"Seven years?" Chen Geng frowned, for such a long time, the facelift of the two NK-8 is enough. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 Info looked at Andrei Shamanov with a smile: "It's just a small turbofan engine, it takes so long?" ”

"No, no, no, Chen, it's not what you think," Seeing that Chen Geng seemed a little dissatisfied, Andrei Shamanov explained to Chen Geng: "Although what you want is a small engine, but in terms of technical content, research and development process and overall difficulty, a small turbofan engine is not simpler than a large turbofan engine with a thrust of 5000 kg or even 10 tons...... It's a bit like the difference between a gasoline engine for a motorcycle and a gasoline engine for a car. ”

In order to reduce its weight and size as much as possible, the small gasoline engine used for motorcycles not only tried every way to reduce weight, but even chose to mix oil and gas outside the engine, and the air inhaled into the engine cylinder is a mixture of mixed air and gasoline;

In order to reduce weight as much as possible, the gasoline engine for motorcycles has higher requirements for the strength of parts than the gasoline engine of ordinary cars;

In order to reduce weight and volume, the gasoline engine for motorcycles has even integrated the engine and gearbox.

The result is a standard 4-cylinder motorcycle with a displacement of 1000cc (mainly street cars and sports cars), and its powertrain with integrated gearbox basically weighs no more than 120 kg, while the engine and transmission assembly of a mini car of the same displacement weigh much? It will not be less than 350 kg.

What does it mean that a gasoline engine for a motorcycle has a higher power and torque output when it weighs only one-third of the same displacement of a car's powertrain? This means that the difficulty of R&D and manufacturing of downsized powertrains for motorcycles is several steps higher than that of ordinary gasoline engines!

This is also a few years later, when the OEMs of our automobile industry have been able to produce 2.0L and 2.4L gasoline engines with mainstream performance, why is there only one independent 600CC motorcycle side-by-side four-cylinder gasoline engine in a huge country.

Of course, in addition to the technical difficulty is higher than that of ordinary gasoline engines, there are also many reasons in other aspects, such as market size, the ability to share costs equally, etc., I will not list them one by one here, Andrei Shamanov used this as an example and it is really very confusing, if it is not very familiar with aero engines, people are really fooled by him, but where is Chen Geng so easy to fool?

He said honestly and politely: "Andrey, as a friend, I will only say some things, how long did it take to develop the F107-WR series turbofan engine on the Americans' Tomahawk cruise missiles?" How long did it take the USSR to develop a small turbofan engine of the same type?

Bigger, how long did it take for Allison to GMA3007A (renamed AE3007 after being acquired by Royce & Co.)? How long did Pratt Whitney Canada's PW300 series turbofan engines last? Have a more than 5-year-old no? ”

Andrei Shamanov's face instantly turned into a red cloth, and he didn't dare to answer.

The engines mentioned by Chen Geng are all small-thrust turbofan engines, except for the F107-WR series engines used for Tomahawk cruise missiles that lasted more than 7 years because of the suspension halfway, none of the others lasted more than 5 years, and the PW300 series of Pratt Whitney Canada even took more than 3 years to complete the design finalization, even if the time for airworthiness certification is only barely 6 years.

Now, in the face of an engine with a design life of no more than 40 hours and does not require the airworthiness certification of any country's civil aviation agency, you say it will take seven years? Isn't this fooling people for fools?

Andrei Shamanov didn't fool Chen Geng for a fool, he just had his own careful thoughts: if the research and development progress was delayed for two years, the Kuznetsov Design Bureau would have been able to get two more years of money, wouldn't it?

Chen Geng sighed, and simply said it to the point: "I understand what you mean, it's nothing more than worrying that after completing the task too quickly, there will be no work in the next place - the current situation in the Soviet Union is very bad, maybe the future will be even worse, you always have to make some plans for the future." ”

Andrei Shamanov did not speak, which was considered a tacit acquiescence.

"I always thought we were friends," Chen Geng sighed, his expression disappointed: "The two major facelifts of the NK-8, NK-44 and NK-56, are a total of four engines, and these four projects mean that the Kuznetsov Design Bureau can get no less than 15 million US dollars a year from Runhua Industry......

He's disappointed, really disappointed, I treat you as a friend, and you're so trying to trick me?!

But hearing Chen Geng's words, Andrei Shamanov, who had been feeling guilty just now, suddenly became excited: "But we didn't get a penny!" ”

Didn't get a penny? Chen Geng frowned, not quite convinced: even if the Central Committee of the CPSU wants to take away all the money, it will not be without any compensation, right? The previously signed agreement clearly stipulated that after Runhua Industrial paid the relevant expenses to the Soviet Union, the Soviet Central Committee would transfer the money in the form of rubles to the Kuznetsov Design Bureau.

"I'm not lying, it's true," Seeing Chen Geng's skeptical eyes, Andrei Shamanov became more and more excited, and said loudly: "We haven't received a penny of financial allocation in the past three months, and what we have learned is that every time you transfer a fund, the central government directly transfers it, and not a penny goes to the Kuznetsov Design Bureau's account!" ”

Hey!

It's not impossible!

Listening to Andrei Shamanov's words, Chen Geng realized what a strange historical period the current Soviet Union is in: if it was in any other country, or any other historical stage of the Soviet Union, Chen Geng would not believe this, but it is the early autumn of 1991, the Soviet Union has reached the last moment, now, no one thinks about how to develop the economy and people's livelihood, and has realized that the Soviet Union is about to be the Soviet high-level people, and everyone is desperately trying to benefit themselves. It is not at all surprising that the funds paid by Runhua Industrial to the Kuznetsov Design Bureau were misappropriated.

I am afraid that it is precisely because of this that Andrei Shamanov is so interested in and ...... this research and development proposal put forward by Chen Gengxin Don't you want to eat?

"If so...... I don't like what you're doing, but there's a good reason for that. After a long time, Chen Geng finally spoke.

"What?!" Andrei Shamanov raised his head suddenly, looked at Chen Geng in disbelief, and thought that he had misheard: Chen Geng was willing to forgive himself?

In any case, he was unreasonable in this matter, just now, he thought that Chen Geng was going to cancel the cooperation with the Kuznetsov Design Bureau, he couldn't believe that after Chen Geng knew about his little plan, he was willing to help the Kuznetsov Design Bureau.

Chen Geng didn't speak, he paced a few steps in the room with his hands behind his back, and after a while, he finally raised his head, looked at Andrei Shamanov and said in a deep voice: "Call all the people in the design bureau who have the final say, I want to discuss something with everyone!" ”

…………………………………………

In the face of his big benefactor, the Kuznetsov Design Bureau, which is poor and has a problem to eat, has a reaction speed that is simply faster than a rabbit with an arrow, and in the face of a room of old hairy people with green eyes like wolves, Chen Geng did not greet him, did not be polite, and entered the topic directly: "I believe you already know what I am going to do from Andrey, that's right, I want to develop a small thrust turbofan engine, and this project is a cooperation project between our two companies, I hope that no third party will be involved- That's what everyone thinks, right? ”

No one spoke, everyone looked at Chen Geng with embarrassed eyes, and everyone's faces were excited and expectant.

Chen Geng: "But I thought about it for a while, and I felt that with the technical strength of the Kuznetsov Design Bureau, it would be too wasteful to develop only one engine, so I temporarily decided to adjust the target......

What the? Hearing Chen Geng's words, a room full of old hairymen suddenly became excited: Could it be that Chen Geng wants to increase the weight?

If it's true, that's great, but ...... Is it possible?

did not disappoint the old Maozi, Chen Geng raised two fingers, Chen Geng said unabashedly: "The first one, that is, this small turbofan engine with a thrust of 450 kg to 500 kg, I hope you will make this engine into a series of engines under the same core machine, at least 5 models, the thrust range covers from 260 kg to 500 kg, and the life span shall not be less than 300 hours, Cruising fuel consumption at an altitude of 9,000 meters cannot exceed 0.65 kg, the dead weight of a model with a thrust of 500 kg cannot exceed 100 kg, it cannot exceed 5 years from design to finalization, and the research and development process must be highly confidential, is there a problem? ”

With the same core machine, the thrust range from 260 kg all the way up to 500 kg?

Thrust-to-weight ratio of at least 5?

5 years of R&D?

Can't leak it yet?

Andrei Shamanov, on behalf of the entire leadership of the Kuznetsov Design Bureau, asked a question that they were most concerned about: "None of this is a problem, but what do we get?" ”

Chen Geng said without hesitation: "In addition to the previous conditions, each of you can get 50,000 US dollars a year." ”

Rapid breathing rang out in the huge conference room.

Instead, a question was asked: "But...... How can you keep it completely confidential? ”