Hongdu's variable swept wing scheme not only realizes the ultra-high requirements of the range, but also realizes the consideration of the two operational needs of ground and air superiority.

It seems that the only problem with this plan is that it is still a little deficient in the anchor point of the ground attack.

Of course, in order to comprehensively examine a unit's plan, we must not only look at the aerodynamics and range, but also consider the empty weight and maximum take-off weight of the fighter in many aspects.

"Okay, now the last question is very simple, what is the empty weight, maximum take-off weight, and maximum external load of your variable sweep wing scheme?"

The voice of the army naturally needs to be observed with a magnifying glass, and now asking about some weight data of the aircraft, everyone, including Yang Hui, began to guess what kind of data this Hongdu plan would explode.

Just when everyone was still silently evaluating the Hongdu plan in their hearts, Chief Master Li whispered in the Southwest Science and Industry Team.

"I think the empty weight of this Hongdu plan will definitely not be low, the weight of this fuselage alone will definitely not be light, the length and width of the fuselage of this aircraft has caught up with our plan this time, not to mention the dead weight brought by the swept wing mechanism."

Chief Li still understands the Hongdu plan, although the current Chief Li still doesn't know what the weight of the Su-27 big guy is, but at first glance, he saw something unusual from the size of the fuselage of the Hongdu plan.

The subsequent introduction of Chief Master Lu also reflected Chief Li's speculation from the side.

"The empty weight is 14 tons, the maximum take-off weight is 28 tons, and the internal oil is 4.5 tons. The external fuel is 7 tons, and the maximum external weight is 9.5 tons. ”

After saying this, Chief Master Lu also looked at the Science and Technology Commission and the army with some concern in his heart. If you want to say that you are not hypocritical, it is Hongdu's data after exceeding the standard. If the army bites the original technical indicators, Hong Du will have to announce his appearance in the first round.

If you want to say that the heart of the review team on the military side, it is absolutely collapsed, hearing that Hongdu's project is so serious, I originally liked the aerodynamic design of Hongdu's plan, and now my heart has begun to drum.

Hearing the data reported by Hongdu here, Yang Hui was also relieved.

Not to mention the rest, the 14 tons of empty weight of the Hongdu program alone is enough to be comparable to the Southwest Science and Industry Program. Now it can be said at least that on the road to overweight, Southwest Science and Industry is not alone.

"The guess is quite accurate, Chief Li's vision is quite vicious, at least he can know himself and his opponent, it seems that the future of our Southwest Science and Technology Program is bright."

Just when all the participating units were still shocked by the Hongdu plan, the military side accepted the specific written design parameters of the Hongdu plan after some discussion.

"Well, the Hongdu plan is quite interesting. But we need to see more good design proposals, so let's let the next unit present their own proposals. ”

When the army said this, Chief Lu naturally would not continue to speak on the stage, compared to the first 611 plan. Hongdu's plan has been insisted on in terms of the length of the speech.

In addition, the data and design plan have been almost introduced this time, and Chief Lu still left the podium quite simply.

As Chief Master Lu walked off the podium, the Fengtian team under the stage began to stir. The third unit to give a speech on the stage happened to be Fengtiansuo, and Fengtiansuo was also determined to win this time.

Pack up your paperwork. The chief engineer who led the team walked up to the podium to explain the plan brought by Fengtian this time. It's even simpler.

The Fengtian Institute is also quite pragmatic, or conservative, and this kind of thinking has been running through since the establishment of the Fengtian Institute, of course, there are historical reasons for this style.

For example, when we were doing the J-8 and J-9 fighter projects, the J-8 was able to defeat the J-9 program because of the conservative and pragmatic plan, and the J-8 brought real benefits to Fengtian for twenty or thirty years.

In view of these reasons, it is natural for us to inherit the excellent historical tradition, and in this bidding for the new annihilation plan, where will the conservatism of Fengtian be reflected?

The first is to put out the scheme model, for Hongdu's way of concealment, the bold Fengtian naturally disdains to use, everyone understands that people should open the skylight to speak, and what should be placed on the stage to do it.

"Our scheme this time adopts a conventional aerodynamic layout, designed with small side strip wings, as well as trapezoidal wings with medium aspect ratio, twin engine and single vertical tail design, of course, in order to make our design scheme simple at the same time, but also to achieve good combat performance, we will use the wing-body fusion design in the design."

After listening to this large number, everyone felt a little unbelievable and looked at the chief engineer of the team led by Fengtian, who made a speech on the stage, as the eldest son of the aviation industry of the Republic, in such a large-scale military fighter development project, he came up with such a design?

With such a design, even Yang Hui felt a little incredible, did this Fengtian really degenerate like this?

Such a mediocre aerodynamic design, how to confront the design of the previous two units, Hongdu's variable swept wing, 611's canard aerodynamics, which is not a fuel-efficient lamp, Fengtian is better to give up the bidding directly.

Yang Hui was also completely dead to Fengtian's plan at this time, and it was not until the end that he glanced at the model on the stage indifferently.

It doesn't matter if you look at it, after reading it, Yang Hui was startled, what is this? No matter how you look at it, it feels familiar!

If you just look at the aerodynamic design of the wing surface, Yang Hui feels that this kind of thing is somewhat similar to the American F16 design, and the double-engine F16 design, this thing is ......

Yes, if you want to talk about this twin-engine F16, you must talk about my artifact of big bends: IDF fighter, Wanwan's IDF is called the small F16, after all, the design of this aircraft has received private support from the US military industrial complex.

The title of IDF small F16 is recognized by the world, and the biggest difference between IDF and F16 is the difference between single and double engines.

The total thrust of the two small-thrust turbofan engines of the IDF is the thrust of a medium-thrust turbofan engine, and the total thrust will not exceed the thrust of a turbofan 12.

Although IDF has all kinds of unsatisfactory, but the shape of IDF is the design with the highest similarity to the current Fengtian plan, Yang Hui feels that the Fengtian plan is familiar, that is, the previous IDF is too famous in the Republic, and it is difficult for Yang Hui to be unfamiliar with it.

Yang Hui was definitely a little drunk when Fengtian could come up with such a design, but after calming down and thinking about it carefully, he found that such a design was not impossible for Fengtian, and it was even an inevitable result.

Among the aerodynamic design schemes accumulated by Fengtian itself, the most abundant is the conventional aerodynamic layout, and even the design of the J-8 is ****** with a flat tail, which can be regarded as a fairly conventional scheme in the ********** aircraft.

Later, when Fengtian Institute competed with the No. 10 project of the 611 Institute, it also came up with a copycat version of the F16 design, which shows that Fengtian Institute has a deep accumulation of conventional aerodynamic layout.

Remembering the last face 93 Fengtian came up with a design scheme called the new 93, the "new 93" scheme at that time also used two turbofan 12 mid-thrust turbofan engines that were finally dismounted on the previous face.

Later, Fengtian took out the 31 project is also a conventional pneumatic layout, and this pneumatic technical route is very obvious that Fengtian is in the conventional pneumatic layout of a road to the black.

In this project, it seems that it is not surprising that Fengtian has come up with a conventional aerodynamic layout, and it is more inclined to F16 in aerodynamics, naturally because the J-13 design of Fengtian has the same aerodynamic design as F16.

Shouldn't it be the most normal that an aircraft designed by the same aircraft design, having some of the same inheritance in aerodynamics? (To be continued.) )