Rebirth of Military Workers

Chapter 788

“Yunshi’s wide-body aircraft model can be regarded as a new derivative model, with a maximum take-off weight of 150 tons. First, it will be a military-civilian model…” Ma Fengshan introduced the new design of Yunshi.

“Under such a situation, it is no longer a transport ten, right?” After Long Yaohua listened to the introduction, compared with the performance indicators required by the military, it is still a bit worse, but the new model has a lot of improvement in technical performance. .

“It can be said that it is not considered to be a transport ten, because of this type of aircraft, we have changed to a single wing to prepare for the upper single wing. In the design of large domestic transport aircraft, experience is lacking and lack of experience, and we are now supplementing various deficiencies …” Ma Fengshan said.

Li Mingshan looked at them, “The single-wing design is not used in civil aviation?”

“It is entirely for military use. After all, a wide-body passenger aircraft…” Ma Fengshan replied, “Although it is less flexible, it has better stability. Military transport aircraft need to consider the airborne troops and equipment, and low-altitude flight performance…”

According to Ma Fengshan’s introduction, this is completely a new project.

Xie Kai clearly knows that the upper single-wing structure was also proposed before.

“Civil aviation passenger planes use this structure, the performance is very poor, especially the noise heard by passengers in the airport will be very loud, which is not conducive to market promotion.” Although Li Mingshan knows, he does not want 404 to study large aircraft only for military use. When proposing the direction of construction and development, everyone knows that it is impossible to equip large aircraft on a large scale in the short term.”

Military and civilian use is the most suitable.

At present, funding is limited. For a long time in the future, the Air Force will focus on exploratory testing of troop construction. The defense strategy of defense will reduce military expenditures to a very low level.

Specializing in large-scale military transport aircraft does not fully meet the needs of the military’s future development, which makes Li Mingshan feel a little wasteful.

Rich, no problem.

In the absence of money, this is obviously not appropriate.

On a monoplane, the engine is hoisted under the wings, parallel to the cabin, and the noise is directly transmitted into the cabin, which is not suitable for civil aviation passenger aircraft. Similarly, because the upper monoplane does not want to be as close to the ground as the lower monoplane engine, the requirements for airport runways are very high, and it is impossible to achieve field take-off and landing. It is impossible for the monoplane to parachute from the side door of the airborne troops…

Civil aviation passenger planes and military transport planes are different in terms of performance requirements.

What military transport aircraft needs to achieve is the construction of large-scale airdrop capabilities. How to deliver troops and equipment to places where they are urgently needed faster and more efficiently, regardless of the passenger experience.

Like the current Yunba, there is no airtight design in the cabin, and no air-conditioning technology. Soldiers are escorted to wear thick military coats to keep warm…

For civil aviation airliners, first consider the passenger experience.

The noise is too loud, who will spend money to buy it?

“The chief, our wide-body model is actually divided into two, one is the lower wing and the other is the upper wing. In as many cases as possible, common standardized parts are used, except for various test models before the flight In production, only the main structure and other places are different…” Cheng introduced the situation from time to time.

“Your funding?” Li Mingshan hadn’t thought about it before, and Yun Ten had developed to such a degree.

If there is a special military transport aircraft designed for the domestic air force, he is naturally happy.

“There is no problem with funding, and all expenditures are in strict accordance with the budget.” Zheng Yucheng said hurriedly, “There is absolutely no shortage of funding. At present, Yunshi is the largest project in our hands that has made the most progress.”

The attitude is obvious. The current air force equipment, especially the large aircraft, is the target of the 404’s priority development.

Li Mingshan just wanted to ask them, if the military does not purchase, how to recover the research and development funds in the future, but finally he did not ask.

He knows the answer-not at home, these guys will definitely look for buyers abroad.

Even for the order, maybe for the order of two frames, Xie Kai will go to those small countries to buy.

“Military transport aircraft are necessary, mainly for large early warning aircraft. If the lower single-wing design is adopted, the top dish-shaped radome does not conform to the aerodynamic layout…” Xie Kai said, “This is also for us to catch up with the international advanced technology. A price must be paid. Without a solid technical foundation, it is impossible to implement curve overtaking in the field of science and technology.”

Li Mingshan agrees with Xie Kai’s statement.

Now the domestic large aircraft supporting facilities are basically complete, large presses and five-axis CNC machine tools are already available.(Read more @ wuxiax.com)

The production technology of key engine parts is solved, and mass manufacturing capacity can be formed. All things, because the foundation is developed, there are more development opportunities.

“If there is a shortage of people, you can talk to me and we can help think of a solution. Of course, it is limited to the field of aircraft design…” Li Mingshan thought for a long time and said actively.

Xie Kai and Zheng Yucheng looked at each other, but they didn’t expect that the old guy would take the initiative to speak to their designers in the aviation field.

Don’t think about it, but also know that there is technical experience.

“Then the feeling is good, Chief, you are really timely rain.” An old and a young fox were happy with flowers.

“You really want to move?” Li Mingshan didn’t get an answer, and brought the topic back again.

Two foxes, one old and one young, are getting better and better at changing topics, and they are biased by them inadvertently.

“Civilian use stays, military use moves. Many places in our base are empty.” Zheng Yucheng said, “Of course, we don’t bother to build production lines or something. At that time, we will continue to cooperate with Qin Fei to produce test machines or even orders. Up.”

This can be regarded as a clear answer to Li Mingshan.

Military wide-body transport aircraft design, directly moved back to 404.

“In terms of personnel?” Li Mingshan expressed his understanding, Zheng Yucheng and the others were already very kind.

It was obviously Qin Fei’s people who were anxious to make big strides to improve their technical strength and wanted to cooperate with Lockheed. They were not kind.

“We are going to take over there from time to time to take charge of the design of large military aircraft.” Zheng Yucheng looked at Ma Fengshan when he said this.

When Cheng heard this from time to time, it was obvious that he was too accidental and he didn’t believe it for a while.

There was nothing unusual about Ma Fengshan.

Although Cheng is young from time to time, he has partnered with him for so many years, and he knows the technology of large aircraft very well.

Li Mingshan did not interfere with 404’s personnel appointment and removal. Zheng Yucheng must have given full consideration to this proposal.

The person was proposed by Xie Kai, and he was also helpless. Tang Dana, who was out of China, is still studying solid mechanics. He is still a few years away from graduating. Can’t he just dig people right now?

“Chief, are they really going to move?” Sun Daoqian and others have been waiting for news.

Once the Yunshi project is removed, their good days will come to an end.

Although the production of the Yunshi project is not much, it only produces one a year. Seeing that the model derivative design and so on are now available, whether it is prototype manufacturing or the production design of the Yunshi passenger aircraft, it is a big order. The production task will come to an end again.

On the surface, the above does not support or oppose the continued development of Yunshi, but Qin Fei has allocated a lot of funds for the upgrade of production facilities, making Qin Fei’s production line has been slowly and continuously updated and upgraded.

Yunshi moved away and reopened the production line on his own. By that time, these funds would be gone.

The production order is gone, so how can I live a good life?

“They only evacuated part of it. Civil projects stay here.” Li Mingshan briefly introduced the situation, “unless something has affected the development of Yunshi.”

This is obviously a warning to Sun Daoqian and others.

Su Xingguo smiled bitterly, “Chief, if they don’t participate, how is it possible for us to cooperate with the Americans!”

Sun Daoqian also nodded, “They won’t take the money out, even if it is a modification of a wide-body airliner and the introduction of American technology, they don’t agree.”

Li Mingshan looked at these two people and sighed.

For the military, even if the introduced technology accelerates its development, what can it do?

The army has no money. Everything now has to make way for the country’s economic development. This determines that the Air Force does not have much funding to purchase large-scale advanced equipment.

The people of 404 understood better than Sun Daoqian.

“Sometimes, military scientific research projects do not necessarily lead to results. The process is very important. In particular, the stimulus effect of the process on the entire national technological system cannot be ignored.” Li Mingshan only left such a sentence behind.

From time to time, Cheng has never wanted to understand. It stands to reason that the military aircraft project is more important. Why do you let yourself take charge of this work?

But he didn’t ask too much.

“Lao Ma, how big is the difference in performance between the military widebody and the civil aviation widebody?” After Li Mingshan left, Xie Kai and Zheng Yucheng called the core leaders of the large aircraft team together and opened. A meeting.

Mainly discuss the continuous modification of the Yun X and the launch of the military transport aircraft.

“The gap is much larger. For civilian use, only the body is widened, or even lengthened. The wing spar and the wing box traverse the entire cabin. On the one hand, it will affect the cargo transportation. Like armored vehicles and other heavy equipment, if they are installed at the center On the wing box, the center of gravity is elevated and it is impossible to fly…” Ma Fengshan thought Xie Kai knew, and while staring at Xie Kai with a surprised look, he introduced.

Xie Kai asked the purpose of this, not because he didn’t know.

Rather, I want to know how likely it is that military and civilian aircraft with different uses can be used in parts and components.

That will effectively reduce costs.

“The parts are very versatile, although the structure is somewhat different. The requirements of civil aviation passenger aircraft are higher than those of military ones. On airport runways in good conditions, the service life of higher-strength landing gears is higher, which can effectively increase the service life. The only drawback is that the production cost is higher.”

“How tall is it?”

“At least 15%.”

“That’s acceptable.” It is very cost-effective to effectively reduce military costs by just raising such a cost.

“This project can’t use Yunshi anymore, right?” Zheng Yucheng was interested in naming it again, and looked at Xie Kai hopefully, “Yunshi is 110 tons, our new model, or is it called Yun15? The 150-ton class…after the 200-ton class, it will be called Yun-20…”