"Reducer?"

Hearing Wang Dazhi mention the helicopter's reducer, Viktor Vladimirovich Kayapa smiled directly, he finally had an achievement worth showing off, he pointed at himself and asked Wang Dazhi: "Wang, do you know what my most proud work is in the Miri Design Bureau?"

"What?"

Wang Dazhi looked confused: as far as he knew, when he was in the Miri Design Bureau, it seems that Viktor Vladimirovich Kayapa did not personally preside over any helicopter research and development projects.

"It's the VR-26 final drive!"

Viktor Vladimirovich Kayapa looked proud.

It's a pity that his flattering eyes were thrown to the blind man, and Wang Dazhi was a little confused: "VR-26 main reducer?

"You don't even know about the VR-26?" Viktor Vladimirovich Kayapa felt his mentality a little broken: "You always know about the Mi-26, right?"

"Of course I know about the Mi-26," Wang Dazhi nodded again and again: "The heavy helicopter with the largest take-off weight and payload in the world......

Speaking of this, Wang Dazhi was suddenly stunned, he looked at Viktor Vladimirovich Kayapa, and said in disbelief: "Don't you tell me that VR-26 is the Mi-26's final reducer?!"

"That's right, the VR-26 is the main reducer of the Mi-26!"

Viktor Vladimirovich Kayapa, who had finally succeeded in pretending to be X, had a bit of smugness on his face, and almost said directly: Look! Lao Tzu is amazing, right? Why don't you hurry up and pat Lao Tzu's ass?

“......”

Wang Dazhi looked at Viktor Vladimirovich Kayapa, and he couldn't say anything in shock: this guy in front of him turned out to be the designer of the main reducer of the Mi-26 heavy helicopter?!

Are you kidding?!

Hurriedly shook his head, Wang Dazhi said: "If I remember correctly, the final reducer used by your Miri Design Bureau is provided by the engine manufacturing unit and the engine simultaneously." ”

The Ivchenko Design Bureau and the Klimov Design Bureau did not provide the Miri Design Bureau with a turboshaft engine "single machine", but directly provided a set of "power packages" composed of a turboshaft engine, a final reducer and a tail rotor reducer, whether it was a Mi-8/17 transport helicopter, a Mi-24 armed helicopter or a Mi-28 that was being tested again, but the main reducer of the Mi-26 heavy helicopter was actually designed and manufactured by the Miri Design Bureau itself?!

Although he knew that Viktor Vladimirovich Kayapa could not talk nonsense about this kind of thing, Wang Dazhi still couldn't believe it, you know, but in terms of technical content, the technical content of the helicopter final drive is actually higher than the engine, if you make an analogy, it is similar to the relationship between a car engine and an automatic transmission, and the manufacturing of a car engine is difficult enough, right? But now our country's first-line national automobile enterprises have the ability to produce their own engines, and the overall performance and level are not much different from those of the same displacement engines in Europe and the United States......

In the AT automatic gearbox, our country is at a level that has just broken through for a long time, whether it is Dong'an's 6AT or Shengrui's 8AT, the installed capacity is not very large, Dong'an's 6AT, which belongs to Chang'an Group, even Chang'an itself is "reluctant" to use, Shengrui's 8AT is only Sway, In the field of DCT dual-clutch transmissions, although many automobile companies are now able to produce their own dual-clutch transmissions, the core dual-clutch modules and control modules are basically provided by BorgWarner......

In addition, the hardware has been made, but in the software, that is, the tuning and matching of the control software, there is still a big gap between our domestic automatic transmission companies and ZF and Aisin Seiki in this area.

Of course, compared with five years ago or even 10 years ago, the progress is still huge, the national automobile enterprises are indeed developing rapidly step by step, which is also a fact, the road always has to go step by step, and the meal always has to be eaten one bite at a time.

And if you look back at the VR-26 final drive on the Mi-26 heavy helicopter, because there are strict weight restrictions, the weight of this main drive can not exceed 3800 kg, and to be able to accept the input of two D-136 turboshaft engines with a maximum of 11000 shaft horsepower, the most important thing is to achieve a reduction ratio of 62.5:1, and the power take-off shaft of the D-136 turboshaft engine is as high as 8294 rpm/ The speed is reduced to 132.7 rpm after deceleration.

This requirement is simply outrageous, but this reducer has done it and controlled the weight at 3640 kg.

For the current COMAC Group, the VR-26 final reducer with a rated power of 22,000 shaft horsepower on the Mi-26 is equivalent to today's 1995, when even the Mercedes-Benz S was only equipped with 5AT, the Soviets had "snapped" the 10AT in front of the world's eyes, and proved that the 10AT was super easy to use with actual performance......

That's it!

For the COMAC Group, which can't even build a "3AT", the chief designer of the "10AT" is in front of his eyes and is his own person.

Do you think this thing is mysterious?

Therefore, Wang Dazhi's disbelief and incomprehension are also understandable.

Facing Wang Dazhi's skeptical eyes, Viktor Vladimirovich Kayapa, who was waiting for praise and praise, was a little unhappy, but he also knew the truth of what his general manager said, and nodded and said, "You are right, the main reducer and tail rotor reducer used in helicopters such as Mi-8, Mi-17 and Mi-24 are indeed provided by the engine unit together as a "power package" According to the tradition, when the Yvchenko Design Bureau provided the D-136 turboshaft engine to our Miri Design Bureau, they also had to provide the matching reducer, but Mr. Lotarev, the chief designer of the D-136 turboshaft engine, refused to design the matching reducer for us, he believed that the reducer was too large, and there were many problems that were difficult to solve, even if the design was successful, it would be oversized and overweight, and it was difficult to guarantee success. ”

Listening to Viktor Vladimirovich Kayapa, Wang Dazhi understood a little, and he said respectfully: "So your teacher, Mr. Tishenko, handed over the task of developing the VR-26 final reducer to you?"

"Yes," said Viktor Vladimirovich Kayapa, with a proud look on his face: "This is the trust that the teacher has placed in me, and I have not disappointed the teacher." ”

Wang Dazhi stopped talking, and while he was annoyed that he didn't know that Viktor Vladimirovich Kayapa was the designer of the main reducer of the Mi-26 heavy helicopter, he was more glad: Chairman, Chairman, what level of baby bump have you made for us, this is the world's top heavy helicopter final reducer design expert!