"Regarding the development progress of the DSI inlet channel, you also know that this kind of air inlet is a new technology, although we have invested a lot of energy in the early stage, but our development still needs almost a year."

The vice president of Northrop expressed his incomprehension that Yang Hui was still urging the development progress of the DSI air intake.

It takes two to three years to develop such a new technology, which is already a very good efficiency, after all, this technology is absolutely new field, and there has been no published reference information before.

As for Yang Hui's increase in investment in scientific research, this point is difficult for Northrop, the current Northrop can be said to be wealthy, as long as Southwest Science and Industry can keep up with the investment of the other half of the funds, everything is not a problem.

The American-style signature smile is accompanied by exaggerated facial expressions: "Of course, regarding the development of the Dsi intake, our opinion from Northrop must be that the more invested the better, this time is very precious, but when the time comes, the other half of the scientific research funds that Southwest Science and Industry will be able to keep up with the demand." ”

I never expected to be despised by Northrop, and now the Southwest Science and Technology Industry is like a poor person?

Although from an international point of view, it is still only at the stage where the problem of food and clothing has just been solved, but in China, it is definitely a well-deserved part of the unit that gets rich first.

As long as the development speed can be accelerated, Yang Hui will not have any dissatisfaction, and it is the most important thing to fully grasp the Dsi inlet as soon as possible.

"There is definitely no problem with this, we will regularly inject R&D funds into the scientific research project team every month according to the R&D fund statement. As long as it can be faster. ”

Yang Hui agreed happily, and Northrop here was also happy. The sooner we complete the development of this technology, the sooner we can deploy manpower for other projects. An extra day of delay is money!

In this way, under the unanimous decision of both parties, the development progress of the Dsi inlet channel will be accelerated again.

The development progress of the DSI inlet channel, which was listed as one of the several high-tech projects of the new project of Southwest Science and Industry in Yang Hui's heart, has accelerated again, and Yang Hui is not too worried about the development of other aspects of technology.

In view of the fact that the new J is a multi-purpose combat attack aircraft, which requires excellent low-altitude and low-speed performance, coupled with some other ideas about the future in Yang Hui's heart, the new J aerodynamic scheme of Southwest Science and Industry is the easiest to make.

As the general manager of Southwest Science and Industry, Yang Hui put forward the excellent pneumatic scheme of Jianjiao VII. It is precisely because of this advanced aerodynamics that the two guys J-74 and J-75 were brought, not to mention the later side plate technology, large side strip wing technology, etc.

Although in these technologies, except for the pneumatics of Jianjiaoqi, which is the final plan led by Yang Hui himself, the other pneumatics are all proposed by Yang Hui as the overall design plan, and finally the pneumatic design room implements them.

However, with the continuous success of these pneumatic technologies and many benefits for Southwest Science and Industry, the overall plan of the new pneumatic system is naturally outlined by Yang Hui.

"By the way, our new combat requirements for this new annihilation are similar to those of the F18. There is a great overlap in the main combat airspace, and I think the aerodynamic scheme of the new J-17 should inherit the design of the YF17. ”

Yang Hui is talking about the number of YF17 here, but everyone who understands knows that Yang Hui is talking about F18, and now there are a lot of design materials of Northrop's F18 lying in the data room of Southwest Science and Industry.

Originally. Southwest Science and Industry and Northrop are also doing this plan, that is, to strengthen the F18 again, and it is best to make a better F18A/B, C/D fighter than the F18A/B and C/D fighters currently in use in the United States.

"No, no. Not the YF17 fighter, the second development is based on the F18. Northrop not only has some rich experience in this area, but also this is in line with the current level of technology accumulation of Southwest Science and Industry. ”

Speaking of which. Northrop is definitely heart-to-heart, and he is also doing his best for this project, at least a very sincere cooperation.

Yang Hui is more open-minded, no matter what Northrop wants to say, whether it is an improvement on the basis of YF17 or a secondary development on the basis of F18, as long as it does not hinder the development of the new J, even if it is a magic change on the basis of F5, Yang Hui will follow him.

Naturally, he turned out the drawing board under the table and placed it on the table, which is the result of Yang Hui's work in the past week.

"Look, this is the aerodynamic shape of the new J that I designed, it has roughly the same aerodynamic layout as the F18, but in terms of body size, I have enlarged it on the basis of the F18. Because we need more lift and hardpoints, we can increase the wing area of the main wing by 25 percent, the flat tail area by about 35 percent, and the vertical tail area by 15 percent. ”

Hearing Yang Hui's continuous data, Northrop was also scared, is this still affordable with dual mid-push fighters?

Judging from the preliminary size here, this guy's size can't be considered a medium fighter at all, this is just a mess!

As if he had been stepped on his tail, Northrop's vice president "Teng" stood up as soon as he got down, pointing to Yang Hui's drawing board hysterically.

"Look what this thing is, 18 meters long, oh my God! Will I tell you that the F15 is also only 18.38 meters long? Your wingspan is even more outrageous at 13.5 meters, even the F15 has a wingspan of only 13.05 meters! What kind of aircraft are you designing? ”

For Yang Hui's graffiti-style design, although the person who came was only the vice president of Northrop in charge of administration, he still angrily burst out of his dissatisfaction.

Seeing the smeared stars full of drawings, Yang Hui took down the drawings quite calmly and threw them aside, anyway, this drawing is going to be scrapped, so it doesn't matter.

I smiled and waited until the clouds and rain stopped here, and then I said why I made such a design.

"Yes, if you look at the size of the fuselage alone, this is the size of a heavy fighter, but if you think about it carefully, you will realize that I am not whimsical to make such a design."

Pick up the thermos and fill the cup with water, and drink two sips to moisten your throat, it seems that this is going to be a long period of "nonsense".

"First of all, we are a low-altitude and low-speed combat attack aircraft, with a straight wing design, which would be strange if the wing length was short. In fact, the lift coefficient of the straight wing is very good, and it can be regarded as a small compensation for such a large fuselage, and it can also increase the number of anchor points under the wing by two. ”

After introducing the design of the main wing, Yang Hui didn't look at the reaction of the vice president of Northrop, and then talked about why the fuselage of this fighter was designed so long.

"Maybe you can't understand the pain of our army in using those short-legged fighters in the past, and this time the indicators of the new J-J have raised the problem of range to a very high position, and you can even give up maneuverability for the sake of range!"

On this blank piece of paper, Yang Hui drew a new section of the fuselage, which is the middle fuselage of the plane, and marked the word "oil" here with a red pen.

"That's right, the reason why the fuselage length is increased is because the wingspan of the new aircraft has increased, in order to maintain the original F18 aspect ratio, but also because the long range requires a lot of internal fuel and design, the newly added fuselage compartment is all used to load fuel!"

Yang Hui also felt that this design was a little crazy at this time, although when the American Emperor F18EF was designed, the newly added middle section of the fuselage was also used to hold oil, but the current new Jj is actually much better than the F18 in many aspects. (To be continued.) )