581 Helicopter Folding Wing (2/5 for Driden)
As the bigwigs said above, the Ninth Academy has involved too many projects, and they were originally only a small number of reserve talents, even if they have been abducted and deceived from other units in the past few days, it is not enough.
Especially in China, due to the ten-year turmoil in talent training, all units are generally short of people, and it is not easy.
Now if he wants to ask for someone from Liu Yijiu, or the big aircraft project that he has been eyeing for a long time, it is strange that Sun Daoqian can get someone.
"Director Sun, forget it. How many years has we been short of people here, can you get someone from Director Liu? This is simply impossible, he didn't make up his mind to get people from you Qin Fei, it's already good......" Wang Kai said with a wry smile.
"But ......"
"There's nothing to be had. If you go to inquire about it, you will know that although our Director Liu is young, he has a great reputation, and the entire military industrial system, if it were not for the 541 base and finally became a subordinate unit of the Ninth Academy, it is estimated that they will get all the talents away, and other units have been borrowed by the Ninth Academy. Wang Kai interrupted Sun Daoqian's words, "If you really want to blame anyone, you can only blame yourself, Chief Long has reminded your ......"
"How did I know that he had his eye on the Yun 10 project? At the beginning, when we knew that the Yun-10 project was going to stop and transfer the funds to the radar of the Air Force, we were ready to ask all of Ma Fengshan's team to come over...... "Sun Daoqian is now crying without tears.
He didn't expect that Liu Yijiu would start faster than them.
In '79, he was already eyeing the Yun 10 project. At that time, there was inside information, and the Turbofan Six team was accepted by him first. Otherwise, why do we dare to say that the 611 Institute will provide you with engines now? Wang Kai shook his head. Director Liu was in a very bad mood during this time. Yesterday morning, when I had an on-site meeting, I scolded Mr. Wu......"
Sun Daoqian was dumbfounded.
Wu Tianhai is the chief engineer of the 611 Institute!
The big guys above are all extremely precious, Liu Yijiu actually scolded him, is it because he has a grumpy father-in-law?
If so......
Thinking of this, Sun Daoqian's eyes couldn't help but glow.
"You better forget it, Lao Wu can't go with you. Although Liu Yijiu is young and should not scold Lao Wu, from a technical point of view, Lao Wu's thinking is a little conservative. Our Ninth Academy is not like you, the logistics department has spoken. The talent is selected by you, and we don't have extra funds to invest in problems that don't have much prospects. Lao Wu is the chief engineer, and Liu Yijiu, a young man, is the chief designer......"
Wang Kai's words made Sun Daoqian pay attention to it.
Liu Yijiu is so young that he can serve as the chief designer?
Thinking about it, it is clear that he can control such a large base, and the people below are willing to be scolded, you can imagine how high Liu Yijiu's attainments in technology are.
Otherwise. When a technician like Wu Tianhai is scolded in front of a group of bigwigs, he will directly throw off his arms and leave, leaving the stall behind. Liu Yijiu will clean it up by himself.
Sun Daoqian is a technologist and knows the temper of a tech-savvy person. None of them are convinced, and they don't think about any administrative level at all. It doesn't matter if it's a big guy or not, or how high his status is. If you don't know how to do it, it's hard to get them to obey.
Liu Yijiu didn't care about Sun Daoqian's desire to poach the chief engineer of his fighter team. After finalizing the new performance standards of the fighters, regardless of the Soviets, who had not yet brought the money, they rushed back to the base in a hurry.
During this time, it was delayed outside for a long time, and I don't know what happened to the helicopter accident inside the base.
So, he hurried back to the base and waited until the matter was taken care of before negotiating with the Soviets.
He didn't bother to care about the reaction of the Soviets.
As for the needs of the Iranians, Liu Yijiu directly threw them to Cao Yuan, the newly established China Precision Machinery Import and Export Trading Company, to deal with them. Cao Yuan and they can do these things, he is naturally happy.
Anyway, if you earn more or less, it's all for the state, and he can't enjoy any money personally, so he can share some profits and have a lot less trouble, which is something that can't be sought.
"Director Liu, you can come back, now we have been looking for a long time, during this time everyone has not rested, from the beginning of the inventory of raw materials, did not find any problems, the operation of the workers, is also strictly in accordance with the process regulations, but now you can't find the problem...... "When the helicopter stopped in front of the first district for staff activities and the square where movies are usually played, Wang Yueshan, director of the first district, and others are waiting for his arrival here.
It's like seeing the backbone of the Lord.
Liu Yijiu is responsible for a lot of design work for the Z-91 project, especially the overall design, and the other sub-projects, and then send them down. Liao Zhuojing was very disdainful of Liu Yijiu's forcible intervention at first, but in the previous test process, he found that the aerodynamic layout and overall layout of the helicopter designed by Liu Yijiu were not too problematic, and many of them could not be achieved because of the difference in processing capacity and had to be adjusted in detail.
The helicopter static pressure test and wind tunnel test have shown very good performance.
Unexpectedly, the first Z-91-04 aircraft used for test flights, during the test flight, just flew up and fell down directly.
At that time, the test flight was in a place with few people, and it did not carry too much fuel, and the plane fell and did not break.
"Is there a problem with the pilot's operation?" Liu Yijiu asked with a frown as he walked briskly to the assembly workshop in District 1.
But he kept thinking back to the time when he designed it, and those places would make the helicopter problematic.
"I asked many times, it turned out that the test pilot of our Z-7 aircraft is very experienced, and when maneuvering, there is no problem, and the various alarm indicators in front of it do not ......show any problems," Liao Zhuojing also said with a sad face.
It's actually very normal for such a thing to happen.
After all, their helicopters, from design to test flight, took too little time. If there is a problem, just find out the problem and correct it.
But what makes them collapse is that they can't find the problem at all!
"There is no such strange thing, if there is no abnormality, the plane cannot just fall like this, there is no problem with the propeller? Is it cracking? The paddle hub is not broken? The engine has not been suspended? Liu Yijiu asked a series of questions.
Liao Zhuojing and the others all shook their heads and said that there was no problem.
Liu Yijiu was also at a loss, "If you fall down, it will definitely be reflected on the propeller first, and only when it is reflected on the propeller, it will fall down directly......"
If the propeller keeps rotating, as long as the hub and the shaft are not broken, so that the connection between the propeller and the aircraft body is not broken, then the helicopter will not be able to fall.
The helicopter is inherently provided lift by the tremendous force of the propeller rotation, while the small propeller that rotates at the tail provides the torque to control the direction of the aircraft......
Now they tell Liu Yijiu that the helicopter did not appear in any abnormality and fell like this, who can believe it?
There must be something wrong.
"I want to see the test pilot. Someone sent him to inform him to go to the wreckage of the helicopter...... "When I got to the test workshop, I checked the black box and found that all kinds of data recorded in it were normal, and Liu Yijiu felt even more weird."
He wouldn't believe that there was no problem at all!
There are no problems, the helicopter will not fall!
The wreckage of the helicopter has been on the hillside next to Area 1, just because the problem was not found, and this side is also relatively secret, so they did not move until Liu Yijiu came back.
Even Liao Zhuojing and others didn't find the problem, let alone others, so they could only hope that Liu Yijiu would be able to find out the problem after he came back.
The design of the Z-91 aircraft adopts a lot of technology of the Mi-24 Hind, Liu Yijiu has improved this, and the shape is much larger than the Mi-24, especially the tail pulp at the back, which is directly a new design, and the rudder is wrapped in the middle of the tail oblique beam......
Of course, the entire shape design is actually an enlarged version of the Mi-24, and there are differences in the details, and if you don't look at it carefully, you really can't see it.
The biggest difference is that the propeller of the Z-91 does not use a single suspense system like the Mi-24, but an articulated twin rotor like a heavy helicopter to provide more lift.
So, the wreckage of the helicopter on the ground, it looks huge.
"Tell me about the process you have taken off from the beginning to the present, especially the detailed process, the changes in data anywhere, or the subtle differences in your feelings when you are operating!" To the test pilot Huang Pingyang who arrived here, Liu Yijiu asked calmly.
In the face of the young chief designer, Huang Pingyang was not impatient, although he said all the details many times.
He knew that this was something that had cost tens of millions of dollars to research, especially the materials and other things on this helicopter, and even the skin of the shell, which was the most advanced thing in the base.
It can't be measured in terms of money.
If you can't find a reason, this project will basically be scrapped!
“…… When I flew to 20 meters, the plane trembled slightly, checked all the instruments, and did not see the alarm, and the speed of the propeller did not change, I thought it was my unsteady hand......" Huang Pingyang repeated again that he didn't even have to think.
As a test pilot, he knew that any anomaly could be a problem.
Anything that is not careful can waste a lot of manpower and material resources......
"Stop, this is it! After that, how many seconds did the helicopter fall? Liu Yijiu interrupted Huang Pingyang's words. (To be continued.) )
PS: The fourth shift is coming......