Chapter 2674: Apply F22

The other designers present were also enthusiastic about it. Yes, they also recognized it. This is applying the aerodynamic layout of the Eagle F22!
Of course, simple application does not have much effect. After all, if the aircraft design can be imitated by looking at the shape, it is too simple. All countries will make it. There is no specific data, even if it is an arc. Different bends will bring about a great change in performance, and even the stealth ability will be greatly reduced. The entire shape is carefully calculated.
This is also the reason why Qin Guan was able to let Xiong people come to the meeting together. Even if they wanted to plagiarize, they couldn’t plagiarize. Here, the appearance of his side is from the Eagle country. They go back to use the Eagle country, and it’s the same. As long as they don't give them the core information, that is enough.
"President Qin, this appearance looks very good!" Mr. Gu exclaimed.
In fact, they have also demonstrated what kind of shape they adopt. Of course, they also want to have an advanced layout. However, whether it is the F-15 or F-20, it is not suitable for the layout of vertical take-off and landing fighters. After all, these The layout is all dual-engine, and there is no place to put the lift engine, so they are forced to have no choice. They can only catch the ducks on the shelves and apply the Yak 141. If they don’t take the next step, they are afraid they will not be able to go. Go down.
Although President Qin had said it at the time, they didn’t care about it. Look now, President Qin was talking about F22. If President Qin had given them such direct and explicit instructions at that time, they might actually try it out. Do it on Jacques 141.
"Yes, this shape was designed after we modeled the shape of the F-22 fighter plane of the Ying Guoren." Qin Guan directly admitted it openly, which can explain why it was taken out so quickly.
Han will not mind being described as plagiarism. Han's copycat ability is already the strongest. Besides, their appearance is the best. Why should I take a different path?
"Okay, let's look at the second picture again." Qin Guan clicked the mouse and switched to the second picture. The first picture is three views, and the second picture is the structure picture.
The lines are quite perfect and exquisite. You can see the things inside. What everyone values ​​most is of course the placement of the engine. This aspect is very similar to the Yak 141. In fact, the vertical take-off and landing of the F-35 was originally learned. Jacques 141, of course, has a layout plan with the same effect.
The rear part is the main engine, the front part is the lift engine, and the middle of the two is equipped with a bomb bay. This also causes the space of the bomb bay to be compressed. When some large precision-guided bombs are deployed, they may not be able to be put down and can only be mounted externally. However, this is also a necessary trade-off.
Compared with the Yak 141 change, that is the inner part of the wing, where there are two more exhaust pipes, which draw out airflow from the compressor of the main engine, and exhaust air downward at this part. It is possible to control the various postures of takeoff more accurately. This is somewhat like the control method of a Harrier fighter. It can be said that various methods are integrated.
"Mr Qin, this layout is quite good." Dongdukov couldn't help but praised: "The engine's compressor bleed air is exactly at the center of gravity, so it can be easily controlled, especially when the vertical take-off turns to horizontal. During the flight, it can also provide a certain amount of lift. The idea is very good, but if this is the case, the engine has to be modified again. Our engine probably does not have this ability."
It has always been equipped with Xiong’s R79 engine, but now the Tumansky Design Bureau has no plans to improve this engine, because there is no future at all, no funding, and the engine cannot be adapted without changes. . After all, the engine is always the main factor that determines the success or failure of a fighter development.
"We have our own engine." Qin Guan said: "Our turbofan-15 will be matched accordingly. This engine has a higher thrust-to-weight ratio and is more suitable for vertical takeoff and landing fighters."
R-79 is just enough power, its own weight is very large, the thrust-to-weight ratio is only about five or six, the level of the second-generation machine, and its turbofan-15, has reached the top level of the third-generation engine.
"Mr Qin, in this design drawing, I saw that our lift fan is almost next to the pilot. This means that there is no room behind the pilot. I am afraid that even the hydraulic mechanism of the cockpit cannot be put down." Gu Always asked again.
If you want to take off and land vertically, the jet must be balanced. The Sea Harrier’s approach is to put the engine in the center, while the Yak 38 approach is to place it forward and backward. The rear and the front work together to put the thrust center on the center of gravity.
Because the engine is at the back, the lift fan in front should be as far forward as possible. Only in this way can it be balanced back and forth, and when it reaches the position of the cockpit, it is already at the front.
So, what about the cockpit organization?
The cockpit needs to have a flip mechanism, the cockpit cover must be opened, the high altitude must be locked, and at the same time, it must be thrown away when parachuting is needed.
Now, almost all the cockpit covers are opened backwards, and various devices are also deployed to the back of the cockpit. If you want to do this now, there is no space in the cockpit.
"The canopy opens forward, just like the MiG 21 used to be." Qin Guan said.
One sentence solved the problem, flip it over, and the canopy opened forward.
The MiG 21 back then did this, but at that time it was definitely not because there was not enough space behind it, but it felt that if you opened it forward, the cockpit cover stood upright, and it could also provide a shelter for the pilot. After all, the MiG 21 was the first to fly. For airplanes at Mach 2, ejection and escape at high speed is a difficult problem. When the airflow at Mach 2 blows over, it is like a knife. It may cut the pilot’s skin and the cockpit cover can be protected in front of the pilot. .
Unfortunately, this is just an idea. Due to the backward technology, there are multiple insurances on it. It is not easy to unlock all of these insurances. The MiG 21 has a high failure rate in ejection and escape. It is also called a living coffin. In the later stages, everything was replaced with a backward opening structure.
It's different now. The current technology is developing very fast. What could not be mature before can now be matured. The F-35 has also become the only fighter that flips the canopy forward. It is very different from others. In fact, it is easier for the pilot to enter the cockpit after flipping forward.
"These are all secondary. The most important thing about this aircraft is not aerodynamics, stealth, or avionics. The most important thing is flight control." Qin Guan said seriously.
Of course, these are all important, but they can all be solved. In terms of one's current ability, it is not a big deal, but the flight control is different.