and at this time he explained another reason again.

"After consulting with GM, we found that GM's CF34-3 engine is also a mechanical control system. Most of the engine control systems are installed in the form of accessories on the outer channel casing, and due to the consistency of the interface between our two engines and the aircraft, we also use this bulky and bulky design. ”

I saw that the southwest science and industry and the aircraft developer all said that they would use mechanical and hydraulic control systems. MTU didn't say anything more.

In any case, the biggest competitor generally uses a mechanical-hydraulic control system, and everyone is each other. In the future, in the competition, the CG2000 will be enough as long as it does not lose points in the engine control system.

"Then use the mechanical-hydraulic control system, anyway, our engine control system has been developed. If you want to consider the digital control system in the future, you can only look at the subsequent improvement projects of the engine. ”

Reluctantly gave up the demand to continue the use of digital control systems, MTU was also lacking interest at this time.

Now it is only the final assembly of the engine off the assembly line, and it will take a period of time to really start and run the engine, and the cold start test of the whole machine in the middle is quite troublesome.

The first batch of engines for testing rolled off the assembly line, Yang Hui also nodded and said nothing, asked Chief Wen a few words, and learned that the cold start test of the engine will start tomorrow.

Only then did he turn around and announce: "Five engines have been successfully assembled and rolled off the assembly line." This marks that our CG2000 engine has entered an important node, everyone goes back to prepare, tomorrow will start the whole machine cold start test, must be ready to carry out technical troubleshooting at any time. ”

After saying that, he beckoned someone to push the engines aside, and the engines would be sent to the test center of the second institute later.

After several years of rapid development, the test center of the second institute has also continuously added a variety of engine test equipment, although there are not many new big ones, but the small and key test equipment is quite perfect.

Except for such things as high-altitude platforms, it is really impossible to simply talk about construction. Other test work can be completed in the second institute, which also reduces a lot of trouble.

……

Just when the two engine projects of Southwest Science and Industry were working overtime to develop, a fierce debate broke out in the 420 factory, and Southwest Science and Industry proposed to cut one-third of the administrative personnel. This is simply going to make the 420 factory fryer.

Some people who usually do things with peace of mind and don't offend people much also panicked at this time, and the ones who jumped the most were those who were self-aware. They knew their own situation, and naturally they were all kinds of ways to prevent the merger of Factory 420 into Southwest Science and Industry.

And a big matter related to the future and fate of the unit. Naturally, it will be transmitted to the grassroots employees of the 420 factory, all of whom are people in the system. For the reputation and income of Southwest Science and Industry, it is absolutely envious and jealous.

Now I have the opportunity to join the Southwest Science and Industry family, and those officials are still making trouble in it for their own interests, which finally completely detonated the contradictions accumulated in the 420 factory for several years.

Angry, the grassroots workers also sat quietly in the administrative building in groups, dragging their families and mouths, shouting all kinds of slogans demanding the payment of arrears of wages and reimbursements, blocking the officials and men in the office building, and at the end of the day they were hungry and panicked.

The security office of the factory also surprisingly did not stand up to maintain order at this time, and now the matter is big, which directly attracted the high-level local government of Jinguancheng, and even this kind of group. The sexual incident also caused trouble to the upper echelons of the imperial capital.

After understanding the situation, the high-level leaders of the imperial capital also began to think about solving problems, and the National Defense Science and Technology Commission had to have a great say at this time, so it ......

No matter how much the emperor is ready to deal with this 420 factory incident, there must still be some time to brew, so let's not talk about the 420 factory for the time being.

In Southwest Science and Industry, Yang Hui also met Northrop, the vice president of Northrop in Southwest Science and Industry, who had not come to find Yang Hui for a long time, and this time he came to Yang Hui's family with two news.

Naturally, he sat on the guest chair opposite Yang Hui's desk and told Yang Hui very directly.

"General Manager Yang, this time I would like to tell you a piece of news, the project of investing in Embraer launched by our two sides six months ago has achieved phased results, Northrop and Embraer have negotiated, and there must be about a month of detailed evaluation to finalize the entire contract."

Hearing this, this is good news, which can make people happy.

If you want to talk about Embraer, about the technology shareholding of Southwest Science and Industry in Embraer, in fact, it has been discussed half a month ago, and the reason why the contract has not been finalized is that there is no consensus on the purchase price between Northrop and Embraer.

As for the issue of shares, there was no suspense for a long time: Southwest Science and Industry Technology owns 35% of the shares, Northrop will also buy 35% of the shares, and the remaining 30% will continue to be held by the Brazilian government.

For this plan, Yang Hui will naturally not object, such a share structure makes no one party dominant, and the triangle is the most stable structure.

"That's a nice thing to do, but you're definitely not here to inform me about it, are you? I think there's something else to say......"

Yang Hui had an expression of I absolutely not believe that you were a good person, and he was also guessing in his heart what else this Northrop was going to do?

And Northrop here naturally did not make a special trip to inform Yang Hui about Embraer, what he really wanted to inquire about this time was some rumors that Northrop heard at the top of the imperial capital of the Republic.

"You're guessing right, I'm here to confirm one thing: I heard that your national army has begun research on a twin-engine fighter? Isn't it ......"

At this time, Northrop's expression was similar to that of gossip men and women when they heard the news of the explosive lace, and the excitement on their faces was not too obvious. (To be continued.) )