Set sail1992

Chapter 1119 Start training successors
In this era, when it comes to high-speed helicopters, the first reaction of many people is the V-22 "Osprey" tilt rotor aircraft of the United States. It caused a huge shock all over the world: can helicopters still play like this?
Many people are even desperate: We don’t even have 10-ton general-purpose helicopters yet, and the Americans have already started playing with tiltrotors, so how can we catch up with them?
Now when Zhang Qihang said that he was going to make a profit-making rotorcraft, Mr. Feng was equally shocked: As far as our group can only manufacture ultra-light helicopters, are you going to make a tilting-rotor plane?
"It doesn't have to be a tilt-rotor aircraft," Zhang Qihang explained: "There are several aerodynamic layouts for high-speed helicopters, and the tilt-rotor aircraft is just one of them. My idea is that we first determine the plan and make a A small technology verification machine... The Americans have been working on the 'Osprey' for decades. I didn't expect to make this thing in a few years. My idea is that we should build a light-weight machine in the early stage. Accumulate and explore the technology of the technology verification machine, as for the future..."

Speaking of this, Zhang Qihang shook his head.

Mr. Feng understood Zhang Qihang's meaning: In a few years, Zhang Qihang will leave Huateng Industrial Group, and a new person will come up at that time, who knows what this guy will do?
After thinking about it carefully, Mr. Feng nodded and said, "If it's a technical verification machine, then it's okay... By the way, there is something I want to discuss with you."

"You say."

"I'm going to work for another year and retire to the second line at the end of next year." Speaking of this, the old man looked at Zhang Qihang and said, "You have to make some preparations. In the next year, I will take over my work. Take it up one after another."

"what?"

Unexpectedly, the old man suddenly mentioned this matter to him, and Zhang Qihang was taken aback for a moment.

Mr. Feng was very calm, and he continued: "I am already 65 this year. If the organization hadn't considered the special situation of our unit, I should have retired a long time ago, but the leader has considered the situation of our group and asked me to retire when I arrive. After the age and continued to do so for several years.

Last year, I didn’t feel that my energy was a problem, and I thought I could work for a few more years, but this year, especially in the second half of this year, I feel more and more that my energy is not good. I understand, this It's my body telling me that it's time to retire, and it's time to hand over the work to you one after another. "

"..."

Hearing what old master Feng said, Zhang Qihang became silent.

To be honest, from my personal point of view, Zhang Qihang is really reluctant. Over the years, I have cooperated very happily with the old man. I didn't feel fetters, on the contrary, the smooth development of my work over the years is inseparable from the old man's checking and making up for the gaps. Zhang Qihang is really reluctant to let the old man retire like this.

But having said that, the old man's age is on the table here. He should be retiring at an age where he should be entertaining his grandchildren at home, but he has to continue to worry about himself. From this point of view, it is somewhat inappropriate.

After a moment of silence, Zhang Qihang nodded: "If I take over as the secretary, the chairman and the secretary will shoulder the responsibility. The position of the general manager is definitely not suitable for me to take over. Who do you think is more appropriate to take over as the general manager?"

"You have the final say on this," Mr. Feng said with a smile, "If it's really not possible, you can ask the leaders what they think."

Zhang Qihang thought for a while, then nodded silently.

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"The company is going to make a tilt-rotor aircraft like the 'Osprey'?"

Hearing Zhang Qihang's words, Igor Yaroslavsky and Konstantin Antonov Qiqi's eyes widened, and they shook their heads before Zhang Qihang finished speaking: "Impossible. Don’t even think about it, our company simply doesn’t have such technical strength and relevant accumulation.”

Just now, Igor Yaroslavsky and Konstantin Antonov thought that Zhang Qihang was looking for him because of the D-30kp-4 engine. Unexpectedly, Zhang Qihang gave himself a huge surprise.

"No, no, it's not a 30-ton, mature tilt-rotor aircraft like the 'Osprey', but a technical demonstration machine for high-speed helicopters," Zhang Qihang hurriedly explained: "The overall aerodynamic structure may not be similar to that of the 'Osprey'. The tilting rotor configuration, similar to Bell Helicopter's X-2 technical demonstration machine, is also acceptable, and even other aerodynamic configurations are also acceptable...Since it is a technical demonstration machine, it is necessary to grasp how big it is and how to get it, and make a maximum take-off Little guys weighing more than 1 ton or more than 2 tons are fine, the purpose is to explore and accumulate experience."

"Is that so..."

Hearing Zhang Qihang's words, Igor Yaroslavsky and Konstantin Antonov looked at each other and said, "There are no configuration restrictions?"

"No."

"It's just a technical demonstration machine, used to explore the overall aerodynamic structure and flight control system?"

"Yes, it's just a technology verification machine."

"if it is like this……"

Igor Yaroslavsky glanced at Konstantin Antonov, frowned and said, "It seems that we can try it out?"

Konstantin Antonov nodded: "If it's just a one- or two-ton little guy, and mass production is not required, then the restrictions on materials are really not high... What about the engine?"

Zhang Qihang said: "The total output power of the Bell X-2 is 1400 horsepower, and the maximum take-off weight is 2400 kilograms. If we limit the maximum take-off weight of the aircraft to less than 2400 kilograms, two turboprop-9s are enough. The maximum take-off weight is limited to about 1 ton, and even one turboprop-9 is enough—if you think the turboprop-9 is not mature enough, you can find a way to purchase two PT6A-27 or TPE331, both of which have the maximum output power 500 class turboshaft engine."

Turboprop-9 is a "shaft-to-propeller" turboprop engine developed on the basis of turboshaft-8 turboshaft engine. The overall output power is roughly equivalent to that of turboshaft-8D.

Igor Yaroslavsky and Konstantin Antonov are no strangers to turboshaft-8 and turboprop-9. They pondered for a moment and nodded: "If it's just a technical demonstration machine, then it is indeed Is it enough... What about the specific aerodynamic shape?"

The two still felt that maybe Zhang Qihang would have some ideas.

Zhang Qihang said: "The propeller configuration of the Bell X-2 or the tilt-rotor configuration of the 'Osprey' are fine, but since it is for technical verification, I prefer the tilt-rotor configuration of the 'Osprey'. In addition, the overall rotation of the engine and propeller of the 'Osprey' has a lot of disadvantages, can it be optimized so that only the propeller rotates and the engine nacelle does not move?"

As someone who has experienced it, Zhang Qihang naturally knows that although the performance of the X-2 configuration and the SB-1 high-speed helicopter developed on the basis of this configuration in the future is not good, the US Army finally chose the V-280, which is inherited from the " The tilt-rotor configuration of the Osprey means that the tilt-rotor configuration must have advantages that other configurations cannot match. In this case, there is nothing to say, just copy the aerodynamic configuration of the V-280.

"The engine nacelle does not move, but the rotor moves?"

Igor Yaroslavsky frowned and asked Konstantin Antonov: "Konstantin, do you think it can be done?"

For the former Mi-26 main reducer designer, this question is not difficult to answer. Konstantin Antonov thought for a while and said: "If it is just a technical demonstration machine weighing one or two tons, then No problem, both materials and technology can be easily obtained, but if you want to develop a general-purpose medium-sized high-speed helicopter with a maximum take-off weight of more than 10 tons on this basis, it may be more difficult.”

For a helicopter with a weight of one or two tons, how much moment does the tilting part bear?But if the maximum take-off weight rises to 10 tons or even [-] or [-] tons, then the moment on the tilted position will be a bit scary. What material can be used to ensure the reliability and durability of this position can be said to be a question for material engineers. A huge test.

With these words from Konstantin Antonov, Zhang Qihang was relieved. He waved his hand with a smile and said, "As long as we can do it now, as for the future... we must believe that technology is constantly developing. Well, there was no demand in this direction before, and no one made efforts in this direction, but now that there is demand in this area, who can guarantee that we will not be able to produce materials and processing techniques that meet the requirements in seven or eight years or even more than 10 years?"

Hearing Zhang Qihang's words, Konstantin Antonov nodded immediately: "If this is the case, then I have no problem...By the way, what about the D-30KP-4 engine? Comrades from XAC Are you really interested in this plan?"

Igor Yaroslavsky also looked at Zhang Qihang curiously when he heard the news. Although Zhang Qihang had already told him on the phone before, what Zhang Qihang said on the phone was vague. Yaroslavsky was naturally extremely curious.

For these two top experts who have been naturalized and even selected as academicians of the Academy of Engineering, Zhang Qihang naturally has nothing to hide. He said: "If D-30KP-3 is used, it can meet the needs of carrying a new generation of main battle tanks." However, there is no way for the main battle tank to go into actual combat immediately after getting off the plane. It also needs to go through a series of preparations such as refueling and reloading. In addition, because the bypass ratio is relatively small and fuel-intensive, the voyage is not interesting;
But if it is D-30KP-4, then everything is fine. Not only is it more powerful, but it is also more fuel-efficient, which can ensure that our new generation of main battle tanks can go directly into combat after getting off the plane. "

It turned out to be like this...

Igor Yaroslavsky nodded and said: "In the past few days before you came back, everyone and I reviewed the D-30KP-4 plan again. The previous plan does have some room for optimization. In general In other words, under the premise of ensuring that the overall manufacturing cost is no more than 30% different from that of D-3KP-10, the maximum thrust of D-30KP-4 can be increased by another 3% to 5%, and the fuel consumption can be reduced by about 2%. "

"Can it improve so much?"

Zhang Qihang was a little surprised.

Don’t think that it’s not cost-effective to pay a 10% cost increase in order to improve this performance. The fact is that this is not the case at all. As a military high-thrust turbofan engine, if you only pay such a small increase in cost, you can improve it. Thrust and reduced fuel consumption mean that attack positions that were previously out of reach can now be reached. The strategic significance and deterrence of this are far beyond the 10% cost of the engine upgrade.

The most important thing is that this 10% increase in cost is only an increase for now. In the future, with the expansion of production scale and the application of various cost reduction and efficiency enhancement methods, the overall manufacturing cost will be further reduced. After the production capacity exceeds 400 units , maybe the cost of the whole machine may even be lower than D-30KP-3... After all, a Luye only needs 6 engines, while a Universiade requires 2 engines. Counting the spare engines, let alone 4, I am afraid that 400 may not be enough.

It was precisely because he understood these principles that Zhang Qihang was so surprised.

Speaking of this, Igor Yaroslavsky was also very happy. He said: "This is a relatively conservative estimate. After all, we are not a real military aviation industry sector. Some things or technologies and materials may already exist in China. , but we don’t know yet, won’t the comrades from Xifei come over to communicate with us next time, when I talk to them, maybe we can improve a little bit.”

Zhang Qihang gave a thumbs up: "It makes sense!"

With the words of Igor Yaroslavsky and Konstantin Antonov, Zhang Qihang was completely relieved.

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Zhang Qihang originally wanted to wait for the Universiade team to come and talk to the leaders about Mr. Feng Guoqing's retirement, but things backfired. A high-level seminar delayed the arrival of Liu Daxiang, Tang Changhong and others to next month. That being the case, there is no waiting.

"Master Feng wants to retire to the second line by the end of next year?"

The information revealed by Zhang Qihang surprised Chen Haiyang—he also understood why Zhang Qihang came to him to talk about this matter: Although Zhang Qihang no longer works in the provincial state-owned assets office, since it involves a major personnel appointment in a state-owned enterprise Of course, you have to communicate with yourself in advance.

"Yes," Zhang Qihang nodded, and said, "The old man said that from the second half of this year, he felt that his energy gradually failed to keep up. It will take a long time before the old man agrees to continue working until the end of next year, and then he will retreat to the second line."

"It's really impossible for the old man to step down so suddenly," Chen Haiyang agreed with the decision of old man Feng, and then said: "Then what arrangements does the old man have for the successor?"

Naturally, Zhang Qihang couldn't say, "The old man told me to take over." He nodded slightly and said, "The old man means to resolutely listen to the organization's arrangements."

(End of this chapter)