Mu Feng watched Neptune's reaction, did not make any comments, and turned to the more reliable Sirius.

Sirius nodded slightly, clicked a few times on the console, and opened a file, showing a three-dimensional view of an airplane on the large screen.

Looking at this document, Mu Feng knew that Sirius had already made preparations.

Sirius pointed to the top view of the plane on the big screen and explained to Mu Feng:

"When it comes to designing carrier-based aircraft, our first reaction must be to make some structural modifications to adapt to aircraft carrier take-off and landing on the basis of the J-20's airframe.

"After all, the overall design of the J-20 aircraft is very good, and the smaller the changes we make to her, the smaller the scientific research workload.

"First of all, the load-bearing structure inside the body was redesigned and strengthened, and then the aerodynamic shape was adjusted.

"First of all, it is necessary to reduce the sweep angle of the main wing, increase the wingspan width, and increase the area of the main wing.

"The overall aerodynamic shape and canard shape of the aircraft were then adjusted according to the new main wing structure.

"The most ideal design state can achieve the same level of stealth performance, the same level of avionics performance, and basically the same range, combat radius, and payload capacity as the J-20.

"The maneuverability may be slightly lower, and supersonic cruise can be achieved, but it will certainly not reach 18 times the speed of sound of the full body J-20."

Mu Feng made up for it a little, and the maximum speed was reduced, and there was a little regret, but it was basically okay, at least it would be much stronger than the "medium-sized machine" F35, so he nodded lightly:

"I think it's okay, then the two of you will make the basic design first, and through the simulation of the scientific research system, see what the specific parameters of this aircraft are, and determine how big the scientific research workload is."

Sirius nodded and said, "No problem, Neptune, let's start now, shall we?" ”

Mu Feng looked at Neptune, and Neptune immediately raised his hand and said:

"I want to ask my sister now, your main wing has been changed, the canard wing has to be adjusted, and the overall aerodynamic and stealth design has to be redone, what is the difference between you redesigning an aircraft?"

Sirius said with a smile: "The difficulty of landing on a land-based aircraft is not much different from the redesign, so to speak, we are just using the J-20 as a reference." ”

Neptune said again: "Since there is not much difference from redesign, it is better to simply throw away the existing framework and start from scratch, so as to get the most suitable and excellent carrier-based aircraft." ”

Mu Feng was already a little regretful, but after listening to Neptune's words, he couldn't help but ask:

"From scratch? What if you designed it from scratch? Can it surpass Sirius's scheme? ”

Neptune immediately said: "Yes, of course it can, and in some ways it can even surpass the J-20!" ”

Sirius looked at Neptune with some confusion: "Neptune, are you really not making trouble?" ”

Neptune said with a serious face: "Of course I'm not making trouble, I'm seriously giving advice." ”

Mu Feng became interested: "You are so sure, is there already a suitable design plan?" ”

Neptune said directly: "It's not that I have a plan, but a ready-made design plan, we just don't use it, this plan is 'turning into a swept wing'!" ”

Sirius sighed when he heard this, shook his way, and said:

"The variable swept wing is outdated, and the effect that the variable swept wing can achieve can now be achieved in other ways on conventional fixed wings"

Neptune immediately interrupted: "No, no, no, the so-called other ways to achieve the effect are nothing more than compromise and moderation, the high-speed performance is not good enough, and the low-speed performance is not good enough.

"Only the variable swept wing, which can achieve the highest speed volley, but also has the best landing performance, the most suitable wing structure for heavy carrier-based fighters is always the variable swept wing!

"In fact, the most important thing is that it is handsome to change the swept wing, 9 has changed the swept wing is also very handsome, I think we can all try it, design a few more plans to come out and see which one to decide!"

Mu Feng listened to the last sentence, and began to feel that Neptune was deliberately making trouble, and rubbed Neptune's hair vigorously with both hands:

"We don't have enough energy to mess around, let's get the best body design first!"

Neptune immediately held his head high: "The variable sweep wing is the optimal design, and the existing engine can achieve a higher speed than the J-20, and it is possible to cruise at twice the speed of sound!" ”

Mu Feng listened to the two-speed sonic cruise, subconsciously glanced at Neptune's unexpectedly chest, and was quite skeptical of the authenticity of this statement, so he turned his head to look at Sirius:

"Sirius, does this variable-swept wing have a chance to achieve supersonic cruise at twice the speed of sound?"

Sirius thought for a moment: "With the turbofan 15 and the variable sweep wing design, it is indeed possible to achieve 2 times the speed of sound overcruise, but this design is really outdated.

"The Soviet Union's MiG-23 and Europe's Tornado fighters have also tried to engage in the strong 6 of the swept wing, but they were stillborn.

"The F14 Tomcat, which is the representative of the variable swept wing, was also eliminated and retired because of low reliability, high maintenance costs, heavy death and many other reasons."

Neptune clasped his hands to his chest and said very seriously: "Sister, you are the cause of the inversion, like most ordinary people, looking for the reason why you are willing to believe in an established fact."

"When I saw the retirement of the F14, the representative of the variable swept wing, I decided that the variable swept wing had been eliminated, and then went to the problem of the F14, and then I thought that the problem of the F14 was the problem of the variable swept wing.

But this is not logical at all, it does not stand up to scrutiny, it does not conform to actual history, and even the donkey's head is not in the horse's mouth, more personal speculation, rather than the results of data analysis.

"Without investigation, there is no right to speak, and we have to really analyze from the actual historical data to find the real cause.

"The F14 was not very reliable in the early days for a number of reasons, but it had nothing to do with the variable swept wing.

"Grumman's design for the structural strength of the central wing box was excessively high just to be on the safe side, and there were no problems with the 700 wing boxes throughout the F14's service.

"In the crash of the F14, the central wing box tends to be the most intact structure.

"Extending the scope to the entire variable swept wing structure, counting all the accidents of F14, only 2 of them are due to the variable swept wing, this kind of low probability event, can only be attributed to accidents.

"So the F14 is not very reliable, and it has almost nothing to do with the variable sweep wing design.

"As for the high maintenance cost of the F14, this is not directly related to the variable sweep wing design.

"The F14 Tomcat is the world's first true third-generation aircraft, the first true twin-engine heavy carrier-based aircraft, and the first variable-swept wing carrier-based aircraft.

"With the first modern radar, the first afterburner turbofan engine, the first gas turbine that can operate at supersonic speeds at sea level.

"After eating so many big crabs at one time, it's no wonder that there are not many problems with the early models!

"The AWG9 large airborne fire control radar that weighs half a ton and is one meter in diameter, the old-fashioned hydraulic transmission and control circuits, and the immature aero engine.

"These new equipment and issues resulted in an earlier model F14A maintenance man-hours of up to 313 oblique.

"But when the technology matured, the F14D maintenance man-hours were reduced to 178 obliques, which is 22 oblique for F15CD and 19 oblique for F18C.

"As for the death of the majority, this has something to do with the swept wing, but not just the swept wing.

"The F14's wing box structure weighs about 1 ton, but her radar weighs half a ton, and the mechanical transmission structure is also the reason for the death.

"If we redesign the production of the wing box with the technology of the 21st century, or even the technology of our world, the weight will be greatly reduced.

On the other hand, the folding structure of the conventional wing should account for the weight, and the conventional wing should also account for a part of the weight in order to adapt to the different conditions of low-speed and high-speed flight at the same time.

"The variable sweep wing does not need these weights, and the difference between one plus one and one subtraction may only be three to five hundred kilograms.

"And the benefits of these three or five hundred kilograms are, higher assault speed, better landing performance, and really achieving both high and low speed performance, I think these three or five hundred kilograms are very cost-effective."

Mu Feng and Sirius were stunned by what Neptune said, but they didn't expect Neptune to be a cat party.

After hearing this, Sirius couldn't help but ask, "Since there is no problem with the F14, then why retire?" ”

Neptune spread his hands helplessly: "The F14 production line has been closed for many years, and the existing F14 aircraft at that time were already overage, and the F22 had also been put into service, so there was no need to reopen the F14 production line."

"The more important reason is that the biggest rival, the Soviet Union, collapsed, and Congress believed that the Fox's future task was to beat up the animals, so the aircraft design began to pursue multi-purpose and low-cost.

"The F14, an aircraft designed for high-speed interception and high-intensity air combat, is no longer useful, so the F14 is retired and replaced with a cheap, full-featured F18 Super Hornet.

"But the retirement of the F14 has nothing to do with its own performance, nor does it have anything to do with the variable swept wing design."

Sirius continued to ask: "Since there is no problem with the design of the variable swept wing, why did the fourth-generation carrier-based aircraft F35 of the new generation of the American Fox not use the continuous variable swept wing design, but the same butterfly wing design as the F22?"

Neptune immediately said: "The F35 was not originally a carrier-based aircraft of the Fox, it was only a project of the Marine Corps from the beginning, and it was just a vertical short take-off and landing aircraft at the beginning.

"The fox has its own design for the next generation of carrier-based aircraft, and if there is a pair of people, it will not want the F35.

"But the time when they began to design a new generation of carrier-based aircraft happened to be the late 80s, early 90s, when the Soviet Union collapsed, the Cold War ended, and military spending was massively reduced.

"At that time, the American Fox had two key plans, one was to replace the F14's next-generation carrier-based fighter, and the other was to replace the A10's next-generation carrier-based attack aircraft ATA12).

In order to increase the probability that his project will survive under the machetes of the old men on Capitol Hill, the fox even pinched his nose and made a deal with the old and dead Air Force.

"Fox uses F22 technology to change shells to make carrier-based aircraft, codenamed NATF, she is a swept wing design, at the cost of giving her A12 technology to the Air Force to develop a successor to the F111.

"However, the communication between the fox and the air force was quite difficult, and the environment was too tense at that time, and I didn't know when the congressional knife would be cut, the development pressure was very high, and the difficulty was already high, so the progress of the whole project was very slow.

In this environment, Fox began to judge the situation, believing that the F14, as an air superiority fighter, could continue to be used until 2010 and maintain global superiority, and he still had 20 years to find opportunities to design new fighters.

So Fox took the initiative to abandon the slow-moving NATF project and strive to complete the A12 project with all his might, but at about the same time, the A12 project was cut by Congress.

So Fox began to plan the AX project, as a replacement for the A12, an attack aircraft part-time fighter, and also a swept wing design, which lived until 93 and died under the Capitol machete.

At the same time, a design team from the F22 design company also designed a fighter codenamed AFX653 for the fox, which was also a variable swept wing design, and died at the end of 93.

This shows how persistent the fox is about the design of the variable swept wing

"All in all, after the end of the Cold War, the United States has shrunk its spending, and the old men on Capitol Hill not only cut the Fox's new carrier-based aircraft project, but also cut the Air Force's F22 production, and finally shut down the F22 production line.

"Do you want a new plane? Congress said this, pressed the neck of the fox and the air force with both hands, and went to eat the Marine Corps meal together, and finally came up with the F35ABC series shared by the three families.

"So it's never history that weeds out the swept wings, it's money and the old men of Capitol Hill."

After hearing this, the Sirius King couldn't help but smile and said, "Neptune, you told this story well."

Neptune shook with a serious face:

"I am talking about these things to show what kind of carrier-based aircraft the American Fox really wants, as the most powerful and experienced modern fox on the planet.

"It is a heavy high-speed stealth fighter with a variable swept wing, plus a stealth attack aircraft with a similar flying wing structure.

"And these projects that they have to give up because of cost and environmental considerations can be used as our design reference, crossing the river by touching the eagle sauce, and touching this last time, and then we can only go by ourselves."

Sirius frowned slightly and said, "So Neptune, you mean, we're going to just copy this design now?" ”

Neptune swayed: "Of course we can't copy it, we have to combine it with our own reality, and their designs have not been tested in practice, so we can't fully believe them." ”

Mu Feng thought for a while: "Neptune is right, my suggestion is that the two of you act separately, Sirius tries to refer to our J-20 for design, and Neptune refers to the scheme design of the American fox."

"When the basic shape design of the two of you is completed, we will test the various data of the two designs through the system to see which scheme is better, and then work together for the next step of formal research and development."

Sirius also nodded seriously: "This method is relatively safe, my plan has not changed, so I have no problem here"

Speaking of this, Sirius seemed to suddenly think of something, and hurriedly asked to confirm:

"I suddenly thought, with the design of the swept wing, the wing is changing, how to deal with stealth?"

Neptune thought for a moment: "My idea is to design stealth for one or two specific angles, such as about 60 degrees for high-speed penetration and about 45 degrees for cruising, on these two solid degrees, the best stealth effect can be achieved, and other angles can be weakened or simply abandoned."

Sirius was stunned for a moment, and then nodded slowly: "It's really the only way to do it, it's okay to design the most needed angles for cruising and penetration to be stealthy, and other angles such as takeoff, landing, and parking don't actually need stealth."

Mu Feng stroked the hair of the two: "Then let's start like this." ”

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