Set sail1992

Chapter 1016 Greatly Inspired
Zhang Qihang was not polite, and said: "There is one more thing, that is the magazine."

"Magazine?" Hearing Zhang Qihang's words, Master He was taken aback, and couldn't help asking: "What's wrong with the magazine?"

"Yes, the magazine," Zhang Qihang nodded and said: "Mr. He, you just introduced that in order to better adapt the engine, the new design scheme enlarged the entire fuselage by a certain proportion, but only according to the introduction The data, it seems that the magazine has not been enlarged or even lengthened synchronously?
If the magazine can be lengthened and enlarged at the same time, does that mean that our new generation of H6 can also use the rotary missile pylon to place cruise missiles in the magazine like the B52 and Tu-95, as far as possible? Guarantee the cleanliness of the entire aerodynamic shape of the aircraft?Even if you can't use six-wheel racks, five-wheel, four-wheel or even three-wheel racks are also good. "

"A magazine?"

Director He looked at the rendering on the projection screen in front of him.

Mr. He didn't think there was any problem with his design before, but now he heard that there is nothing wrong with this design. The magazine has always been in the same line as the H6, but now he heard what Zhang Qihang said, and he immediately realized that it was true. It is necessary to improve the magazine: among other things, how much can the flight range of the aircraft be increased just by the air resistance reduced after the missiles and weapon pylons are built in?

And having said that, the weight of the pylon and the pylon of a missile is not light. The pylons and pylons of these 6 mounting points are counted together, which is several tons in weight. The wheeled missile launcher, just the weight saved by the pylon and the hanging beam and the reduced aerodynamic resistance of the entire aircraft, can ensure that the aircraft with built-in weapons can fly more than the aircraft with external weapons under the same take-off weight. Hundreds or even thousands of kilometers... Does this increase the voyage?Do not!This increases the fighting power!
Not only Master He understands this truth, but also all the comrades present at the meeting today. Thinking of this, everyone can't help but feel a little annoyed: Yes, why didn't I think of such an obvious problem with the magazine?
Thinking of this, Master He nodded heavily and said: "Comrade Qihang, you are right, the magazine should indeed be enlarged... Do you have any suggestions for optimizing the magazine?"

Before this, Master He only politely asked for Zhang Qihang's opinion, but now, he began to take Zhang Qihang's suggestion seriously.

Not only Mr. He, but everyone in the conference room also started to get serious: Although comrade Zhang Qihang is young, he still has a unique perspective on problems, and he can see some things that he didn't notice before at a glance.

Zhang Qihang is also not polite, now is not the time to be polite, he said: "First of all, I think that since the magazine needs to be re-optimized and designed, then considering the development of many new weapons and new weapons in the future, we The principle of "lenient" can be adopted to design the magazine as large as possible, or in other words, make the magazine as large as possible if the existing conditions and capabilities allow.

For example, the length of the current magazine is about 6 meters, right?Let's lengthen it by one-third directly to 9 meters or even 10 meters. Mr. He, do you think it will be possible? "

Someone raised a question: "Mr. Zhang, is the 9-meter or even 10-meter-long magazine too long?"

Master He also nodded, and said: "It's no problem to make the magazine 9 meters or even 10 meters. It's nothing more than extending the fuselage by about two meters, but is it necessary to make such a long magazine?"

In the improvement of aircraft, the easiest thing to achieve is to lengthen the fuselage, and the most difficult thing is to increase the diameter of the fuselage. Take Boeing 737, the most familiar civilian airliner, as an example. The length of the fuselage of the original Boeing 737-100 is only 28.6 meters. , and the latest 737 MAX 10, its fuselage length has reached an astonishing 43.8 meters, while the Boeing 737 has been developing for more than half a century, the core size of the fuselage has not changed, and the outer width has always been 3.76 meters, and the outer height has always been 4.01 meters. From this point, we can see how big is the difficulty gap between lengthening the fuselage and increasing the diameter of the aircraft.

So Mr. He said that it is easier to lengthen the fuselage, which is really easy.

Zhang Qihang smiled and said: "Who knows what the weapons of the future will develop into? Let's take Lao Maozi as an example. Their Kh-55 cruise missiles can be easily loaded into the magazine of the Tu-95MS bomber." But when it comes to Kh-101, it will not work. Because the missiles are too long and the length of the magazine is not enough, all the missiles can only be placed outside and installed on the fuselage pylon, which seriously affects the range of the aircraft.

I think the story of Lao Maozi is also an inspiration for us. Make the magazine longer and larger, even if it is not needed now, but who can guarantee that we will not develop longer-range and larger missiles in the future? "

Listening to Zhang Qihang’s example of Lao Maozi’s Kh-101 and Kh-55 cruise missiles, everyone stopped talking: Indeed, the Kh-101 cruise missile cannot be loaded into the Tu-95MS bomber because of its length. The belly magazine has indeed affected the combat effectiveness of the aircraft to a certain extent, and the reason for this situation can indeed be attributed to the old Maozi's lack of forecast and lack of foresight for the development of new equipment in the future. Say, since we're aware of the problem, why couldn't we avoid these problems in the first place?
Master Lian He also nodded again and again: "It makes sense. It's better to make the magazine bigger than smaller. If you don't need it now, it doesn't mean you won't need it in the future...Comrade Qihang, what else?"

Zhang Qihang pointed out the deficiencies in his own design. Instead of being annoyed, Director He was delighted to hear that: someone can point out the deficiencies in his work from the very beginning. For designers, this is actually a very important task. Thankfully.

"Also, is it possible to design the magazine into a modular structure, and design a multifunctional application module from the beginning?" Zhang Qihang said: "For example, when you need to perform long-distance missions, you can replace the module When it is time, quickly remove the hanger inside the magazine and replace it with an integral fuel tank;

Another example is whether it is possible to design special reconnaissance modules, surveying and mapping modules, electronic countermeasure modules...etc. modules with different functions, and even arrange and combine various modules with different functions? "

Speaking of this, Zhang Qihang said with some embarrassment: "Of course, these are just some very immature opinions of mine, just to provide you with a reference opinion, Mr. He, whether it can be successful..."

I don't know when, Chief Master He was already writing hard, and when he heard Zhang Qihang's words, he said without raising his head: "Comrade Qihang, you are too polite, on the contrary, I don't think these ideas of yours are immature. , On the contrary, I think these ideas are very constructive, many things my comrades and I have not thought of before, but after careful consideration, I think it is very feasible... Do you think there is anything else that can be rushed?"

Everyone also nodded.

Everyone didn't think that Zhang Qihang could give any good advice before, but now, everyone's opinion is different. Zhang Qihang has won everyone's respect with his performance.

"Other areas that can be improved..." Zhang Qihang thought for a while and said, "That is the pylon under the wing."

"Hanger?" Chief Master He raised his head: "I'm a little curious, how else can the hanger be changed?"

"I see the pylon you designed. The parameters say that a single pylon can carry a maximum load of 3000 kilograms, right?" Seeing Master He nodding, Zhang Qihang went on to say: "The Kh-55 cruise missile and the Kh-101 cruise missile just now The example of the -3000 cruise missile, I think that future weapons will definitely become more and more advanced, and at the same time, they will also become bigger and heavier. A single pylon is allowed to hang up to [-] kg Weight, that's fine, but wouldn't it be possible to add some strength?
For another example, can the innermost pylon near the wing root be designed as a super-heavy pylon? If necessary, this mounting point can even be replaced with a double-linked pylon, directly hanging two 3000 kg or even 3500kg load? "

In this way, 8 cuties can be hung under the wings alone. If the belly magazine can hang three or four on a rotating rack... Tsk tsk, with Mr. Liu's small body, I really think about it. Makes people feel insane!

What is the lack of firepower phobia?
This is called lack of firepower phobia!

But when I think that even the second-generation warriors of Lao Lu can install a 122 cannon, the sixth master hangs so many, as long as he can fly, it is reasonable, right?
"..."

This time, Master He didn't answer Zhang Qihang's question right away, but pondered for a while, before he nodded and said: "Yes, it is possible, but in this way, the amount of fuel carried may be reduced, and the voyage will be reduced. Affected a lot, or else you'd be overweight and unable to fly."

"Let's lay the groundwork first," Zhang Qihang said, "Now it's D-30KP-3, who can guarantee that there won't be D-30KP-4 or even D-30KP-5 in the future? Do it better, wait for a certain day in the future, the thrust of the engine will come up, and the form will allow, directly go to the sky to refuel.”

"..."

Everyone immediately looked at Mr. He in unison.

After thinking about it for a while, Chief He finally nodded with a wry smile: "Comrade Qihang's suggestion is very reasonable, but in this way, the previous plan will be overhauled, and even the wings will have to be redesigned."

"Hahaha……"

Hearing Mr. He's words, everyone laughed.

Everyone understood the meaning of Mr. He's words: Although it is difficult and the changes are great, it is obvious that these suggestions made by Zhang Qihang are very appetizing to Mr. He, so that he would rather change his previous ones The design scheme was overhauled.

What is an overhaul?

To a certain extent, the overhaul can also overthrow the previous plan. From this point, it can be seen how much Chief Master He attaches importance to Zhang Qihang's suggestions, and in turn, it also shows that under Chief Master He's In his eyes, Zhang Qihang's suggestions are of great value and significance.

........................

At the end of the meeting, Master He deliberately found Zhang Qihang, and while walking out with Zhang Qihang, he said to Zhang Qihang: "Comrade Qihang, if you have any new ideas in the future, you must remember to tell me."

Zhang Qihang nodded and said: "Definitely! Don't worry, Mr. He."

Nodding his head, Master He asked Zhang Qihang curiously: "Comrade Qihang, does your group really have a development plan for D-30KP-4?"

In fact, in Mr. He's opinion, the current D-30KP-3 can already be said to be a very good medium bypass ratio turbofan engine, and it can even be said that this is a medium and large bypass ratio turbofan engine, and it has already been touched. An engine with a large bypass ratio turbofan threshold, just such an engine, is enough for Huateng Industrial Group to lie down for 20 years or more. In this case, Zhang Qihang even proposed D-30KP-4 and D-30KP-5 The plan of -[-]KP-[-] really surprised Mr. He a little.

Zhang Qihang smiled, and told the truth: "Master He, to tell you the truth, we haven't discussed whether to launch the D-30KP-4 yet, but we have been discussing the optimization of the current D-30KP-3 before. The plan has basically been determined."

"Oh?"

Hearing that there is already the first version of the optimized D-30KP-3 engine plan, Director He's interest suddenly came, and he asked Zhang Qihang enthusiastically: "How much impact can the new plan have on the performance of the engine?" promote?"

"In fact, the increase in thrust is not much, only about 300 kilograms," Zhang Qihang said modestly: "The main reason is the optimization of fuel consumption. The take-off fuel consumption has been reduced from 0.404kg/(daN*h) to 0.398kg/( daN*h), reduced by 0.006kg/(daN*h), cruise fuel consumption rate decreased from 0.643kg/(daN*h) to 0.634kg/(daN*h), reduced by 0.009kg/(daN* h).

In addition to a slight reduction in fuel consumption, the engine life has also increased by 100 hours. In general, the performance improvement is very limited. "

What Zhang Qihang said was very modest, but Chief Inspector He was dumbfounded: the thrust of a single engine has increased by 300 kilograms, which means that the total thrust of the new H6 has increased by 600 kilograms. In terms of the lift coefficient of this aircraft of about 0.272, This 600kg thrust increase means that if the overall structural strength of the aircraft and the strength of the landing gear allow, the take-off weight can be increased by almost 2200kg... This means that a few hundred kilograms less fuel can be added. Take one more long-range cruise missile.

As for the few hundred kilograms of fuel that was brought, it was smoothed out by the reduced fuel consumption rate, which means that if the originally planned battle plan was implemented, under the same range, the new engine would allow Mr. Liu to carry an extra small cute……

What does it mean to increase combat effectiveness?
This is called improving combat effectiveness!

Taking a deep breath, Master He said to Zhang Qihang: "Mr. Zhang, when will your improved new engine be produced?"

"It should be about the same in the middle of next year. After all, it's just a small optimization of the original plan," Zhang Qihang said, "What's wrong?"

"It's nothing." Master He shook his head and asked Zhang Qihang: "Then answer me honestly, brother, how many optimization plans do you have? What is the ultimate goal?"

This time, Mr. He behaved well.

"The ultimate goal is to achieve a performance improvement of about 15% to 20% in the main key indicators through the gradual improvement of 'small steps and quick runs'... Mr. He, what's wrong with you?"

Seeing Master He who started to cover his chest, Zhang Qihang was taken aback.

(End of this chapter)