Not far from the elevator, it was a large office, the kind of big office where dozens of people worked together, and in the office, everyone was busy, busy with the design and development of the Y-30 and Y-25 transport aircraft.

At the beginning, everyone didn't notice Xie Xiaolan and Li Tianfeng, and Xie Xiaolan was obviously satisfied with Li Tianfeng, a free porter.

Xie Xiaolan said: "Here, this is my position, just put the information on my desk, thank you today!" ”

Li Tianfeng put the information on Xie Xiaolan's desk as he said, and even a beautiful Sven woman wearing big glasses next to him joked: "Xiaolan, where did you catch a free laborer, and he looks quite handsome." ”

Obviously, this beautiful woman with big glasses doesn't know Li Tianfeng either.

Xie Xiaolan smiled proudly, and that look seemed to say, who am I, I am one of the big beauties in our company, and the charm of this beauty is naturally top-notch.

Li Tianfeng prepared to leave.

At this time, a middle-aged man with a dignified face walked in, and many people next to him greeted the middle-aged man, "Hello, director!" ”

"Hello, Director Yan!"

Director Yan nodded, looked around the office, and saw that everyone was busy, so he couldn't help but nod with satisfaction, but Director Yan was immediately stunned, stunned, and even rubbed his eyes in disbelief.

No way!

I saw Li Tianfeng holding a large pile of materials and putting them on Xie Xiaolan's table, while Xie Xiaolan was talking and laughing, and she didn't seem to know Li Tianfeng.

Confirm that you are not mistaken, this is indeed Li Tianfeng, where is the half of the majesty on Director Yan's face, he walked over quickly, and said respectfully: "Mr. Li, why are you here?" ”

Li Tianfeng looked sideways. When I saw Director Yan, I seemed to have the impression that this was a deputy director of more than a dozen design offices under the aircraft design and R&D center, and his surname seemed to be Yan.

Li Tianfeng said: "You are Director Yan, I just came over, ready to take a look at the progress of the design and development of the Yun 30 and Yun 25." ”

Xie Xiaolan next to her. And the beautiful woman with big glasses just now was immediately stunned, and Xie Xiaolan even asked blankly: "Director, which Mr. Li is this?" ”

Director Yan glared at Xie Xiaolan angrily, and then said, "There are several Mr. Li in our company, and this is Mr. Li Tianfeng, the president of our Tianfeng Technology Company. ”

Oh my God!

Xie Xiaolan was completely stunned, she didn't react for a long time, she inadvertently grabbed a free labor force, and actually arrested the biggest boss of her company. I also carry the materials for myself.

Li Tianfeng smiled slightly, ignoring Xie Xiaolan, and ignoring the many design and development personnel around him who stood up with surprised or even shocked faces, Li Tianfeng said: "Director Yan, you are busy. ”

Director Yan hurriedly followed behind Li Tianfeng, politely, and very respectfully sent Li Tianfeng out of this big office, the moment he left the office. Director Yan also turned around and glared at Xie Xiaolan fiercely, as if to say. Xie Xiaolan, you're in a big trouble, see how I'll clean you up later.

When Li Tianfeng and Director Yan both left the big office, all of a sudden, the entire office exploded.

"Oh my God! This is our Mr. Li just now! ”

"Xie Xiaolan, you are too good!"

"Arrest our Mr. Li to serve as a free porter. Xie Xiaolan, I can be regarded as convinced of you! ”

“……”

Facing the colleagues who were completely frying, Xie Xiaolan was anxious and said very aggrievedly: "I, I don't know our President Li either." I knew that even if I borrowed a hundred guts, I wouldn't dare to ask Mr. Li to help me move the information! ”

I'm in a hurry!

Xie Xiaolan almost burst into tears, but a person next to her said: "Xiaolan, don't worry, our Mr. Li is approachable and won't care about this." ”

As soon as she said this, Xie Xiaolan stopped the tears that almost fell, and thought in her heart, Mr. Li really didn't have a little bit of a fight just now, just like a big brother next door.

……

Lei Yong's office.

Li Tianfeng knocked on the door and walked in, and when he saw Li Tianfeng, Lei Yong quickly got up and said, "Boss, you're here." As he spoke, Lei Yong skillfully brewed hot tea for Li Tianfeng.

Li Tianfeng said: "Mr. Lei, how is the overall structural design progress of our Y-30 transport aircraft?" ”

As a transport aircraft, the overall structural design is crucial, especially for a large transport aircraft like the Y-30 transport aircraft, which can transport 200 tons of cargo by air at one time.

Of course, it is not a big skill to be able to transport 200 tons of cargo at a time, and there are super huge transport aircraft such as the An-225 that are larger than the Yun-30 transport.

Yun 30 transport aircraft, the outstanding thing is that the warehouse is very wide, the warehouse is wide, the transportation capacity will be greatly enhanced, many big guys are loaded into the cargo compartment of the transport aircraft.

The cargo compartment is designed to be wide, it is not so simple, which involves all aspects, the cargo compartment is wide, the requirements for the overall structural strength of the aircraft are greatly strengthened, and the technical requirements are much higher.

Because of this, many transport planes do not have wide cargo compartments, and the Americans' C-5 "Galaxy" transport aircraft is a very large transport aircraft, but the maximum width of its cargo compartment is a little more than 5 meters.

The An-225 is the largest transport aircraft in the world, but its maximum width is 6.4 meters. Our Y-30 transport aircraft has a cargo compartment width of 7.8 meters, which is enough to park three large trucks side by side.

The width of the cargo compartment is 7.8 meters, which is enough to sit on the first place in the width of the cargo compartment of all transport aircraft in the world, of course, not only the width of the cargo compartment is huge, the volume of the warehouse is also very huge, more than 1000 cubic meters of volume.

The cargo compartment is so wide, so the aircraft body looks very wide from the outside, and it is inherently known as the "big fat man".

Such a wide cargo tank, coupled with the ability to carry the main battle tank, the structural strength of the cargo tank is very high, otherwise, the main battle tank of 50 or 60 tons will not be directly crushed when it enters the warehouse.

Knowing that the structural strength design of the Y-30 transport aircraft is very important, Li Tianfeng is very concerned about it, and he will inquire about the overall structural design of the Y-30 transport aircraft every three or five days.

As for the Y-25 transport aircraft, if the structural design of the Y-30 transport aircraft can be completed excellently, the structural strength design of the Y-25 transport aircraft is not a difficult task.

Of course, the Y-25 transport aircraft is also the design of a wide warehouse, with a width of nearly six meters, which can fully accommodate two large trucks parked side by side, and can transport more than a dozen large trucks at one time.

As the chief designer of the Y-30 transport aircraft, Lei Yong naturally knows the importance of its structural design, and pays attention to the structural design almost every day.

Lei Yong said: "Boss, with a large number of design sketches provided by you as a guide, the overall structural design of our Y-30 transport aircraft is progressing relatively smoothly, and the design of several key structural parts has been completed, such as the design of the main beam, partition frame, wall plate and other designs of the aircraft.

The main beam of the aircraft is known to everyone, and the partition frame, wall plate, etc., are also the main and important parts that make up the aircraft structure.

These structural parts are designed to be completed in place, plus other structural parts, these parts are combined to form the main structure of the Y-30 transport aircraft.

Coupled with the skin, installed with the avionics system, various instruments, auxiliary equipment and accessories, etc., the Y-30 is basically formed.

Lei Yong turned on his computer, there were many structural parts that had been completed in the computer, Li Tianfeng was not polite, sat down in front of the computer in person, and looked carefully.

These are the structural parts that have just completed the preliminary design in the past few days, these structural parts are basically "Hercules" materials, and only a small number of structural parts with high rigidity requirements are made of titanium alloy.

As for the aluminum alloy material commonly used in aircraft design and manufacturing, it has been rare in the design of the Y-30 transport aircraft, and has basically been replaced by "Hercules" materials and various other non-metallic composite materials.

Because the materials are basically based on "Hercules" materials, the quality of the Y-30 transport aircraft is much lighter than that of the C-5 transport aircraft and the An-225 transport aircraft, and it is also stronger and stronger.

It is precisely because of the "Hercules" materials that the cargo compartment of the Yun-30 transport aircraft can be designed so wide that it can park 3 large trucks side by side.

The Americans' C-17 Globemaster transport aircraft is one of the largest military transport aircraft with the best comprehensive performance, with a maximum load of about 77 tons, and it is also designed with a wide cargo compartment, with a width of 5.5 meters, which can accommodate two large trucks side by side in the warehouse.

The Y-30 transport aircraft, with a cargo compartment width of 7.8 meters and a maximum load of 200 tons, is about the same as the weight of the empty aircraft of the American C-17, which shows that the design of the Y-30 transport aircraft is advanced.

Li Tianfeng looked at it for a long time, and then said: "The design of these structural parts, there is basically no big problem, when the main structural design is completed, we can simulate in the computer, assemble the structural parts, and assemble the overall structure in the computer." ”

Lei Yong said: "It is estimated that in about a month, we will be able to complete the design of almost all structural parts, and we will be able to simulate and assemble them in the computer." ”

When the main structural parts are assembled in the computer, the structural design of the entire Y-30 transport aircraft can be seen.

The structural design of the Y-30 transport aircraft adopts a new design concept, coupled with the extensive use of "Hercules" materials, the whole machine is light and strong, and the cargo compartment can withstand the easy driving of dozens of tons of main battle tanks.

After reading the design of the structural parts, Li Tianfeng said: "Mr. Lei, our Y-30 transport aircraft, in addition to adopting advanced structural design, the skin of the transport aircraft is also very different from other traditional transport aircraft. ”

………

I came back late today.,Send a chapter first.,Continue to code the word...... (To be continued.) )