The four people who came to visit Lin Hongfei on the Ukrainian side were Yatzko, Minister of Industrial Policy of Ukraine, Pavel, deputy chief designer of the Zaporosh Progressive Machine-Building Bureau, Viktor, deputy chief designer of the Antonov Design Bureau, and Ivchenko, general manager of the Sich Engine Company.

"Your Excellency, Mr. Pavel, Mr. Viktor, Mr. Ivchenko, please be seated." Lin Hongfei invited the three of them to sit down and asked, "How many people, what do you want to drink?" ”

"Juice bar." The four of them glanced at each other, and Yatzco said, it's not early, Ukrainians don't like to drink tea, and they don't have to sleep tonight to drink coffee at this time.

"Okay, then juice." Lin Hongfei nodded.

The current Guqi Provincial Industrial Manufacturing Co., Ltd. and the Ukrainian aviation industry are undoubtedly in the honeymoon period, especially between the Guqi Provincial Industrial Manufacturing Co., Ltd. and the Zaporosh Progressive Machine Manufacturing Bureau, with the relationship between the two sides now cooperating in the D-36 engine, and there is no need for too many greetings, waiting for the exclusive waiter of the suite to bring the juice, after a few simple greetings, Wulin Hongfei said, "Everyone, there are no outsiders now, we are all partners, what to say but it doesn't matter." ”

Lin Hongfei's attitude is exactly what the Ukrainians want to see, Yatz can hear this, and immediately put down the cup, "Mr. Lin, that's the case, we hope to establish a further cooperative relationship with your company." ”

In the cooperation with Guqi Provincial Industrial Manufacturing Co., Ltd., the Ukrainians, who have lived an extremely hard time during this time, feel what is called a "local tyrant": Nima! These Chinese are so rich!

What Lin Hongfei didn't know was that the young men sent by the company to Ukraine had become the target of Ukrainian socialites: young and rich, stable jobs, and not yet married, they were simply the most ideal candidates for marriage in the minds of girls.

"How?" Lin Hongfei raised his eyebrows. "Isn't our cooperation deep enough now?"

"Uh......" Yatske chuckled dryly, he certainly couldn't say that the cooperation between the two sides was not deep enough, "I mean, our cooperation can go a little deeper. ”

"For example?"

"The Progressive Machinery Manufacturing Bureau is willing to take out the AI-22 turbofan engine to cooperate with your company, and the main manufacturer of the AI-22, the Citch Engine Company, is also willing to cooperate with your company in the production of the AI-22." Yats said, giving Pavel a look.

"That's right, after learning that the central government of your country intends to hand over to your company the two aircraft manufacturing enterprises Xifei and Bingfei under your AVIC, our Progress Machinery Manufacturing Bureau has conducted research on the products of your Xifei Company, especially the Yun-7-200A aircraft that your company has high hopes for." As the deputy general designer of the Zaporosh Progressive Machine-Building Bureau, Pavel was more of an intellectual, well, he was an intellectual, pushed down his glasses. "After getting to know Mr. Victor. After a careful analysis. We believe that your Y-7-200A has great potential to be converted into a jet regional passenger/cargo transport aircraft. ”

Yun-7, the prototype is the AN-24 regional transport aircraft of the Antonov Design Bureau, and naturally the Antonov Design Bureau has more say in the transformation of the Yun-7.

"What?!" Rao is Lin Hongfei has already thought that this time the Ukrainians will definitely come up with some hard goods, but he still didn't expect the goods taken out by the Ukrainians to be so crazy: transform the Yun-7, which could only fly at low speed, into a jet regional transport aircraft suitable for high-speed flight? Boss Lin was shocked. Knot was shocked, Nima was a crazy idea.

"Yes, from a technical point of view, it's not that difficult. We had done relevant research and calculations in the 80s," Victor pushed his glasses and said, "The AN-24 transport aircraft, that is, your Y-7, its fuselage, vertical tail and flat tail are very suitable for high-speed flight of more than 750 km/h...... Of course, it is also possible not to change it, but this kind of flat wing, which is more suitable for low-speed flight, is not suitable for high-speed flight conditions, and the drag is greater when flying at high speeds, which is not cost-effective from the perspective of economy. ”

"Really?" You only need to change a pair of wings suitable for high-speed flight, and you can immediately change shotguns, grass chickens fly on branches and become phoenixes? Lin Hongfei's breathing suddenly became rapid: If this is really the case......

"Yes, we have made detailed calculations, although some targeted minor adjustments still need to be made in some places, but the workload is not large," Victor nodded, said, "After replacing the wings that are more suitable for high-speed flight, the 4000 kg thrust class AI-22 engine is very suitable for installation on your company's jet version of the Y-7-200A, we think that your company can develop two aircraft on the basis of the same fuselage, positioned in the low-end, using turboprop engine Y-7- The 200A and the new models with turbofan engines are positioned at the top end to meet the needs of different customers. ”

It was a crazy idea to develop two airplanes on the basis of one fuselage, one jet and one turboprop, but it must be admitted that Lin Hongfei was attracted to this idea.

Yunqi is a 50-seat to 60-seat regional aircraft, positioning and positioning in the small trunk / large branch line of the North County 100 is different, even if the two aircraft are positioned in the regional aircraft, in the market segment will not conflict, and it is easier to enter the rapid outbreak of the international regional aircraft transport market, in Lin Hongfei's memory, whether it is Bombardier just delivered last year CRJ100 or Embraer's future home model ERJ145, are positioned in the 50-seat range.

Other people's successful experience to learn from, since Bombardier and Embraer have proved this, Lin Hongfei naturally has no reason to reject, before just considering that it is too troublesome to study a 50-seat regional jet from scratch, and the efficiency and cost ratio is not high, but if it can be modified with Yun-7, this is a very good idea...... As for the question of how to obtain evidence, there is always a way.

The matter is big, Lin Hongfei pondered for a long time. "Is it really possible?" ”

"It is indeed possible," Victor nodded affirmatively, "and we have calculated that the wing designed by the Antonov Design Bureau for the AN-148 regional jet can be applied to the Y-7 with a few minor modifications." ”

“AN—148？” Lin Hongfei frowned and thought for a long time, before he finally remembered an unfinished semi-finished aircraft he saw when he visited the Antonov Design Bureau: shoulder-mounted upper wing, two turbofan engines under the wing, and a conventional aerodynamic layout, which is completely different from the shape of today's jet regional aircraft, but it has a very light military transport aircraft flavor. I can't help but say, "The wing shape of the AN-148 is not advanced enough, right?" If I'm not mistaken. Should it still be a conventional 23-degree swept wing similar to the AN-225 and AN-124? I personally prefer the more aerodynamically efficient supercritical wing with winglets. ”

The people of the Antonov Design Bureau also have people who work in the North County 100 project team, and it is natural to know that Lin Hongfei has a soft spot for the overall wing shape of the supercritical airfoil with winglets, but for the Antonov Design Bureau and the Ukrainian aviation community, let alone a supercritical wing with winglets, as long as Lin Hongfei gives money. They can agree to any conditions, without waiting for Victor to speak. Yatzko immediately snapped. "No problem, absolutely no problem, we can also help your company develop supercritical wings with winglets, but there is a small condition."

"The condition is that I hope that our company can jointly develop the AI-22 engine with your Ukraine?" Lin Hongfei wanted to laugh when he heard it.

When the Ukrainians mentioned the AI-22 engine just now, he roughly guessed what the idea of these Ukrainians came to him, and last year, Lin Hongfei proposed to Ukraine to cooperate in the research and development of the AI-22 small-thrust and large-bypass turbofan engine, but the Ukrainian government refused at that time. It's completely like the emperor's daughter is not worried about getting married, but I didn't expect that now the Ukrainians are so excited again, this is really ...... Nima! Why did you know in the first place today?

Where does Lin Hongfei know the plight of the Ukrainians?

In terms of technical level alone, the AI-22, which was only designed at the end of the Soviet Union, is indeed a very good turbofan engine with small thrust and large bypass ratio. The reason is simple: this engine was defined at the beginning of its design as the engine of choice for long-range business jets used by high-ranking members of the CPSU, and secondarily on small regional aircraft.

As an engine used by long-range business jets used by important members of the Soviet party and government departments, it naturally put forward higher requirements for the performance of this engine.

In fact, this is also the case, because of its large bypass ratio design, AI-22 can ensure that it can output a maximum of 4000 kg of emergency thrust at the same time, but also has a very good economy and maintainability, its fuel efficiency, noise level and maintainability are basically even similar engines in Europe and the United States, but the sad Ukrainians have obviously forgotten that now it is not the Soviet Union, but Ukraine.

Before their AI-22, Europe and the United States already had several small-thrust aero engines, whether it was the TFE731 of United Signal, the AE3007 of Allison or the CF34-3 of General Electric, all of which were very good small-thrust aviation turbofan engines.

As of the first half of this year, Ukrainians are still naïve in Europe and the United States to find partners for their AI-22 engines, but the ideal is very full, but the reality is very skinny, and the Ukrainians who are full of confidence and want to lay a piece of the world in Europe and the United States have run into a lot of money in Europe and the United States, and they have to return to Ukraine in the last gloom.

By this time, the Ukrainians finally came to their senses, and they finally realized that with the exception of the Republic and Lin Hongfei's Guqi Provincial Industrial Manufacturing Co., Ltd., it was simply impossible for their AI-22 to find customers, no matter how good their engines were.

Lin Hongfei didn't know that the Ukrainians were in Europe and the United States, but he knew that if there was no way to sell his underwear for money, the Ukrainians would never take the initiative to find their heads.

"No, no, no, not a joint development, we mean that the Zaporosh Progressive Machine-Building Bureau and the Cic Engine Company will supply the engine ...... for your company"

Before Yatsk's words fell, Lin Hongfei's face suddenly sank, "Mr. Yatsk, are you kidding?" ”

"Ah......" Yatske blinked, a little confused, he didn't understand, why suddenly Lin Hongfei changed his face: This shouldn't be.

"Our country's regional passenger transport is not yet mature, even if the turboprop-powered Yun-7-200A is transformed into a jet regional aircraft, the positioning should be mainly in Europe and the United States, since it is mainly in Europe and the United States, then please tell me, why do I put a ready-made CF34-3C and use your AI-22?"

"Mr. Yatzko, don't you know that if I use GE's CF34-3C, it is easier for my aircraft to obtain an FAA airworthiness certificate? Since it is also the purchase of engines, why should I use your AI-22 instead of the CF34-3C, which is easier to obtain? Don't tell me because you guys can help me redesign the wings, I'm sure my North County 100 project team can do the job too. ”

Yatske opened his mouth, but he was speechless, because what Lin Hongfei said was indeed the truth.

From his own point of view and that of Ukraine, of course, they hope that Lin Hongfei will use Ukrainian engines and cooperate with Ukraine in wing design, but from Lin Hongfei's point of view, in order to enter the global regional aircraft passenger market, of course, it is better to use the engines of American companies to obtain the FAA airworthiness certificate...... Or Ukraine's AI-22 will be cheaper than GE's CF34-3C, but if there is no way to obtain an airworthiness certificate and cannot enter this market, what is the use of being cheaper?

"That ......" Pavel was a little anxious, glanced at Yatsk inquiringly, and saw that Yatsk had no intention of objecting, and almost couldn't wait, "Mr. Lin, we are more sincere than the Americans, didn't you plan to buy the AI-22 engine technology before?" What we mean by this is that we can maybe develop this engine together, and we can also work together on this engine for further development. (To be continued......)